Re: Python SOAP library
W dniu 2012-05-02 17:35, Alec Taylor pisze: Would you recommend: http://code.google.com/p/soapbox/ Or suggest another? I am having lots of fun and positive experience with https://github.com/arskom/rpclib Awesome doc and example code and, most importantly, it works! :) -- John -- http://mail.python.org/mailman/listinfo/python-list
Django/AppEngine DevSoup
Sooo I have a windows box... which I like to think is the reason I'm a django/appengine mess right now. There's eclipse, pydev, django non-rel, mediagenerator, etc Would it be stupid of me to just use the simple, clean notepad++ & django with aims to port into appengine after I finish in a week? I don't want to deal with all of the other stuff. Will this come back to haunt me in 7 days? Yours frazzled, John -- http://mail.python.org/mailman/listinfo/python-list
How do I automatically download files from a pop up dialog using selenium-python?
Please help. Thanks. -- https://mail.python.org/mailman/listinfo/python-list
python list index - an easy question
Hi, I am new to Python, and I believe it's an easy question. I know R and Matlab. >>> x=[1,2,3,4,5,6,7] >>> x[0] 1 >>> x[1:5] [2, 3, 4, 5] * My question is: what does x[1:5] mean? By Python's convention, the first element of a list is indexed as "0". Doesn't x[1:5] mean a sub-list of x, indexed 1,2,3,4,5? If I am right, it should print [2,3,4,5,6]. Why does it print only [2,3,4,5]? Thanks!! John -- https://mail.python.org/mailman/listinfo/python-list
FS: PC Doctor
Bought from http://www.PCbeginner.com two weeks ago. Now my computer got fixed and I do not need it any more. Asking $15 only. I will ship to you by first class mail. Email: [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
FS: PC Doctor
Bought from http://www.PCbeginner.com two weeks ago. Now my computer got fixed and I do not need it any more. Asking $15 only. I will ship to you by first class mail. Email: [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Python HTTP digest authentication woes...
I'm trying to access the XML version of my Tivo now playing list with python. It uses auth digest HTTP authentication. I could really use some help! I'm able to get this page using curl: curl --dump-header tivoHeaders --insecure --anyauth --user tivo:808 "https://192.168.1.102/TiVoConnect?Command=QueryContainer&Container=%2FNowPlaying&Recurse=Yes"; But when I use my python script, I get rejected: https://192.168.1.102/TiVoConnect?Container=%2FNowPlaying&Command=QueryContainer&Recurse=Yes Error 401 Server: tivo-httpd-1:7.1b-01-2:140 Set-Cookie: sid=DEC2D78EABF48A6D; path=/; expires="Saturday, 16-Feb-2013 00:00:00 GMT"; WWW-Authenticate: Digest realm="TiVo DVR", nonce="FD08EF226909CA85", qop="auth" Content-Length: 31 Content-Type: text/html Connection: close Digest realm="TiVo DVR", nonce="FD08EF226909CA85", qop="auth" I've scrounged for examples out there and the couple that I've found just don't seem to work for me.. Here's one way I've tried: = import urllib2 theurl = "192.168.1.102/TiVoConnect?Container=%2FNowPlaying&Command=QueryContainer&Recurse=Yes" print theurl protocol = 'https://' username = 'tivo' password = '808' passman = urllib2.HTTPPasswordMgrWithDefaultRealm() passman.add_password(None, theurl, username, password) authhandler = urllib2.HTTPDigestAuthHandler(passman) opener = urllib2.build_opener(authhandler) urllib2.install_opener(opener) try: pagehandle = urllib2.urlopen(protocol + theurl) except IOError, e: if hasattr(e, 'code'): if e.code != 401: print 'We got another error' print e.code else: print "Error 401" print e.headers print e.headers['www-authenticate'] === I get 401 every time! This was taken from an example online almost verbatim, the only major thing I changed was HTTPBasicAuthHandler --> HTTPDigestAuthHandler. Any ideas or help would be greatly appreciated! Thanks, -John -- http://mail.python.org/mailman/listinfo/python-list
socket + file i/o question
I am sending a file on a tcp socket using the following code while 1: buf = os.read(fd, 4096) if not buf: break print total, len(buf) conn.send(buf) The recieving code looks like while 1: if recvbytes == filesize: print 'Transfer done. Size = %d' % recvbytes break buf = s.recv(4096) if not buf: print 'EOF received' raise Exception() print recvbytes, len(buf) os.write(fd, buf) recvbytes = recvbytes + len(buf) My problem is that the first time the client uploads a file to the server, the code works. But then when the server wants to download a file to the client, the same code breaks down! The problem seems to be the socket. The send part sends exactly the amount of data it reads from the file. But the recv part gets one more byte than the size of the file?? It seems to me that this extra one byte is coming inside the send/recv calls. Anyone has any comments on where this extra one byte is coming from? Thanks a lot for your help, --j -- http://mail.python.org/mailman/listinfo/python-list
Re: socket + file i/o question
Here is what the send and recieved number of bytes show up as: Filesize being sent = 507450 Server sending file to client... (total size sent , buffer size) ... 491520 4096 495616 4096 499712 4096 503808 3642 ./server.py: (107, 'Transport endpoint is not connected') On the client side, the bytes recieved shows one extra byte! (Bytes recieved, buffer size) ... 504256 1400 504256 1400 505656 1400 505656 1400 507056 1400 507056 395 507451 395 EOF received ./client.py: An unknown error occurred. Note that on the client there was an extra byte?? 507451 ?? Hope this helps in explaining my question better, --j -- http://mail.python.org/mailman/listinfo/python-list
Re: socket + file i/o question
I found the problem. There was a recv that was not from an open socket... Sorry abt the trouble, --j -- http://mail.python.org/mailman/listinfo/python-list
zipped socket
Is there anyway open a socket so that every send/listen/recv goes thru a zipping/unzipping process automatically? Thanks, --j -- http://mail.python.org/mailman/listinfo/python-list
client server question
I have a simple script that runs a server where one client can connect. I would like to make it so that many clients can connect to one server on the same port. Where can I find how to do this? Thanks, --j -- http://mail.python.org/mailman/listinfo/python-list
Re: client server question
Thanks a lot,
I think I could modify this to get my work done.
--j
Chris Curvey wrote:
> import threading
> import logging
>
> ##
> class Reader(threading.Thread):
> def __init__(self, clientsock):
> threading.Thread.__init__(self)
> self.logger = logging.getLogger("Reader")
>
> #-
> def run(self):
> self.logger.info("New child %s" %
> (threading.currentThread().getName()))
> self.logger.info("Got connection from %s" %
> (clientsock.getpeername()))
>
>
> # set up a socket to listen for incoming connections from our clients
> s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
> s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
> s.bind((host, port))
> s.listen(1)
>
> while True:
> try:
> clientsock, clientaddr = s.accept()
> except KeyboardInterrupt:
> raise
> except:
> traceback.print_exc()
> continue
>
> client = Reader(clientsock)
> client.setDaemon(1)
> client.start()
--
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sizeof(long) from python
I want to know the sizeof(long) / sizeof(int) ... in C from python. (This is to read a set of numbers output from a C Code and can be machine dependent). Is there an easy way except writing a C program and parsing its output? Thanks, --j -- http://mail.python.org/mailman/listinfo/python-list
Re: sizeof(long) from python
Thanks a lot, That solved my problem. --j -- http://mail.python.org/mailman/listinfo/python-list
help in simplification of code [string manipulation]
How could I simplify the code to get libs out of LDFLAGS or vice versa automatically in the following python/scons code? if sys.platform[:5] == 'linux': env.Append (CPPFLAGS = '-D__LINUX') env.Append (LDFLAGS = '-lglut -lGLU -lGL -lm') env.Append(CPPPATH=['include', 'include/trackball']) libs = ['glut', 'GLU', 'GL', 'm',] Thanks, --j -- http://mail.python.org/mailman/listinfo/python-list
Re: help in simplification of code [string manipulation]
Thanks for your replies... Solved my problem. --j Christophe wrote: > John a écrit : > > How could I simplify the code to get libs out of LDFLAGS > > or vice versa automatically in the following python/scons code? > > > > if sys.platform[:5] == 'linux': > > env.Append (CPPFLAGS = '-D__LINUX') > > env.Append (LDFLAGS = '-lglut -lGLU -lGL -lm') > > env.Append(CPPPATH=['include', 'include/trackball']) > > libs = ['glut', > > 'GLU', > > 'GL', > > 'm',] > > > > > > Thanks, > > --j > > > > Why don't you use the LIBS var in the environment instead of the LDFLAGS > ? And what use would be the libs var for you ? > > if sys.platform[:5] == 'linux': > libs = ['glut', > 'GLU', > 'GL', > 'm',] > env.Append (CPPFLAGS = '-D__LINUX') > env.Append (LIBS = Split(libs)) > env.Append(CPPPATH=['include', 'include/trackball']) -- http://mail.python.org/mailman/listinfo/python-list
Re: help in simplification of code [string manipulation]
But ur previous solution worked on my machine... although a friend tried it on his machine and the libraries were not found even if they existed! (Even the -lm was not found) Can you explain a bit why the previous solution worked? Thanks for ur help, --j -- http://mail.python.org/mailman/listinfo/python-list
Re: difference between class methods and instance methods
Steven Bethard wrote:
John M. Gabriele wrote:
1. Are all of my class's methods supposed to take 'self' as their
first arg?
If by "class's methods" you mean methods on which you called
classmethod, then no, they shouldn't take a 'self' parameter, they
should take a 'cls' parameter because the first argument to the function
will be the class:
class C(object):
@classmethod
def f(cls, *args):
# do stuff
Sorry -- I'm not as far along as you suspect. :) I've
never yet seen this "@classmethod" syntax. I'm supposing that
it's part of this so-called "new-style" class syntax.
When I ask "are all my class's methods...", I mean, when
I'm writing a class statement and the def's therein -- are
all those def's supposed to take 'self' as their first arg.
From your reply, I gather that, unless I'm using this special
syntax (@classmethod or @staticmethod), all my def's are supposed
to take 'self' as their first arg.
Undecorated methods (e.g. those that are not wrapped with classmethod or
staticmethod) should, on the other hand, take a 'self' parameter.
Ok. Check.
So then, are all def's -- that take 'self' as their first --
argument -- in a class statement, instance methods?
