matplotlib on osx 10.6
hello i try to install matplotlib on osx 10.6 , i have also installed freetype libpng and numpy but i get this error: BUILDING MATPLOTLIB matplotlib: 1.1.0 python: 2.6.1 (r261:67515, Jun 24 2010, 21:47:49) [GCC 4.2.1 (Apple Inc. build 5646)] platform: darwin REQUIRED DEPENDENCIES numpy: 1.2.1 freetype2: found, but unknown version (no pkg-config) * WARNING: Could not find 'freetype2' headers in any * of '.', './freetype2'. OPTIONAL BACKEND DEPENDENCIES libpng: found, but unknown version (no pkg-config) * Could not find 'libpng' headers in any of '.' Tkinter: Tkinter: 67083, Tk: 8.5, Tcl: 8.5 Gtk+: no * Building for Gtk+ requires pygtk; you must be able * to "import gtk" in your build/install environment Mac OS X native: yes Qt: no Qt4: Qt: 4.7.0, PyQt4: 4.8.2 Cairo: no OPTIONAL DATE/TIMEZONE DEPENDENCIES datetime: present, version unknown dateutil: present, version unknown pytz: matplotlib will provide adding pytz OPTIONAL USETEX DEPENDENCIES dvipng: no ghostscript: /bin/sh: gs: command not found latex: no [Edit setup.cfg to suppress the above messages] pymods ['pylab'] packages ['matplotlib', 'matplotlib.backends', 'matplotlib.backends.qt4_editor', 'matplotlib.projections', 'matplotlib.testing', 'matplotlib.testing.jpl_units', 'matplotlib.tests', 'mpl_toolkits', 'mpl_toolkits.mplot3d', 'mpl_toolkits.axes_grid', 'mpl_toolkits.axes_grid1', 'mpl_toolkits.axisartist', 'matplotlib.sphinxext', 'matplotlib.tri', 'matplotlib.delaunay', 'pytz'] running build running build_py copying lib/matplotlib/mpl-data/matplotlibrc -> build/lib.macosx-10.6- universal-2.6/matplotlib/mpl-data copying lib/matplotlib/mpl-data/matplotlib.conf -> build/ lib.macosx-10.6-universal-2.6/matplotlib/mpl-data running build_ext building 'matplotlib.ft2font' extension gcc-4.2 -fno-strict-aliasing -fno-common -dynamic -DNDEBUG -g -fwrapv - Os -Wall -DENABLE_DTRACE -arch i386 -arch ppc -arch x86_64 -pipe - DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API -DPYCXX_ISO_CPP_LIB=1 -I/System/ Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/ numpy/core/include -I. -I/System/Library/Frameworks/Python.framework/ Versions/2.6/Extras/lib/python/numpy/core/include/freetype2 -I./ freetype2 -I/System/Library/Frameworks/Python.framework/Versions/2.6/ include/python2.6 -c src/ft2font.cpp -o build/temp.macosx-10.6- universal-2.6/src/ft2font.o In file included from src/ft2font.h:16, from src/ft2font.cpp:3: /usr/local/include/ft2build.h:56:38: error: freetype/config/ ftheader.h: No such file or directory In file included from src/ft2font.cpp:3: src/ft2font.h:17:10: error: #include expects "FILENAME" or src/ft2font.h:18:10: error: #include expects "FILENAME" or src/ft2font.h:19:10: error: #include expects "FILENAME" or src/ft2font.h:20:10: error: #include expects "FILENAME" or src/ft2font.h:21:10: error: #include expects "FILENAME" or In file included from src/ft2font.cpp:3: src/ft2font.h:35: error: ‘FT_Bitmap’ has not been declared src/ft2font.h:35: error: ‘FT_Int’ has not been declared src/ft2font.h:35: error: ‘FT_Int’ has not been declared src/ft2font.h:91: error: expected ‘,’ or ‘...’ before ‘&’ token src/ft2font.h:91: error: ISO C++ forbids declaration of ‘FT_Face’ with no type src/ft2font.h:138: error: ‘FT_Face’ does not name a type src/ft2font.h:139: error: ‘FT_Matrix’ does not name a type src/ft2font.h:140: error: ‘FT_Vector’ does not name a type src/ft2font.h:141: error: ‘FT_Error’ does not name a type src/ft2font.h:142: error: ‘FT_Glyph’ was not declared in this scope src/ft2font.h:142: error: template argument 1 is invalid src/ft2font.h:142: error: template argument 2 is invalid src/ft2font.h:143: error: ‘FT_Vector’ was not declared in this scope src/ft2font.h:143: error: template argument 1 is invalid src/ft2font.h:143: error: template argument 2 is invalid src/ft2font.h:149: error: ‘FT_BBox’ does not name a type src/ft2font.cpp:51: error: ‘FT_Library’ does not name a type src/ft2font.cpp:114: error: variable or field ‘draw_bitmap’ declared void src/ft2font.cpp:114: error: ‘FT_Bitmap’ was not declared in this scope src/ft2font.cpp:114: error: ‘bitmap’ was not declared in this scope src/ft2font.cpp:115: error: ‘FT_Int’ was not declared in this scope src/ft2font.cpp:116: error: ‘FT_Int’ was not declared in this scope /System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/ python/numpy/core/include/numpy/__multiarray_api.h:958: warning: ‘int _import_array()’ defined but not used In file included from src/ft2font.h:16,
Re: Deleting files on a shared server