2. Am I then supposed to call them with MyClass.foo() or instead:
bar = MyClass()
bar.foo()
Classmethods should be called from the class. Python allows you to call
them from the instance, but this almost never does what you want, e.g.:
py> d = {}
py> d.fromkeys(range(4))
{0: None, 1: None, 2: None, 3: None}
py> d
{}
Note that 'd' is not updated -- I called a classmethod, not an
instancemethod. If I had called dict.fromkeys instead, this would have
been clearer.
Right. An important lesson in C++ as well.
3. Is "bound method" a synonym for instance method?
4. Is "unbound method" a synonym for class method?
No. To simplify things a little[1], a "bound method" is an instance
method that has been associated with a specific instance, and an
"unbound method" is an instance method that has not been associated with
a specific instance.
Ok! Now I'm making some headway. *This* is getting
at the crux of the biscuit.
Consider the difference between str.join and ''.join:
py> str.join
>
py> ', '.join
>
Hmm... weird.
py> str.join(['a', 'b', 'c'])
Traceback (most recent call last):
File "", line 1, in ?
TypeError: descriptor 'join' requires a 'str' object but received a 'list'
>
Right -- 'cause there's no actual instance of a string
to do the joining. Check.
py> ', '.join(['a', 'b', 'c'])
'a, b, c'
Check.
py> str.join(', ', ['a', 'b', 'c'])
'a, b, c'
Ack! Now you're creeping me out. Looking at the doc for str.join:
| py> help( str.join )
| Help on method_descriptor:
|
| join(...)
| S.join(sequence) -> string
|
| Return a string which is the concatenation of the strings in the
| sequence. The separator between elements is S.
|
It says that you didn't call that method correctly. Yet
it works anyway!? What's happening here?
In the example above, you can see that str.join is an "unbound method"
-- when I try to call it without giving it an instance, it complains. On
the other hand, ', '.join is a "bound method" because it has been bound
to a specific instance of str (in this case, the instance ', '). When I
call it without an instance, it doesn't complain because it's already
been bound to an instance.
Ok. I see that distinction. Thanks.
Where do the so-called "static methods" fit into all this?
By the name of them, it sounds like the same thing as class
methods...
Staticmethods, like classmethods, are associated with the class object,
not the instance objects.
That makes sense.
The main difference is that when a
staticmethod is called, no additional arguments are supplied, while when
a classmethod is called, a first argument, the class, is inserted in the
argument list:
py> class C(object):
... @classmethod
... def f(*args):
... print args
... @staticmethod
... def g(*args):
... print args
...
py> C.f(1, 2, 3)
(, 1, 2, 3)
py> C.g(1, 2, 3)
(1, 2, 3)
STeVe
Thanks for that nice example. It looks like you're always
supposed to call both class and static methods via the class
name (rather than an instance name). I'll read up on what
this new @classmethod and @staticmethod syntax means.
[1] Technically, I think classmethods could also considered to be "bound
methods" because in this case, the method is associated with a specific
instance of 'type' (the class in which it resides) -- you can see this
in the first argument that is supplied to the argument list of a
classmethod.
--
--- remove zees if replying via email ---
--
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Re: difference between class methods and instance methods
Duncan Booth wrote: John M. Gabriele wrote: I've done some C++ and Java in the past, and have recently learned a fair amount of Python. One thing I still really don't get though is the difference between class methods and instance methods. I guess I'll try to narrow it down to a few specific questions, but any further input offered on the subject is greatly appreciated: I'll try not to cover the same ground as Steven did in his reply. Thanks for taking the time to reply Duncan. 1. Are all of my class's methods supposed to take 'self' as their first arg? consider this: class Demo(object): def foo(self, x): print self, x @classmethod def clsmethod(cls, x): print cls, x @staticmethod def stmethod(x): print x instance = Demo() Calling a bound method, you don't pass an explicit self parameter, but the method receives a self parameter: bound = instance.foo bound(2) <__main__.Demo object at 0x00B436B0> 2 > Note that it doesn't matter whether you call instance.foo(2) directly, or bind instance.foo to a variable first. Either will create a *new* bound method object, and the correct instance is used for the call. Za! What do you mean, "create a new bound method object"? I *already* created that method when I def'd it inside the 'class Demo' statement, no? This is significantly different from languages such as C++ and Javascript which are a real pain if you want to use a method as a callback. Calling an unbound method, you pass a self parameter explicitly (and it must be an instance of the class, *or an instance of a subclass*: unbound = Demo.foo unbound(instance, 2) <__main__.Demo object at 0x00B436B0> 2 A! See, coming from C++, the first thing I thought when I saw what you just wrote was, "whoops, he shouldn't be calling that instance method via the class name -- it's a bad habit". Now I think I see what you mean: you may call an instance method in two ways: via an instance where you don't pass in anything for 'self', and via the class name, where you must supply a 'self'. Again is doesn't matter whether you do this in one step or two. The usual case for using an unbound method is when you have overridden a method in a derived class and want to pass the call on to a base class. e.g. Ok. Interesting. class Derived(Demo): def foo(self, x): Demo.foo(self, x) A class method is usually called through the class rather than an instance, and it gets as its first parameter the actual class involved in the call: Demo.clsmethod(2) 2 Derived.clsmethod(2) 2 Check. You can call a class method using an instance of the class, or of a subclass, but you still the get class passed as the first parameter rather than the instance: d = Derived d.clsmethod(2) 2 Ok, so it looks like it may lead to confusion if you do that. I wonder why the language allows it... A common use for class methods is to write factory functions. This is because you can ensure that the object created has the same class as the parameter passed in the first argument. Alternatively you can use class methods to control state related to a specific class (e.g. to count the number of instances of that exact class which have been created.) There is no equivalent to a class method in C++. Right. I see -- because in Python, a reference the actual class object is implicitly passed along with the method call. Whereas, C++ doesn't even have "class objects" to begin with. Static methods are like static methods in C++. You can call them through the class or a subclass, or through an instance, but the object used in the call is not passed through to the method: Demo.stmethod(2) 2 instance.stmethod(2) 2 Derived.stmethod(2) 2 d.stmethod(2) 2 2. Am I then supposed to call them with MyClass.foo() or instead: bar = MyClass() bar.foo() ? If you have an instance then use it. If the class method is a factory then you might want to create a new object of the same type as some existing object (but not a simple copy since you won't get any of the original object's state). Mostly though you know the type of the object you want to create rather than having an existing instance lying around. 3. Is "bound method" a synonym for instance method? Close but not quite. It is a (usually transient) object created from an unbound instance method for the purposes of calling the method. ... hmm... bound methods get created each time you make a call to an instance method via an instance of the given class? 4. Is "unbound method" a synonym for class method? Definitely not. Right. :) And if anyone's *really* daring: Where do the so-called "static methods" fit into all this? By the name of them, it sounds like the same thing as class methods... See above. -- --- remove zees if replying via email --- -- http://mail.python.org/mailman/listinfo/python-list
Re: difference between class methods and instance methods
Diez B. Roggisch wrote: John wrote: ... hmm... bound methods get created each time you make a call to an instance method via an instance of the given class? No, they get created when you create an actual instance of an object. So only at construction time. Creating them means taking the unbound method and binding the created object as first argument to the method. Thus each instance of a class Foo with a method bar has its own instance of bar - the bound method bar. But only one per object. O. Unlike C++, where methods are not first class objects and you only have *one* that gets shared by all instances. I'm getting it. Thanks for the reply. :) ---J -- --- remove zees if replying via email --- -- http://mail.python.org/mailman/listinfo/python-list
Re: difference between class methods and instance methods
Duncan Booth wrote: [snip] Bound methods get created whenever you reference a method of an instance. If you are calling the method then the bound method is destroyed as soon as the call returns. You can have as many different bound methods created from the same unbound method and the same instance as you want: inst = C() f1 = inst.foo f2 = inst.foo f1, f2 (>, >) I just wanted to interject, although those two hex numbers in the above line are the same, calling id() on f1 and f2 produces two *different* numbers, which agrees with the point you made. f1 is f2 False f1 is inst.foo False Every reference to inst.foo is a new bound method. -- --- remove zees if replying via email --- -- http://mail.python.org/mailman/listinfo/python-list
Re: having troubleing finding package for Twisted 1.3 for Mac OS X 10.3.x
fuzzylollipop wrote: just got a Powerbook and need to do twisted development on it, but I can't find a simple straight foward instructions on installing Twisted 1.3 on it. Also the package manager at undefined.org has 1.1.0 and it doesn't work with 10.3.x ( pre-installed Python ) any help is welcome I'm pretty sure the package manager at undefined.org had lapsed into disrepair. IIRC, the author has not updated it in a long time and doesn't plan to. Have you tried building from source? It should just be a simple './configure', 'make', and 'sudo make install', no? ---J -- --- remove zees if replying via email --- -- http://mail.python.org/mailman/listinfo/python-list
running a python script in drpython
Haveing problems writeing a program then running it in python 2.3.5 interpreter. Called the program test.py used chmod to make it executable in linux #! /usr/bin/python print 2** 8 print 'the bright side ' + 'of life' >>> python test.py File "", line 1 python test.py ^ SyntaxError: invalid syntax how do you run a script you create in the python interpreter? Thanks John -- http://mail.python.org/mailman/listinfo/python-list
Re: running a python script in drpython
john wrote: Haveing problems writeing a program then running it in python 2.3.5 interpreter. Called the program test.py used chmod to make it executable in linux #! /usr/bin/python print 2** 8 print 'the bright side ' + 'of life' >>> python test.py File "", line 1 python test.py ^ SyntaxError: invalid syntax how do you run a script you create in the python interpreter? Thanks John You have to import the script into the interpreter. >>> import test 256 the bright side of life -- http://mail.python.org/mailman/listinfo/python-list
Re: Delphi underrated, IDE clues for Python
"Caleb Hattingh" <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>... > thx, I already have and use PythonForDelphi (and am on the mailing list). > > It works very well indeed, my impression is that Python-Delphi connection > is even easier than Python-C integration (e.g. via SWIG, etc), due once > again to the Delphi IDE. Drag-n-drop in the IDE gets you python code in > your delphi code, or delphi units/objects accessible in python. > > However, Delphi is not platform indpendent (which is important for me as I > use a different OS at work and at home), and I don't know if > PythonForDelphi supports Kylix. I am fairly sure it doesn't support > Lazarus, which IS platform independent, but not as feature-rich as Delphi. > > Btw, on the SHOOTOUT page, you'll see that the Delphi rank for LOC is 28. > This number is pretty meaningless in practice because the IDE does a lot > of code generation for you. More interesting would have been to see the > rank for LOC you have to type yourself... > > On 27 Nov 2004 05:17:38 -0800, bearophile <[EMAIL PROTECTED]> wrote: > > > Delphi is a very good language, and quite fast too: > > http://dada.perl.it/shootout/delphi.html > > > > > > Caleb Hattingh>STILL...Having a Delphi-like IDE for Python would make me > > giddy. > > > > Maybe here you can find a way to use both at the same time: > > http://www.atug.com/andypatterns/pythonDelphiTalk.htm > > http://membres.lycos.fr/marat/delphi/python.htm > > > > Bearophile Python + Delphi is pretty much the Zen of programming for me, for now. Both excel in what they try to accomplish, stand at opposite ends of the spectrum, yet compliment each other beautifully. PythonForDelphi is the only language embedding I have done without any stress recently. When I make GUI software, I only do it for MS Windows. So portability is not an issue. I have not moved to Delphi.NET because Python gives everything missing from Delphi and I can have best of both the worlds while still having a fast, very rich (thanks to all those VCL freeware) and responsive GUI and under 2-3 MB distribution. For same reasons, I never really made a full blown GUI app with any Python bindings. It's just too easy to design a GUI with Delphi and write Windows specific code. I wish Borland focussed more in this direction. Bruce Eckel has been saying for quite a while that Borland should bring their IDE expertise to make a Python IDE. I think Python For Delphi module is grossly under rated like Delphi. -- http://mail.python.org/mailman/listinfo/python-list
Chrooted Python problem
Hello to all I lately installed the python 2.3 and mod_python 2.7.10 My apache runs in a chrooted enviroment so i want to chroot pyton and mod_python as well. I have copy the /usr/local/apache/libexec/mod_python.so -> /chroot /usr/local/apache/libexec/mod_python.so /usr/local/lib/python2.3 -> /chroot/usr/local/lib/python2.3 /usr/local/bin/python -> /chroot/usr/local/bin/python And some .so files in the /chroot/lib directory that the ldd /usr/local/bin/python and ldd /usr/local/apache/libexec/mod_python.so indicated The problem is that i can start the apache in the chrooted enviroment but its childs (or children) processes (of apache) increasing and increasing until the apache crashes (160-200 apache process). When i disable the loading of mod_pyton.so in the httpd.conf then everything works well like it used to. Do you know any cure about that problem? -- http://mail.python.org/mailman/listinfo/python-list
Re: Chrooted Python problem
- Original Message - From: John To: [EMAIL PROTECTED] Sent: Sunday, December 05, 2004 9:10 PM Subject: Chrooted Python problem Hello to all I lately installed the python 2.3 and mod_python 2.7.10 My apache runs in a chrooted enviroment so i want to chroot pyton and mod_python as well. I have copy the /usr/local/apache/libexec/mod_python.so -> /chroot /usr/local/apache/libexec/mod_python.so /usr/local/lib/python2.3 -> /chroot/usr/local/lib/python2.3 /usr/local/bin/python -> /chroot/usr/local/bin/python And some .so files in the /chroot/lib directory that the ldd /usr/local/bin/python and ldd /usr/local/apache/libexec/mod_python.so indicated The problem is that i can start the apache in the chrooted enviroment but its childs (or children) processes (of apache) increasing and increasing until the apache crashes (160-200 apache process). When i disable the loading of mod_pyton.so in the httpd.conf then everything works well like it used to. Do you know any cure about that problem? -- http://mail.python.org/mailman/listinfo/python-list Does anybody know? -- http://mail.python.org/mailman/listinfo/python-list
My code won't work if I double click the saved file
I have windows 8 running on my computer and I think I downloaded python 2 and 3 simultaneously or I think my computer has built in python 2 and I downloaded python 3. And now when I ran my code in IDLE, the code works fine but when I save my program and double click the save file, it will run but it doesn't worked like it used to work in IDLE. Can someone explain the possible problem I'm currently facing? I just want my program to run perfectly in both IDLE and when I double click the saved file. I posted my question in stackoverflow but I didn't find an answer. http://stackoverflow.com/questions/31692156/i-think-my-computer-has-built-in-python-2-and-i-installed-python-3 -- https://mail.python.org/mailman/listinfo/python-list
py2app dependency determination?
Hi, trying to get py2app to work. It keeps saying that we need Pillow-PIL, which is wrong. And, anyways, Pillow-PIL fails to install. The program works fine as a normal python script, and it doesn't use Pillow- PIL. Any ideas? thanks -- https://mail.python.org/mailman/listinfo/python-list
Re: py2app dependency determination?
Steven D'Aprano wrote:
> On Sat, 21 Jun 2014 16:50:22 -0800, john wrote:
>
>> Hi, trying to get py2app to work. It keeps saying that we need
>> Pillow-PIL, which is wrong. And, anyways, Pillow-PIL fails to install.
>>
>> The program works fine as a normal python script, and it doesn't use
>> Pillow- PIL. Any ideas?
>
> Yes.
>
> (1) Since this is specifically a py2app issue, you may have better
> results from asking on a dedicated py2app mailing list.
>
> (2) Is it possible that Pillow or PIL is a dependency of py2app, and the
> error has nothing to do with your script at all? What happens if you run
> py2app on a minimal script like this?
>
> # hello.py
> print("hello world")
>
> (3) If not, please post a minimal set of steps that demonstrates the
> problem, and the *exact* error message generated (if possible). For
> example:
>
> Download py2app version 1.3 from http://some.place.com
>
> Run the py2app installer.
>
> Create a minimal script hello.py (as above)
>
> Run py2app hello.py
>
> The result is ... [whatever actually happens]
>
>
>
We will try that, thank you
--
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Re: stackoverflow and c.l.py
On Sep 14, 4:58 pm, Steven D'Aprano wrote: > memilanuk wrote: > > On 09/14/2011 05:47 AM, Chris Angelico wrote: > >> The SNR here isn't bad either. Most of the spam gets filtered out, and > >> even stuff like Ranting Rick posts can be of some amusement when it's > >> a slow day... > > > I subscribe to the list via Gmane, and if 'most of the spam' gets > > filtered out, I'd hate to see how much gets submitted as I still see 2-5 > > minimum blatant spam per day on here. > > 2-5 spam posts is nothing. (Well, I know any spam is too much spam, but > still.) Since nearly all of it is obvious, it's easy to filter out of your > mail client, news client, or if all else fails, your attention. The hard > ones to ignore are the ones that look like they might be legitimate, but > fortunately most spammers are too lazy or stupid to bother with even the > most feeble disguise. > > Either way, I don't consider half a dozen spam posts a day to be anything > more than a minor distraction. > > Commercial spam is annoying, but otherwise harmless because it is so easy to > filter. What's really the problem is crackpots, trollers and griefers, > because there is a terrible temptation to engage them in debate: "someone > is wrong on the Internet!". If you want to see a news group gone bad, go to > something like sci.math. You can't move for the cranks "disproving" > Cantor's Diagonal Theorem and Special Relativity and proving that 10**603 > is the One True Actual Infinity (I'm not making that last one up!). > > -- > Steven And, all this time, I'd thought it was ((10**603) - 1) that was the highest. Oh, well. -- http://mail.python.org/mailman/listinfo/python-list
Re: Microsoft Hatred FAQ
David Schwartz wrote: > "Aragorn" <[EMAIL PROTECTED]> wrote in message > news:[EMAIL PROTECTED] > > >>>>>>Wrong. The only obligation Microsoft has is to their shareholders. > > >>>>>If you genuinely believe that, you are a psychopath. > > >>A psychopath is someone who lacks ethics and/or the ability to respect >>his fellow human being. They are quite often narcissistic and perverse >>individuals. They make good dictators and successful businessmen. > > > You have provided an excellent refutation. A psychopath would say that > Microsoft's executives only obligations are to themselves. A psychopath > would not consider obligations to fellow human beings important. Believe it > or not, from the point of view of a Microsoft executive, shareholders are > fellow human beings. > > DS > > In my humble, poorly informed opinion, Microsoft SUCKS ASS!!! Their business practices are, in my opinion, a clinic in power mania. They refuse to rewrite their kluged, swiss cheese OS, for fear of a temporary hit to their bottom line. So the world is polluted with this insecure, bomb prone OS. Could anyone not suicidal imagine trying to run the ISS, or a manned Lunar Base on MS Windows? Of course not. Humbly, John -- http://mail.python.org/mailman/listinfo/python-list
filling forms automatically generated using javascript
Is there an automatic way of filling forms that have been generated using javascript? I tried to use python+mechanize but am having trouble with javascript forms. This is the way the form is created: Thanks in advance for your help, --j -- http://mail.python.org/mailman/listinfo/python-list
cache line length of a machine
How do I find out the cache line length of a machine in python? Thanks, --j -- http://mail.python.org/mailman/listinfo/python-list
testing for existence of compilers/executables
I am working with my build system using scons. I would like to test the existence of 'doxygen' or any other compiler/executable in the path (like gcc/icc/...) What is the most efficient way to find this out using python? using scons? Is there a way to list all C/C++/fortran compilers available on a machine using python so that I can give my user an option to select one? Thanks a lot for your help, --j -- http://mail.python.org/mailman/listinfo/python-list
descriptor dilemma
Hello, I was wondering if someone could explain the following situation to me please: >>> class C(object): def f(self): pass >>> c = C() >>> c.f > >>> C.__dict__['f'].__get__(c,C) > >>> c.f == C.__dict__['f'].__get__(c,C) True >>> c.f is C.__dict__['f'].__get__(c,C) False Why do c.f and C.__dict__['f'].__get__(c,C) compare as equal under == but not under *is* ? Thanks, John -- http://mail.python.org/mailman/listinfo/python-list
High resolution sleep (Linux)
The table below shows the execution time for this code snippet as measured by the unix command `time': for i in range(1000): time.sleep(inter) inter execution time ideal 0 0.02 s0 s 1e-44.29 s0.1 s 1e-34.02 s1 s 2e-34.02 s2 s 5e-38.02 s5 s Hence it seems like the 4 s is just overhead and that the time.sleep method treats values below approximately 0.001 as 0. Is there a standard way (or slick trick) to get higher resolution? If it is system dependent it's acceptable but not very nice :) -- http://mail.python.org/mailman/listinfo/python-list
Re: High resolution sleep (Linux)
On 9 Maj, 03:23, John Nagle <[EMAIL PROTECTED]> wrote: > Hendrik van Rooyen wrote: > > "Tim Roberts" <[EMAIL PROTECTED]> wrote" > > It is also possible to keep the timer list sorted by "expiry date", > > and to reprogram the timer to interrupt at the next expiry time > > to give arbitrary resolution, instead of implementing a regular 'tick'. > > Yes, and that's a common feature in real-time operating systems. > If you're running QNX, you can expect that if your high priority > task delays to a given time, you WILL get control back within a > millisecond of the scheduled time. Even tighter timing control > is available on some non-x86 processors. > > Some CPUs even have hardware support for a sorted event list. > The Intel 8061, which ran the engines of most Ford cars in the 1980s, > had that. > > But no way are you going to get consistent timing resolution like that > from Python. It's an interpreter with a garbage collector, after all. > > John Nagle The application the original poster (i.e. me) was interested in was a program that sends ethernet packets at a loosely specified rate. A loop that sends all packets with no sleep in between will send them at a too high rate. Using the default sleep in my Python interpreter sleeps to long, since even a few microseconds add up when you send hundreds of thousands of packets. If the process scheduler deals with another process now and then, it doesn't matter. If it switches to another application between each packet is beeing sent, that's a problem. Anyways, what I need is high resolution sleep, not high resolution timing. Installing a real time OS seems like overkill. (Yes I know, one can also send, say, 50 packets at a time, and then sleep, send 50 more packets, and so on.) -- http://mail.python.org/mailman/listinfo/python-list
Re: Call for advice on how to start PyOpenGL!