On 07/10/2011 02:14, Josh English wrote: This is a follow-up to some questions I posted a month or two ago. I have two programs running on various Windows XP boxes, sharing several resource files on a Windows 2003 server. It's a mapped drive on the workstations to a shared folder. I am using a locking utility that works by creating ".lock" files in the shared folder and deleting those files when the program is done with them. To delete the files, I am using os.unlink. One lock file refuses to disappear, even though I have code at both application startup and shutdown (on the OnInit and OnExit methods to the wxPython Application object) that hunts down .lock files and deletes them. Assuming that your code paths succeed and that the unlink actually happens, it is possible for files to continue to exist after they have been successfully deleted. This happens if another process has opened them with share-delete mode; typically this will be a virus checker or a process like the TortoiseSVN cache (or its counterparts for other VCS). The file won't actually disappear until the last handle on it is released. TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: database connection
En Fri, 07 Oct 2011 02:18:04 -0300, masood shaik escribió: can u please tell me how we can connect to database without changing the permission of db file using sqlite3 The OS user who executes the Python script must have read (and write, usually) access to the database file - *any* OS user who can read the database file can connect to it. sqlite does not have internal users, and does not implement GRANT/REVOKE statements. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: How to inspect slot wrappers arguments in Python?
En Sat, 01 Oct 2011 12:13:45 -0300, julian bilcke
escribió:
I would like to get the list of parameters I need to initialize an AST
node.
I'm trying to use the `inspect` module, however it seems I can't use it
on a
built-in (native?) class, or else I misunderstood. [...]
>>> import inspect
>>> import ast
>>> inspect.getargspec(ast.If.__init__)
Traceback (most recent call last):
File "", line 1, in
File
"/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/inspect.py",
line 813, in getargspec
raise TypeError('{!r} is not a Python function'.format(func))
TypeError: is not a
Python function
I am wondering if there is another way to get these parameters
automatically? (ie. without compiling myself a dict)
I'm afraid there is no way; this kind of introspection does not work for
functions written in C. The function itself usually has a generic
signature resembling (*args, **kw), and its parameters are usually
unpacked calling a suitable variant of PyArg_ParseXXX. The information
about the number and type of expected arguments is encoded in its 'format'
parameter, and is not stored anywhere.
--
Gabriel Genellina
--
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Thread handling issue
I'm wondering what the best solution for this problem is. I've got a wxpython app, in one part a user makes some selections then opens a dialog to select where to output. At which point the app starts a thread processing their selection while they're choosing an output location, hopefully ready for when they're done. My problem is if the user doesn't select an output location and cancels the dialog to go back to the selection I want to terminate the thread to avoid the user opening and closing the output selection firing off a ton of threads. As there's no inbuilt way of killing threads I was wondering the best way to prevent this? -- http://mail.python.org/mailman/listinfo/python-list
Re: Thread handling issue
On 07/10/2011 09:29, Paul wrote: I'm wondering what the best solution for this problem is. I've got a wxpython app, in one part a user makes some selections then opens a dialog to select where to output. At which point the app starts a thread processing their selection while they're choosing an output location, hopefully ready for when they're done. My problem is if the user doesn't select an output location and cancels the dialog to go back to the selection I want to terminate the thread to avoid the user opening and closing the output selection firing off a ton of threads. As there's no inbuilt way of killing threads I was wondering the best way to prevent this? The most common approach is to have the thread monitor an event which is set if, for example, the user cancels. The thread may of course have to wait, for example, for a long-running database query to complete before it can discover that its time has been wasted :) The exact mechanism will depend on how your code is structured, what the thread is doing, and how it's passing anything back to the main thread. TJG -- http://mail.python.org/mailman/listinfo/python-list
Python selenium web driver
Hi,
I am looking into using Selenium 2.0 for launching Firefox and browse few
sites. I am using Python APIs to talk to webdriver on Ubuntu 11.04. I am
basically trying to follow the steps mentioned at
http://pypi.python.org/pypi/selenium . When I run the program, it throws
error as below.