On Aug 20, 1:53 am, math2life <[EMAIL PROTECTED]> wrote: > I work with python for two years, are familiar with image processing, > but beginner on PyOpenGL and OpenGL. > > Any advice appreciated! Here's a little "hello world" PyOpenGL program I had lying around that might be useful: http://www.milliwatt-software.com/jmg/files/pyopengl_template.py ---John -- http://mail.python.org/mailman/listinfo/python-list
Is numeric keys of Python's dictionary automatically sorted?
I am coding a radix sort in python and I think that Python's dictionary may
be a choice for bucket.
The only problem is that dictionary is a mapping without order. But I just
found that if the keys are numeric, the keys themselves are ordered in the
dictionary.
part of my code is like this:
radix={}
for i in range(256):
radix[i]=[]
I checked and found that it is ordered like: {1:[], 2:[], 3[],...}
So I can just print out the contents of the dictionary in the desired order
without additional code.
I also tried adding new numeric keys and found that the dictionary's keys
are still ordered.
However, I am not sure whether it is always like this. Can anybody confirm
my finding?
--
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Re: Is numeric keys of Python's dictionary automatically sorted?
Then is there anyway to sort the numeric keys and avoid future implemetation confusion? "Ant" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > On Mar 7, 8:18 pm, "John" <[EMAIL PROTECTED]> wrote: > ... >> However, I am not sure whether it is always like this. Can anybody >> confirm >> my finding? > >>From the standard library docs: > > "Keys and values are listed in an arbitrary order which is non-random, > varies across Python implementations, and depends on the dictionary's > history of insertions and deletions." > > i.e. the behaviour you have discovered is an implementation detail, > and could change in future versions. > -- http://mail.python.org/mailman/listinfo/python-list
any better code to initalize a list of lists?
For my code of radix sort, I need to initialize 256 buckets. My code looks a little clumsy: radix=[[]] for i in range(255): radix.append([]) any better code to initalize this list? -- http://mail.python.org/mailman/listinfo/python-list
Re: any better code to initalize a list of lists?
I want to radix sort non-negative integers that can fit into 32-bits. That will take 4 passes, one for each byte. So, I will need 256 "buckets" The list radix of 256 elements of list is good for this purpose. Your code is much shorter, works and probably takes less time. Thanks! John "Paul Rubin" <http://[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > "John" <[EMAIL PROTECTED]> writes: >> For my code of radix sort, I need to initialize 256 buckets. My code >> looks a >> little clumsy: >> >> radix=[[]] >> for i in range(255): >> radix.append([]) >> >> any better code to initalize this list? > > Typically you'd say > radix = [[] for i in xrange(256)] > > but what are you really doing? This plan to implement radix sorting > sounds a little bit odd, unless it's just an exercise. > > You could also consider using a dictionary instead of a list, > something like: > > radix = defaultdict(list) -- http://mail.python.org/mailman/listinfo/python-list
How to calculate a file of equations in python
Hi, I have a text file which contains math expression, like this 134 +234 +234 (i.e. an operation (e.g. '+) and then a number and then a new line). Can you please tell me what is the easiest way to calculate that file? for example the above example should be = 134 + 234 + 234 = 602. Thank you. -- http://mail.python.org/mailman/listinfo/python-list
Video sharing social network Teenwag seeks great Python hackers we ll wear Python T-shirts at startupschool
Video sharing social network Teenwag seeks great Python hackers we ll wear Python T-shirts at startup school $100K $5K sign on $2k referral http://www.teenwag.com/showvideo/352 -- http://mail.python.org/mailman/listinfo/python-list
how to check the 'content/type' using urlopen
i have the following code to open a URL address, but can you please tell me how can I check the content type of the url response? Thank you. try: req = Request(url, txdata, txheaders) handle = urlopen(req) except IOError, e: print e print 'Failed to open %s' % url return 0; else: data = handle.read() -- http://mail.python.org/mailman/listinfo/python-list
unittest assertRaises Problem
All: Hi. I am an experienced developer (15 yrs), but new to Python and have a question re unittest and assertRaises. No matter what I raise, assertRaises is never successful. Here is the test code: class Foo: def testException(self): raise ValueError class FooTestCase(unittest.TestCase): testTryThis(self): f = Foo() self.assertRaises(ValueError, f.testException()) This fails --- unittest reports the following: FAILED (errors=1) This seems like the most basic thing in the world. I am running Python 2.5 on Windows XP using Eclipse and PyDev Any help appreciated. Thanks, John -- http://mail.python.org/mailman/listinfo/python-list
Re: unittest assertRaises Problem
On Apr 16, 6:35 pm, Jean-Paul Calderone <[EMAIL PROTECTED]> wrote: > On 16 Apr 2007 15:13:42 -0700, john <[EMAIL PROTECTED]> wrote: > > > > >All: > > >Hi. I am an experienced developer (15 yrs), but new to Python and have > >a question re unittest and assertRaises. No matter what I raise, > >assertRaises is never successful. Here is the test code: > > >class Foo: > >def testException(self): > > raise ValueError > > >class FooTestCase(unittest.TestCase): > > > testTryThis(self): > > f = Foo() > > self.assertRaises(ValueError, f.testException()) > > The 2nd argument to assertRaises should be a callable. assertRaises > will call it (so that it can do exception handling), so you shouldn't: > > self.assertRaises(ValueError, f.testException) > > Jean-Paul Steven, Jean-Paul: Thank you both for your answers - worked like a charm! Best, John -- http://mail.python.org/mailman/listinfo/python-list
Cross platform way of finding number of processors on a machine?
Is there a way to find the number of processors on a machine (on linux/ windows/macos/cygwin) using python code (using the same code/cross platform code)? -- http://mail.python.org/mailman/listinfo/python-list
Re: setuptools without unexpected downloads
On Sep 27, 11:42 am, Istvan Albert <[EMAIL PROTECTED]> wrote: > On Sep 26, 2:09 am, Ben Finney <[EMAIL PROTECTED]> wrote: > > > behaviour with a specific invocation of 'setup.py'. But how can I > > disallow this from within the 'setup.py' program, so my users don't > > have to be aware of this unexpected default behaviour? > > I don't have the answer for this, but I can tell you that I myself > dislike the auto-download behavior and I wish it worked differently. > > I've given up on setuptools/easy-install altogether. It is most > annoying to end up with half a dozen unexpected packages. > > The default behavior should be to pop a question with a list of > packages that will be downloaded (and have a flag that bypasses this). > And of course being able to turn off this feature from setup.py. > > i. I think you're exactly right, Istvan. Maybe someone will write a patch for what you suggest. I haven't done any packaging myself, but it would seem to me that another trick users could resort to might be to look at the setup.py setup() function's install_requires arg, and then try to install what's listed there using their own system's package management software. I'm not exactly sure what the --no-deps arg to easy_install does. Does it force the named package to install without its dependencies, or does it give a package listing and then bail out without installing anything? The docs don't seem to specify. ---John -- http://mail.python.org/mailman/listinfo/python-list
Threaded for loop
I want to do something like this: for i = 1 in range(0,N): for j = 1 in range(0,N): D[i][j] = calculate(i,j) I would like to now do this using a fixed number of threads, say 10 threads. What is the easiest way to do the "parfor" in python? Thanks in advance for your help, --j -- http://mail.python.org/mailman/listinfo/python-list
Re: Threaded for loop
Damn! That is bad news. So even if caclulate is independent for (i,j) and is computable on separate CPUs (parts of it are CPU bound, parts are IO bound) python cant take advantage of this? Surprised, --Tom Paul Rubin wrote: > "John" <[EMAIL PROTECTED]> writes: > > I want to do something like this: > > > > for i = 1 in range(0,N): > > for j = 1 in range(0,N): > >D[i][j] = calculate(i,j) > > > > I would like to now do this using a fixed number of threads, say 10 > > threads. What is the easiest way to do the "parfor" in python? > > It won't help in terms of actual parallelism. Python only lets one > thread run at a time, even on a multi-cpu computer. -- http://mail.python.org/mailman/listinfo/python-list
Re: Threaded for loop
Damn! That is bad news. So even if caclulate is independent for (i,j) and is computable on separate CPUs (parts of it are CPU bound, parts are IO bound) python cant take advantage of this? Surprised, --j Paul Rubin wrote: > "John" <[EMAIL PROTECTED]> writes: > > I want to do something like this: > > > > for i = 1 in range(0,N): > > for j = 1 in range(0,N): > >D[i][j] = calculate(i,j) > > > > I would like to now do this using a fixed number of threads, say 10 > > threads. What is the easiest way to do the "parfor" in python? > > It won't help in terms of actual parallelism. Python only lets one > thread run at a time, even on a multi-cpu computer. -- http://mail.python.org/mailman/listinfo/python-list
Re: Threaded for loop
Thanks. Does it matter if I call shell commands os.system...etc in calculate? Thanks, --j [EMAIL PROTECTED] wrote: > John wrote: > > I want to do something like this: > > > > for i = 1 in range(0,N): > > for j = 1 in range(0,N): > >D[i][j] = calculate(i,j) > > > > I would like to now do this using a fixed number of threads, say 10 > > threads. > > What is the easiest way to do the "parfor" in python? > > > > Thanks in advance for your help, > > As it was already mentioned before threads will not help in terms of > parallelism (only one thread will be actually working). If you want to > calculate this in parallel here is an easy solution: > > import ppsmp > > #start with 10 processes > srv = ppsmp.Server(10) > > f = [] > > for i = 1 in range(0,N): > for j = 1 in range(0,N): > #it might be a little bit more complex if 'calculate' depends on > other modules or calls functions > f.append(srv.submit(calculate, (i,j))) > > for i = 1 in range(0,N): > for j = 1 in range(0,N): > D[i][j] = f.pop(0) > > You can get the latest version of ppsmp module here: > http://www.parallelpython.com/ -- http://mail.python.org/mailman/listinfo/python-list
html + javascript automations = [mechanize + ?? ] or something else?
I have to write a spyder for a webpage that uses html + javascript. I had it written using mechanize but the authors of the webpage now use a lot of javascript. Mechanize can no longer do the job. Does anyone know how I could automate my spyder to understand javascript? Is there a way to control a browser like firefox from python itself? How about IE? That way, we do not have to go thru something like mechanize? Thanks in advance for your help/comments, --j -- http://mail.python.org/mailman/listinfo/python-list
Re: html + javascript automations = [mechanize + ?? ] or something else?
I am curious about the webbrowser module. I can open up firefox using webbrowser.open(), but can one control it? Say enter a login / passwd on a webpage? Send keystrokes to firefox? mouse clicks? Thanks, --j John wrote: > I have to write a spyder for a webpage that uses html + javascript. I > had it written using mechanize > but the authors of the webpage now use a lot of javascript. Mechanize > can no longer do the job. > Does anyone know how I could automate my spyder to understand > javascript? Is there a way > to control a browser like firefox from python itself? How about IE? > That way, we do not have > to go thru something like mechanize? > > Thanks in advance for your help/comments, > --j -- http://mail.python.org/mailman/listinfo/python-list
installing/maintaining modules for multiple versions of python
I have a suse box that has by default python 2.4 running and I have a 2.5 version installed in /reg/python2.5. How do I install new modules for only 2.5 without disturbing the 2.4 default installation. Thanks, --j -- http://mail.python.org/mailman/listinfo/python-list
Re: html + javascript automations = [mechanize + ?? ] or something else?
I tried to install pamie (but I have mostly used python on cygwin on windows). In the section " What will you need to run PAMIE", it says I will need "Mark Hammonds Win32 All" which I can not find. Can anyone tell me how do I install PAMIE? Do I need python for windows that is different from cygwin's python? Thanks, --j ina wrote: > John wrote: > > I have to write a spyder for a webpage that uses html + javascript. I > > had it written using mechanize > > but the authors of the webpage now use a lot of javascript. Mechanize > > can no longer do the job. > > Does anyone know how I could automate my spyder to understand > > javascript? Is there a way > > to control a browser like firefox from python itself? How about IE? > > That way, we do not have > > to go thru something like mechanize? > > > > Thanks in advance for your help/comments, > > --j > > You want pamie, iec or ishybrowser. Pamie is probably the best choice > since it gets patches and updates on a regular basis. > > http://pamie.sourceforge.net/ -- http://mail.python.org/mailman/listinfo/python-list
Re: html + javascript automations = [mechanize + ?? ] or something else?
My python2.5 installation on windows did not come with "win32com".
How do I install/get this module for windows?
Thanks,
--j
Duncan Booth wrote:
> "John" <[EMAIL PROTECTED]> wrote:
>
> > Is there a way
> > to control a browser like firefox from python itself? How about IE?
>
> IE is easy enough to control and you have full access to the DOM:
>
> >>> import win32com
> >>> win32com.client.gencache.EnsureModule('{EAB22AC0-30C1-11CF-A7EB-
> C05BAE0B}', 0, 1, 1)
> 'C:\Python25\lib\site-packages\win32com\gen_py\EAB22AC0-30C1-11CF-A7EB-
> C05BAE0Bx0x1x1.py'>
> >>> IE = win32com.client.DispatchEx('InternetExplorer.Application.1')
> >>> dir(IE)
> ['CLSID', 'ClientToWindow', 'ExecWB', 'GetProperty', 'GoBack', 'GoForward',
> 'GoHome', 'GoSearch', 'Navigate', 'Navigate2', 'PutProperty',
> 'QueryStatusWB', 'Quit', 'Refresh', 'Refresh2', 'ShowBrowserBar', 'Stop',
> '_ApplyTypes_', '__call__', '__cmp__', '__doc__', '__getattr__',
> '__init__', '__int__', '__module__', '__repr__', '__setattr__', '__str__',
> '__unicode__', '_get_good_object_', '_get_good_single_object_', '_oleobj_',
> '_prop_map_get_', '_prop_map_put_', 'coclass_clsid']
> >>> IE.Visible=True
> >>> IE.Navigate("http://plone.org";)
> >>> while IE.Busy: pass
>
> >>> print IE.Document.getElementById("portlet-news").innerHTML
> href="feed://plone.org/news/newslisting/RSS">http://plone.org/rss.gif";> href="http://plone.org/news";>News
>
> ... and so on ...
>
>
> See
> http://msdn.microsoft.com/workshop/browser/webbrowser/reference/objects/int
> ernetexplorer.asp
> for the documentation.
--
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Re: html + javascript automations = [mechanize + ?? ] or somethingelse?
I tried it, didnt work with the python25 distribution msi file that is on python.org But activestate python worked. Now I can open IE using COM. What I am trying to figure out is how to click an x,y coordinate on a page in IE automatically using COM. How about typing something automatically...Any ideas? Thanks, --j Gabriel Genellina wrote: > "John" <[EMAIL PROTECTED]> escribió en el mensaje > news:[EMAIL PROTECTED] > > > My python2.5 installation on windows did not come with "win32com". > > How do I install/get this module for windows? > > Look for the pywin32 package at sourceforge.net > > -- > Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
class explorer for automating IE
I found this class which was written in 2003. http://xper.org/wiki/seminar/InternetExplorerAutomation Is there a better/more complete version around that someone knows of. Thanks, --j -- http://mail.python.org/mailman/listinfo/python-list
Re: class explorer for automating IE
Is there an analogue of IE Mechanize in python? http://search.cpan.org/src/ABELTJE/Win32-IE-Mechanize-0.009/README Thanks, --j On Jan 22, 1:48 am, "John" <[EMAIL PROTECTED]> wrote: > I found this class which was written in 2003. > > http://xper.org/wiki/seminar/InternetExplorerAutomation > > Is there a better/more complete version around that someone knows of. > > Thanks, > --j -- http://mail.python.org/mailman/listinfo/python-list
Re: class explorer for automating IE
The problem is that this does not run javascript code it seems. I got started with pamie, which seems to work till now. Thanks, --j On Jan 22, 2:42 am, Peter Otten <[EMAIL PROTECTED]> wrote: > John wrote: > > Is there an analogue of IE Mechanize in > > python?http://www.google.com/search?q=python%20mechanize&btnI=I%27m+Feeling+... -- http://mail.python.org/mailman/listinfo/python-list
Can somebody give me a python code for this?
Given an array of elements, look at it as a binary tree. Start at the last interior node, and downheap it. Then downheap the previous interior node, and continue in this fashion, up to the root. -- http://mail.python.org/mailman/listinfo/python-list
Re: Can somebody give me a python code for this?
I solved it myself. Don't bother. "John" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Given an array of elements, look at it as a binary tree. Start at the last > interior node, and downheap it. Then downheap the previous interior node, > and continue in this fashion, up to the root. > -- http://mail.python.org/mailman/listinfo/python-list
Re: Newbie Question
Visual Basic is also good. "Reid" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Hello all > > I am just starting to play with programing again as a hobby. I have heard > good things about python. I have not really looked into the language much. > My question is, will python make programs with a gui under windows xp. If it > will do this I will explore the language more, if not I will try some other > language. > > Reid > > -- http://mail.python.org/mailman/listinfo/python-list
How to covert ASCII to integer in Python?
Is there any built in function that converts ASCII to integer or vice versa in Python? Thanks! -- http://mail.python.org/mailman/listinfo/python-list
Re: How to covert ASCII to integer in Python?
I just found ord(c), which convert ascii to integer. Anybody know what the reverse is? "John" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Is there any built in function that converts ASCII to integer or vice versa > in Python? > > Thanks! > > -- http://mail.python.org/mailman/listinfo/python-list
What is the best queue implemetation in Python?
I want to write a code for Breadth First Traveral for Graph, which needs a queue to implement. I wonder that for such a powerful language as Python, whether there is a better and simpler implementation for a traditional FIFO queue? Thanks! -- http://mail.python.org/mailman/listinfo/python-list
Re: What is the best queue implemetation in Python?
Than C or PASCAL I mean, list or dictionary in Python are so powerful than the traditional array. Maybe I can make use of it? "John Machin" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > On Feb 23, 11:12 am, "John" <[EMAIL PROTECTED]> wrote: > > I want to write a code for Breadth First Traveral for Graph, which needs a > > queue to implement. > > > > I wonder that for such a powerful language as Python, whether there is a > > better and simpler implementation for a traditional FIFO queue? > > > > Better and simpler than *WHAT*? > > > > -- http://mail.python.org/mailman/listinfo/python-list
Re: How to output newline or carriage return with optparse
On Nov 8, 12:40 pm, Tim Chase <[EMAIL PROTECTED]> wrote: > > Thanks for the help Tim. I just copied and pasted your code into a > > file in my $PYTHONPATH (IndentedHelpFormatterWithNL.py), but I'm > > getting the following error: > > > class IndentedHelpFormatterWithNL(IndentedHelpFormatter): > > NameError: name 'IndentedHelpFormatter' is not defined > > > I tried adding: from optparse imoport IndentedHelpFormatter into the > > aforementioned file, but no luck again. What am I missing??? > > spelling "import" correctly? :) Also, make sure that, if you've > named your module "IndentedHelpFormatterWithNL.py" that created > your parser with > >parser = OptionParser(... > formatter= > IndentedHelpFormatterWithNL.IndentedHelpFormatterWithNL > ) > > You'll also want to make sure that these two lines: > >from optparse import IndentedHelpFormatter >import textwrap > > are at the top of the IndentedHelpFormatterWithNL.py file, not at > the top of the file importing the IndentedHelpFormatter. > > -tkc That seems to do the trick. I'm sure there are quite a few people out there who have run into this same problem-- I'm glad you're adding it to the patches! -- http://mail.python.org/mailman/listinfo/python-list
Re: python from any command line?