yesudian@yesudian-virtual-machine:~/Try$ sudo python five.py
[sudo] password for yesudian:
Traceback (most recent call last):
File "five.py", line 6, in
browser = webdriver.Firefox() # Get local session of firefox
File
"/usr/local/lib/python2.7/dist-packages/selenium/webdriver/firefox/webdriver.py",
line 46, in __init__
self.binary, timeout),
File
"/usr/local/lib/python2.7/dist-packages/selenium/webdriver/firefox/extension_connection.py",
line 46, in __init__
self.binary.launch_browser(self.profile)
File
"/usr/local/lib/python2.7/dist-packages/selenium/webdriver/firefox/firefox_binary.py",
line 44, in launch_browser
self._wait_until_connectable()
File
"/usr/local/lib/python2.7/dist-packages/selenium/webdriver/firefox/firefox_binary.py",
line 87, in _wait_until_connectable
raise WebDriverException("Can't load the profile. Profile Dir : %s" %
self.profile.path)
selenium.common.exceptions.WebDriverException: Message: "Can't load the
profile. Profile Dir : /tmp/tmpCR4CB7"
I tried to launch chrome also and the same issue happens. Do you have any
thoughts ?
Regards
Yesudian Rajkumar
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Re: sending ftp file list to mail???
En Fri, 07 Oct 2011 03:23:57 -0300, selahattin ay escribió: hi all. I want to get my ftp list and send the list to my mail adress... my codes are And your problem is...? -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: sending ftp file list to mail???
En Fri, 07 Oct 2011 03:23:57 -0300, selahattin ay
escribió:
hi all. I want to get my ftp list and send the list to my mail adress...
my codes are
baglanti = FTP("ftp.guncelyorum.org")
baglanti.login("**", "***")
print baglanti.dir()
posta = MIMEMultipart()
def posta_olustur():
posta['Subject']=konu
posta['From']=gmail_kullanici
posta['To']=kime
posta.attach(MIMEText(baglanti.retrlines("LIST"))) <-- what
can I do for here
Ah, I didn't notice that part.
MIMEText expects a string. retrlines, by default, outputs to stdout, isn't
very useful. Try this:
def posta_olustur():
...
lines = []
baglanti.retrlines("LIST", lines.append)
text = '\n'.join(lines)
posta.attach(MIMEText(text))
--
Gabriel Genellina
--
http://mail.python.org/mailman/listinfo/python-list
Re: socket.getsockname is returning junk!!
En Wed, 05 Oct 2011 08:56:08 -0300, Wong Wah Meng-R32813
escribió:
I am migrating my application from python 1.5.2 to 2.7.1. One of the
existing code breaks. The getsockname method from socket object somehow
returns me with some number which I deem as junk, rather than the
listening port as I would have expected in the older python. Has anyone
seen the same thing or is it due to my python is built with some
corrupted library or something?
$ python
Python 2.7.1 (r271:86832, Oct 5 2011, 18:34:15) [C] on hp-ux11
Type "help", "copyright", "credits" or "license" for more information.
import socket
sock = socket.socket( socket.AF_INET, socket.SOCK_STREAM )
sock.setsockopt( socket.SOL_SOCKET, socket.SO_REUSEADDR, 1 )
sock.setsockopt( socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1 )
sock.setsockopt( socket.IPPROTO_TCP, 1, 1 )
server_address=('zmy02hp3', 1)
sock.bind(server_address)
sock.getsockname()
(0, '\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
In python 1.5.2
server_address=('zmy02aix04', 1)
sock.bind(server_address)
sock.getsockname()
('10.228.51.41', 1)
I'd say it's a problem with the _socket module; did the unit tests flag
anything when you built Python?