Hi, You need to edit your path variable. (I'm assuming you're using Windows). Go to: Settings > Control Panel > System > Advanced > Environment Variables. Now double click on 'Path' and append ";C:\Python25\" (minus the quotation marks) to the text displayed in the Variable Value box. BW, John -- http://mail.python.org/mailman/listinfo/python-list
popen3 on windows
Hello. Can anyone tell me how to get p.poll() or a workaound to work when
using popen3() on windows? I use python 2.3. I am trying to launch a
command window to execute a command and then check periodically to see if
the command has finished executing. If it has not finished after a given
amount of time, I want to close the process. Is this possible on windows?
p = win32pipe.popen3('command') will create the tuple of files p, but none
have a poll() attribute. p[1].read() will hang up if the command has not
finished. Any suggestions? The other alternative is that I use the above
to start the command and then use another os command to see if my process is
running in the background on windows. If it is, then perhaps I can close it
if it if need be.
Thanks.
--
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printing dots in simple program while waiting
Ok, so this should be a really simple thing to do, but I haven't been able to get it on the first few tries and couldn't find anything after searching a bit. what i want to do is print a 'waiting' statement while a script is working-- the multithreading aspect isn't an issue, the printing on the same line is. i want to print something like: (1sec) working... (2sec) working (3sec) working. where the 'working' line isn't being printed each second, but the dots are being added with time. something like: import time s = '.' print 'working' while True: print s time.sleep(1) however, this doesn't work since it prints: working . . . any suggestions? -- http://mail.python.org/mailman/listinfo/python-list
Re: printing dots in simple program while waiting
On Jan 9, 11:56 am, Martin Marcher <[EMAIL PROTECTED]> wrote:
> John wrote:
> > import time
> > s = '.'
> > print 'working', # Note the "," at the end of the line
> > while True:
> > print s
> > time.sleep(1)
>
> see my comment in the code above...
>
> if that's what you mean
>
> /martin
>
> --http://noneisyours.marcher.namehttp://feeds.feedburner.com/NoneIsYours
>
> You are not free to read this message,
> by doing so, you have violated my licence
> and are required to urinate publicly. Thank you.
Thanks for the input Martin, but I already tried that. If you put a
comma on that line it successfully prints the first '.' on the same
line, but the rest below. Like:
working .
.
.
.
I want:
working..
I have tried the comma thing on the "print s" line ("print s,"), but
then it doesn't print anything at all...
--
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Re: printing dots in simple program while waiting
On Jan 9, 12:14 pm, "Reedick, Andrew" <[EMAIL PROTECTED]> wrote:
> > -Original Message-
> > From: [EMAIL PROTECTED] [mailto:python-
> > [EMAIL PROTECTED] On Behalf Of Martin Marcher
> > Sent: Wednesday, January 09, 2008 11:57 AM
> > To: [EMAIL PROTECTED]
> > Subject: Re: printing dots in simple program while waiting
>
> > John wrote:
>
> > > import time
> > > s = '.'
> > > print 'working', # Note the "," at the end of the line
> > > while True:
> > > print s
> > > time.sleep(1)
>
> > see my comment in the code above...
>
> > if that's what you mean
>
> Bah. The trailing command may prevent the newline, but it appends a
> space whether you want it or not.[1] Use sys.stdout.write('.') instead.
>
> import sys
>
> print "wussy nanny state, tax 'n spend my spaces, liberal comma:"
> for i in range(1, 10):
> print '.',
> print
> print "manly neo-con I know what's Right so keep your government out of
> my strings! print:"
> for i in range(1, 10):
> sys.stdout.write('.')
>
> [1] Which has to be _the_ most annoying feature of Python. *grrr*
>
> *
>
> The information transmitted is intended only for the person or entity to
> which it is addressed and may contain confidential, proprietary, and/or
> privileged material. Any review, retransmission, dissemination or other use
> of, or taking of any action in reliance upon this information by persons or
> entities other than the intended recipient is prohibited. If you received
> this in error, please contact the sender and delete the material from all
> computers. GA625
Thanks for all of the help. This is what ended up working:
import time
import sys
s = '.'
sys.stdout.write( 'working' )
while True:
sys.stdout.write( s )
sys.stdout.flush()
time.sleep(0.5)
--
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matplotlib install error
I'm trying to install matplotlib and currently getting the below error. I searched the group and google and couldn't find anything similar... Any ideas? Thanks in advance! src/ft2font.cpp: In member function 'Py::Object Glyph::get_path(FT_FaceRec_* const&)': src/ft2font.cpp:441: error: 'FT_CURVE_TAG_CUBIC' was not declared in this scope src/ft2font.cpp:444: error: 'FT_CURVE_TAG_CONIC' was not declared in this scope src/ft2font.cpp:447: error: 'FT_CURVE_TAG_ON' was not declared in this scope src/ft2font.cpp:487: error: 'FT_CURVE_TAG_ON' was not declared in this scope src/ft2font.cpp:500: error: 'FT_CURVE_TAG_CONIC' was not declared in this scope src/ft2font.cpp:572: error: 'FT_CURVE_TAG_CUBIC' was not declared in this scope src/ft2font.cpp: In member function 'Py::Object FT2Font::set_text(const Py::Tuple&, const Py::Dict&)': src/ft2font.cpp:983: error: 'FT_KERNING_DEFAULT' was not declared in this scope src/ft2font.cpp: In member function 'Py::Object FT2Font::get_ps_font_info(const Py::Tuple&)': src/ft2font.cpp:1428: error: 'PS_FontInfoRec' was not declared in this scope src/ft2font.cpp:1428: error: expected `;' before 'fontinfo' src/ft2font.cpp:1430: error: 'fontinfo' was not declared in this scope src/ft2font.cpp:1430: error: 'FT_Get_PS_Font_Info' was not declared in this scope src/ft2font.cpp: In function 'void initft2font()': src/ft2font.cpp:1884: error: 'FT_KERNING_DEFAULT' was not declared in this scope src/ft2font.cpp:1885: error: 'FT_KERNING_UNFITTED' was not declared in this scope src/ft2font.cpp:1886: error: 'FT_KERNING_UNSCALED' was not declared in this scope src/ft2font.cpp:1905: error: 'FT_LOAD_NO_AUTOHINT' was not declared in this scope src/ft2font.cpp:1906: error: 'FT_LOAD_TARGET_NORMAL' was not declared in this scope src/ft2font.cpp:1907: error: 'FT_LOAD_TARGET_LIGHT' was not declared in this scope src/ft2font.cpp:1908: error: 'FT_LOAD_TARGET_MONO' was not declared in this scope src/ft2font.cpp:1909: error: 'FT_LOAD_TARGET_LCD' was not declared in this scope src/ft2font.cpp:1910: error: 'FT_LOAD_TARGET_LCD_V' was not declared in this scope error: command 'gcc' failed with exit status 1 -- http://mail.python.org/mailman/listinfo/python-list
Re: matplotlib install error
> Is thate really all of the error? It hints on a missing include, which > will be mentioned earlier. > > Diez platform: linux2 REQUIRED DEPENDENCIES numpy: 1.0.3.1 freetype2: found, but unknown version (no pkg-config) OPTIONAL BACKEND DEPENDENCIES libpng: found, but unknown version (no pkg-config) Tkinter: Tkinter: 50704, Tk: 8.3, Tcl: 8.3 wxPython: no * wxPython not found Gtk+: no * Building for Gtk+ requires pygtk; you must be able * to "import gtk" in your build/install environment Qt: no Qt4: no Cairo: no OPTIONAL DATE/TIMEZONE DEPENDENCIES datetime: present, version unknown dateutil: matplotlib will provide pytz: matplotlib will provide OPTIONAL USETEX DEPENDENCIES dvipng: no ghostscript: 6.52 latex: 3.14159 pdftops: 1.00 EXPERIMENTAL CONFIG PACKAGE DEPENDENCIES configobj: matplotlib will provide enthought.traits: matplotlib will provide [Edit setup.cfg to suppress the above messages] running build running build_py copying lib/matplotlib/mpl-data/matplotlibrc -> build/lib.linux- i686-2.5/matplotlib/mpl-data copying lib/matplotlib/mpl-data/matplotlib.conf -> build/lib.linux- i686-2.5/matplotlib/mpl-data running build_ext building 'matplotlib.ft2font' extension gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict- prototypes -fPIC -I/usr/local/include -I/usr/include -I. -I/usr/local/ include/freetype2 -I/usr/include/freetype2 -I./freetype2 -I/data1/ szscm1/usr/local/include/python2.5 -c src/ft2font.cpp -o build/ temp.linux-i686-2.5/src/ft2font.o cc1plus: warning: command line option "-Wstrict-prototypes" is valid for Ada/C/ObjC but not for C++ In file included from /data1/szscm1/usr/local/include/python2.5/ Python.h:8, from ./CXX/WrapPython.h:47, from ./CXX/Extensions.hxx:48, from src/ft2font.h:18, from src/ft2font.cpp:2: /data1/szscm1/usr/local/include/python2.5/pyconfig.h:932:1: warning: "_POSIX_C_SOURCE" redefined In file included from /data1/qzcpfl/gcc-build/lib/gcc/i686-pc-linux- gnu/4.2.1/../../../../include/c++/4.2.1/i686-pc-linux-gnu/bits/ os_defines.h:44, from /data1/qzcpfl/gcc-build/lib/gcc/i686-pc-linux- gnu/4.2.1/../../../../include/c++/4.2.1/i686-pc-linux-gnu/bits/c+ +config.h:41, from /data1/qzcpfl/gcc-build/lib/gcc/i686-pc-linux- gnu/4.2.1/../../../../include/c++/4.2.1/iosfwd:44, from /data1/qzcpfl/gcc-build/lib/gcc/i686-pc-linux- gnu/4.2.1/../../../../include/c++/4.2.1/ios:43, from /data1/qzcpfl/gcc-build/lib/gcc/i686-pc-linux- gnu/4.2.1/../../../../include/c++/4.2.1/istream:44, from /data1/qzcpfl/gcc-build/lib/gcc/i686-pc-linux- gnu/4.2.1/../../../../include/c++/4.2.1/sstream:44, from src/ft2font.cpp:1: /usr/include/features.h:131:1: warning: this is the location of the previous definition src/ft2font.cpp: In member function 'Py::Object Glyph::get_path(FT_FaceRec_* const&)': src/ft2font.cpp:441: error: 'FT_CURVE_TAG_CUBIC' was not declared in this scope src/ft2font.cpp:444: error: 'FT_CURVE_TAG_CONIC' was not declared in this scope src/ft2font.cpp:447: error: 'FT_CURVE_TAG_ON' was not declared in this scope src/ft2font.cpp:487: error: 'FT_CURVE_TAG_ON' was not declared in this scope src/ft2font.cpp:500: error: 'FT_CURVE_TAG_CONIC' was not declared in this scope src/ft2font.cpp:572: error: 'FT_CURVE_TAG_CUBIC' was not declared in this scope src/ft2font.cpp: In member function 'Py::Object FT2Font::set_text(const Py::Tuple&, const Py::Dict&)': src/ft2font.cpp:983: error: 'FT_KERNING_DEFAULT' was not declared in this scope src/ft2font.cpp: In member function 'Py::Object FT2Font::get_ps_font_info(const Py::Tuple&)': src/ft2font.cpp:1428: error: 'PS_FontInfoRec' was not declared in this scope src/ft2font.cpp:1428: error: expected `;' before 'fontinfo' src/ft2font.cpp:1430: error: 'fontinfo' was not declared in this scope src/ft2font.cpp:1430: error: 'FT_Get_PS_Font_Info' was not declared in this scope src/ft2font.cpp: In function 'void initft2font()': src/ft2font.cpp:1884: error: 'FT_KERNING_DEFAULT' was not declared in this scope src/ft2font.cpp:1885: error: 'FT_KERNING_UNFITTED' was not declared in this scope src/ft2font.cpp:1886: error: 'FT_KERNING_UNSCALED' was not declared in this scope src/ft2font.cpp:1905: error: 'FT_LOAD_NO_AUTOHINT' was not declared in this scope src/ft2font.cpp:1906: error: 'FT_LOAD_TARGET_NORMAL' was not declared in this scope src/ft2font.cpp:1907: error: 'FT_LOAD_TARGET_LIGHT' was not declared in this scope src/ft2font.cpp:1908: error: 'FT_LOAD_TARG
Topographical sorting
I'm working on a project involving the topographical sorting of partially
ordered sets (posets), using the poset (S, |), where S is the set of
integers <= n. Ultimately, I need to determine all possible topographical
sorts for whatever n happens to be. This requires me to be able to build the
ordered set and then traverse it. The majority of my work is done, and I am
now stuck on figuring out how to determine the number of total sorts
possible. If you are unfamiliar with posets, here is a quick bit of
information about them:
Say that n=6. This means my set of data is {1, 2, 3, 4, 5, 6}. My condition
is |, or the divisor symbol. So I would construct my set with the following
relationship:
1 has all primes as its neighbors
2 divides 4 and 6
3 divides 6
1 does not divide 4 or 6, as posets are transitive, meaning if 1/2 and 2/4,
then it can be said that 1/4. This can be much better represented in this
simple diagram: http://i26.tinypic.com/2ywejwo.jpg
Now, on to my problem. Topographical sorting essentially involves removing
the minimal element in a set (1), and then arbitrarily choosing the next
minimal element and removing it as well. So, after removing 1, one could
remove 5, then 2, then 3, then 4, then 6, resulting in the sort of 15234.
One could also get 123456. There are a number of sorts possible. This is
where I am currently stuck, attempting to implement an algorithm that finds
all possible sorts. I have looked at the topographical pseudocode available
at Wikipedia, but this does not apply - it finds one topographical sort, not
all.
If anyone can offer me some guidance as to where to go from here, it would
be greatly appreciated.
--
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Re: Reading text file with wierd file extension?
On Feb 2, 7:57 pm, Mike Driscoll wrote:
> On Feb 2, 8:08 pm, Lionel wrote:
>
>
>
> > On Feb 2, 5:40 pm, "Rhodri James" wrote:
>
> > > [Quoting restored for reduced
>
> > > On Mon, 02 Feb 2009 22:33:50 -, Lionel wrote:
> > > > On Feb 2, 2:01 pm, Mike Driscoll wrote:
> > > >> On Feb 2, 3:43 pm, Lionel wrote:
> > > >> > On Feb 2, 1:07 pm, "Diez B. Roggisch" wrote:
>
> > > >> >> This is written very slowly, so you can read it better:
>
> > > >> > Please post without sarcasm.
>
> > > On Usenet? You'll be wanting single unequivocal answers next!
>
> > > Seriously though, you had been asked several times for the traceback,
> > > so that we could stop guessing and tell you for sure what was going
> > > on, and you hadn't provided it. Diez's mild sarcasm was not uncalled-
> > > for. The fact that you didn't have a traceback partially excuses you,
> > > but it would have helped if you'd said so.
>
> > > >> > This is the output from my Python shell:
>
> > > >> > >>> DatafilePath = "C:\\C8Example1.slc"
> > > >> > >>> ResourcefilePath = DatafilePath + ".rsc"
> > > >> > >>> DatafileFH = open(DatafilePath)
> > > >> > >>> ResourceFh = open(ResourcefilePath)
> > > >> > >>> DatafilePath
>
> > > >> > 'C:\\C8Example1.slc'>>> ResourcefilePath
>
> > > >> > 'C:\\C8Example1.slc.rsc'
>
> > > >> > It seems to run without trouble. However, here is the offending code
> > > >> > in my class (followed by console output):
>
> > > >> > class C8DataType:
>
> > > >> > def __init__(self, DataFilepath):
>
> > > >> > try:
> > > >> > DataFH = open(DataFilepath, "rb")
>
> > > >> > except IOError, message:
> > > >> > # Error opening file.
> > > >> > print(message)
> > > >> > return None
>
> > > You're catching the IOError, presumably so that you can fail
> > > gracefully elsewhere. This may not be a particularly good
> > > idea, and in any case it stops the exception reaching the
> > > console where it would cause the traceback to be displayed.
> > > More on this later.
>
> > > >> > ResourceFilepath = DataFilepath + ".src"
>
> > > As other people have pointed out, you've got a typo here.
>
> > > >> > print(DataFilepath)
> > > >> > print(ResourceFilepath)
>
> > > >> > # Try to open resource file, catch exception:
> > > >> > try:
> > > >> > ResourceFH = open(ResourceFilepath)
>
> > > >> > except IOError, message:
> > > >> > # Error opening file.
> > > >> > print(message)
> > > >> > print("Error opening " + ResourceFilepath)
> > > >> > DataFH.close()
> > > >> > return None
>
> > > [Huge amounts of text trimmed]
>
> > > Fair enough, you're catching the IOError so that you can
> > > ensure that DataFH is closed. Unfortunately this concealed
> > > the traceback information, which would have made it more
> > > obvious to you what people were talking about. Given that
> > > this has rather stuffed your C8DataType instance, you
> > > might want to think about re-raising the exception after
> > > you've closed DataFH and letting the outer layers deal
> > > with it in a more appropriate fashion.
>
> > > Incidentally, this code isn't going to do anything useful
> > > for you anyway even after you've fixed the typo. DataFH
> > > and ResourceFH are both local variables to __init__ and
> > > will be tossed away when it finishes executing. If you
> > > want to use them later, make them self.data_fh and
> > > self.resource_fh respectively.
>
> > > (PEP 8 recommends that you use lower_case_with_underscores
> > > for variable or attribute names, and leave MixedCase for
> > > class names.)
>
> > > --
> > > Rhodri James *-* Wildebeeste Herder to the Masses- Hide quoted text -
>
> > > - Show quoted text -
>
> > Very good comments. I'll be implementing some of your suggestions, to
> > be sure. Thanks Rhodri.
>
> You could check to see if the file actually exists using os.path.exists
> (). I've found that if I use that in combination with printing the
> path variable, I sometimes discover that either my file doesn't exist
> or that my path is slightly wrong and thus Python doesn't think my
> file exists...
>
> Mike
It's weird, right? But thanks to Grant and Rhodri, from another
newbie (me)
and to everyone else who helps us out.
John (the "how to ask questions" text is priceless)
--
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importing a class thru a variable?
Hi, This is probably a question of questionable sanity, due to the fact I don't think I can explain this well. I'd like to have a script set up such that it imports a class that is named in the command line arguments as the first argument to the script. Let's say I have a script, command.py, and I'd like to run it like this: command.py class_id_like_to_import --option1 value1 --option2 value2 where 'class_id_like_to_import' is a class name and --option1/value1 and so on are arguments that get passed to that class. I know that trying to do something like: classname = sys.argv[1] import classname doesn't exactly work. I've tried to google for something like this, and search the old posts to this newsgroup and haven't quite found anything resembling what I'm looking for. Thanks in advance, and apologies if this has been answered before... -- http://mail.python.org/mailman/listinfo/python-list
Re: can't install new modules after updating python
On Apr 18, 9:00 am, a...@pythoncraft.com (Aahz) wrote: > In article > , > > Generally speaking, you should never directly update the system Python; > most Linux systems these days rely on Python for their operation. > Instead, you install an additional copy of Python, and you cannot use > your OS package management to install modules; just install the modules > manually. Agreed. I tend to keep my own Python installation in ~/opt, and then use the usual `python setup.py install` to install modules. You just need to make sure you have $HOME/opt/py/bin in your $PATH before the system python (or else explicitly specify `~/opt/py/bin/python setup.py install` when you install modules). If your *system* Python needs modules, you install those with your OS package management utility. -- http://mail.python.org/mailman/listinfo/python-list
Re: iterate to make multiple variables?
On Apr 19, 11:11 pm, Tairic wrote: > Hi, I'm somewhat new to programming and especially to python. Today I > was attempting to make a sudoku-solver, and I wanted to put numbers > into sets call box1, box2, ... box9, so that I could check new values > against the boxes > > I ended up declaring the boxes like this > box1 = set([]) > box2 = set([]) > .. > .. > box9 = set([]) > > Is there a way for me instead to generate these variables (box1 to > box9) as empty sets instead of just writing them all out? Some way to > iterate and generate them? > > Sorry if this is confusing, thanks in advance. -- http://mail.python.org/mailman/listinfo/python-list
Re: iterate to make multiple variables?
On Apr 19, 11:11 pm, Tairic wrote:
> Hi, I'm somewhat new to programming and especially to python. Today I
> was attempting to make a sudoku-solver, and I wanted to put numbers
> into sets call box1, box2, ... box9, so that I could check new values
> against the boxes
>
> I ended up declaring the boxes like this
> box1 = set([])
> box2 = set([])
> ..
> ..
> box9 = set([])
>
> Is there a way for me instead to generate these variables (box1 to
> box9) as empty sets instead of just writing them all out? Some way to
> iterate and generate them?
>
> Sorry if this is confusing, thanks in advance.
There's a key to answering you. You pointed it out in your question,
when you say '...if
this is confusing, ...'. Most of programming involves writing down
the stuff we need so that
we see it in less-confusing ways. It's called "stepwise refinement"
by the book publishers.
What it means is that you try to think about your problem, mess about
with the tools at hand,
(lists [], sets () , sequences () ,strings " ", and dictionaries
{ : }), and see what might
do for the job. How are they different. You ought to monkey around
with each of them, on your own--don't ask for help, because we can't
help as much as you can help yourself. You'll understand much more,
in the end, besides. Then, when you come back, with some code, even
some code that doesn't work worth a damn, if it's halfway reasonable,
we'll be able to show you where your slight misstep was--but often,
you'll get stuff working, and it's really important that you start to
do it. Mess with the effing interpreter, mess with it often, and look
at different examples, and try them all out. Truly.
--
http://mail.python.org/mailman/listinfo/python-list
What is the difference between init and enter?
I'm okay with init, but it seems to me that enter is redundant since it appears that anything you want to execute in enter can be done in init. -- http://mail.python.org/mailman/listinfo/python-list
so funny...
http://sitscape.com/topic/funny Just keep hit the "Surprise->" button there for amazing fun. Click on "channel" will show you other topics, lots of fun! -- http://mail.python.org/mailman/listinfo/python-list
Re: [Tutor] python gui
W W wrote: > On Wed, Jun 11, 2008 at 10:18 AM, Gabriela Soares > <[EMAIL PROTECTED]> wrote: > > How ? > > That's an extremely broad question, and shows little initiative, and > offers little information. Most of us are happy to help you solve > problems for free, but few, if any, are willing to write your programs > for free. > Ah, come on, it's not that broad, and easy to answer!! "With a lot of patience!" -- http://mail.python.org/mailman/listinfo/python-list
newbie question
I'm working with the HTMLParser module and have implemented HTMLParser.handle_starttag() and I see there is a separate handle_data method (which can be implemented), but I am not clear how to tie this together with a given start tag, so I only get the data I want. For example, I'd like to get a handle on the character data ( the number 1) immediately after the following start tag 1 . . . Any ideas? -- http://mail.python.org/mailman/listinfo/python-list
Re: newbie question
Thanks for the tip! -- http://mail.python.org/mailman/listinfo/python-list
F2PY changing integers to arrays???
I have a simple module which performs basic operations on plot3d files
(below). I wrapped like:
f2py --fcompiler=gfortran -m plot3d -c prec.f90 plot3d.f90
That seems to work fine, but i get some unexpected results...
>>> from plot3d import plot3d as p3
>>> dir(p3)
['imax', 'jmax', 'kmax', 'mg', 'prc', 'printall', 'readit', 'writeit',
'writeit2d']
>>> p3.readit( "mesh.xrtz.dat", "FORMATTED", ".TRUE." )
>>> p3.imax
array(409)
"409" is correct, but "imax" is declared as an INTEGER in fortran and
now it's an array in python??? Any ideas?
# prec.f90
MODULE prec
IMPLICIT NONE
INTEGER, PARAMETER :: single = SELECTED_REAL_KIND(p=6,r=37)
INTEGER, PARAMETER :: double = SELECTED_REAL_KIND(p=15,r=200)
END MODULE prec
# plot3d.f90
MODULE PLOT3D
USE prec
IMPLICIT NONE
INTEGER, PARAMETER :: prc=single
REAL(prc), ALLOCATABLE, DIMENSION(:,:,:,:) :: x, y, z
INTEGER :: mg, imax, jmax, kmax
CONTAINS
!--
SUBROUTINE READIT( fname, ftype, fmg )
! reads the plot3d, formatted, mg file in xyz
IMPLICIT NONE
CHARACTER(len=20), INTENT(IN) :: fname, ftype
LOGICAL :: fmg
INTEGER :: i, j, k, n, f=1
SELECT CASE (ftype)
CASE ('FORMATTED')
OPEN( UNIT=f, FILE=fname, STATUS='OLD', ACTION='READ',
FORM=ftype )
IF (fmg) READ(f,*) mg ! only read if multigrid
READ(f,*) imax, jmax, kmax
ALLOCATE( x(mg, imax, jmax, kmax) )
ALLOCATE( y(mg, imax, jmax, kmax) )
ALLOCATE( z(mg, imax, jmax, kmax) )
READ(f,*) x(n,
i,j,k),i=1,imax),j=1,jmax),k=1,kmax),n=1,mg), &
y(n,
i,j,k),i=1,imax),j=1,jmax),k=1,kmax),n=1,mg), &
z(n,
i,j,k),i=1,imax),j=1,jmax),k=1,kmax),n=1,mg)
CASE ('UNFORMATTED')
OPEN( UNIT=f, FILE=fname, STATUS='OLD', ACTION='READ',
FORM=ftype )
IF (fmg) READ(f) mg ! only read if multigrid
READ(f) imax, jmax, kmax
ALLOCATE( x(mg, imax, jmax, kmax) )
ALLOCATE( y(mg, imax, jmax, kmax) )
ALLOCATE( z(mg, imax, jmax, kmax) )
READ(f) x(n,
i,j,k),i=1,imax),j=1,jmax),k=1,kmax),n=1,mg), &
y(n,
i,j,k),i=1,imax),j=1,jmax),k=1,kmax),n=1,mg), &
z(n,
i,j,k),i=1,imax),j=1,jmax),k=1,kmax),n=1,mg)
CASE DEFAULT
WRITE(*,*) 'filetype not supported in '
STOP
END SELECT
CLOSE(f)
END SUBROUTINE READIT
END MODULE PLOT3D
--
http://mail.python.org/mailman/listinfo/python-list
Re: F2PY changing integers to arrays???
Hmmm... I didn't even try that... I thought this might have caused problems down the road passing this var to other classes, etc., but i guess not! Thanks. -- http://mail.python.org/mailman/listinfo/python-list
catching exceptions from fortran
I wrapped some fortran code using F2PY and need to be able to catch fortran runtime errors to run the following: # "grid" is a wrapped fortran module # no runtime errors incurred when run with the correct inputs for filetype #--- def readGrid( self, coord='xyz' ): mg = ( '.FALSE.', '.TRUE.' ) form = ( 'FORMATTED', 'UNFORMATTED' ) success = False for m in mg: for f in form: try: if coord == 'xyz': self.grid.readxyz( self.filename, f, m ) success = True elif coord == 'xyrb': self.grid.readxyrb( self.filename, f, m ) success = True else: import sys print 'gridtype "' + str(coord) + '" not supported. ' \ + '' except: continue if not success: import sys print 'gridfile "' + str(self.filename) + '" not read in any recognized format' \ + ' ' # basically, what i want to happen is to try to run 'something' with the wrapped fortran code and if that doesn't work (error encountered, etc.) try something else. is there an easier way to go about doing this? is there something i'm missing about catching exceptions here? Thanks in advance! -- http://mail.python.org/mailman/listinfo/python-list
sending a text message via webpage button
Can anyone help me in coding a script that can send a text message typed to the script like. sendmessage 6318019564 "test message" What I want to do is fill up this information on this webpage http://www.cingularme.com/do/public/send;jsessionid=aKDwXM1S0Reh and click the submit button using the python script. Any ideas on how to do this or if someone has already done this? Thanks, --j -- http://mail.python.org/mailman/listinfo/python-list
counting number of (overlapping) occurances
I have two strings S1 and S2. I want to know how many times S2 occurs inside S1. For instance if S1 = "" and S2 = "AA" then the count is 3. Is there an easy way to do this in python? I was trying to use the "count" function but it does not do overlapping counts it seems. Thanks, --j -- http://mail.python.org/mailman/listinfo/python-list
Re: counting number of (overlapping) occurances
Thanks a lot, This works but is a bit slow, I guess I'll have to live with it. Any chance this could be sped up in python? Thanks once again, --j -- http://mail.python.org/mailman/listinfo/python-list
instantiate a class with a variable
Hi, is it possible to instantiate a class with a variable. example class foo: def method(self): pass x='foo' Can I use variable x value to create an instance of my class? Thanks, John -- http://mail.python.org/mailman/listinfo/python-list
Re: instantiate a class with a variable
Thanks for the help, this was exactly what I needed. Working Great
bruno at modulix wrote:
> John wrote:
> > Hi, is it possible to instantiate a class with a variable.
> >
> > example
> >
> > class foo:
> > def method(self):
> > pass
> >
> > x='foo'
> >
> > Can I use variable x value to create an instance of my class?
>
> You got examples using string 'foo', now if all you need is to store or
> pass around the class, just use it as any other object (yes, classes
> *are* objects):
>
> class Foo(object): pass
>
> x = Foo
>
> f = x()
> assert type(f) is Foo
>
>
> --
> bruno desthuilliers
> python -c "print '@'.join(['.'.join([w[::-1] for w in p.split('.')]) for
> p in '[EMAIL PROTECTED]'.split('@')])"
--
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Python (and me) getting confused finding keys
Hi there, I have a rather lengthy program that troubles me for quite some time. After some debugging, I arrived at the following assertion error: for e in edges.keys(): assert edges.has_key(e) Oops!? Is there ANY way that something like this can possibly happen? Cheers, John -- http://mail.python.org/mailman/listinfo/python-list
Re: Python (and me) getting confused finding keys
> another thread can remove the key prior to the has_key call; or perhaps > edges isn't a real dictionary? > of course. But unless there is a way of using threading without being aware of it, this is not the case. Also, edges is definitely a dict (has been declared some lines before, and no obscure functions have been called in the meantime, just some adding to edges). Python would also fail on edges.keys() if edges wasn't a dict... cheers, john -- http://mail.python.org/mailman/listinfo/python-list