On Windows, Python 2.7.1:
server_address=('lepton', 1)
sock.bind(server_address)
sock.getsockname()
('127.0.0.1', 1)
--
Gabriel Genellina
--
http://mail.python.org/mailman/listinfo/python-list
Re: A tuple in order to pass returned values ?
Steven D'Aprano wrote:
Jean-Michel Pichavant wrote:
In a general manner, ppl will tend to use the minimum arguments
required. However, do not pack values into tuple if they are not related.
How would you return multiple values if not in a tuple?
Tuples are *the* mechanism for returning multiple values in Python. If
you're doing something else, you're wasting your time.
A better thing to do would be to use objects instead of tuples, tuples
can serve as lazy structures for small application/script, they can
become harmful in more complexe applications, especialy when used in
public interfaces.
First off, tuples *are* objects, like everything else in Python.
If you are creating custom classes *just* to hold state, instead of using a
tuple, you are wasting time. Instead of this:
class Record:
def __init__(self, x, y, z):
self.x = x
self.y = y
self.z = z
result = Record(1, 2, 3)
Just use a tuple or a namedtuple: the work is already done for you, you have
a well-written, fast, rich data structure ready to use. For two or three
items, or for short-lived results that only get used once, an ordinary
tuple is fine, but otherwise a namedtuple is much better:
from collections import namedtuple
result = namedtuple('Record', 'x y z')(1, 2, 3)
I don't have access to namedtuple, working with python 2.5
It sounds to me that namedtuple exactly tries to fix what I dislike in
tuples : undocumented packing of unrelated data.
However, I'm not sure it fixes the main issue: unpacking. Unpacking
prevents you from adding any additional fields to your 'tuple' without
breaking any line of code that was unpacking the tuple (to oppose to
accessing an object attribute). And it did annoy me a lot when improving
applications. Now I'm using tuples only in small applications, and try
to avoid unpacking as much as possible.
namedtuple sounds great (if you don't use unpacking :o) ), too bad it is
available only from python 2.6.
JM
--
http://mail.python.org/mailman/listinfo/python-list
RE: socket.getsockname is returning junk!!
Thanks. Someone pointed out that this could be due to a corrupted build, which
I revisited the process. I included -lxnet in the linking process of the build,
and this problem is resolved. The -lxnet was stated in README file for HP-UX
Itanium build, which I somehow dropped it out in the middle of the process and
wasn't aware it was essential as excluding it cost me the junk I was seeing.
Problem solved!! Thanks a lot for reverting. :)
Regards,
Wah Meng
-Original Message-
From: python-list-bounces+wahmeng=freescale@python.org
[mailto:python-list-bounces+wahmeng=freescale@python.org] On Behalf Of
Gabriel Genellina
Sent: Friday, October 07, 2011 5:37 PM
To: python-list@python.org
Subject: Re: socket.getsockname is returning junk!!
En Wed, 05 Oct 2011 08:56:08 -0300, Wong Wah Meng-R32813
escribió:
> I am migrating my application from python 1.5.2 to 2.7.1. One of the
> existing code breaks. The getsockname method from socket object somehow
> returns me with some number which I deem as junk, rather than the
> listening port as I would have expected in the older python. Has anyone
> seen the same thing or is it due to my python is built with some
> corrupted library or something?
>
>
> $ python
> Python 2.7.1 (r271:86832, Oct 5 2011, 18:34:15) [C] on hp-ux11
> Type "help", "copyright", "credits" or "license" for more information.
import socket
sock = socket.socket( socket.AF_INET, socket.SOCK_STREAM )
sock.setsockopt( socket.SOL_SOCKET, socket.SO_REUSEADDR, 1 )
sock.setsockopt( socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1 )
sock.setsockopt( socket.IPPROTO_TCP, 1, 1 )
server_address=('zmy02hp3', 1)
sock.bind(server_address)
sock.getsockname()
> (0, '\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
>
> In python 1.5.2
server_address=('zmy02aix04', 1)
sock.bind(server_address)
sock.getsockname()
> ('10.228.51.41', 1)
I'd say it's a problem with the _socket module; did the unit tests flag
anything when you built Python?
On Windows, Python 2.7.1:
>>> server_address=('lepton', 1)
>>> sock.bind(server_address)
>>> sock.getsockname()
('127.0.0.1', 1)
--
Gabriel Genellina
--
http://mail.python.org/mailman/listinfo/python-list
--
http://mail.python.org/mailman/listinfo/python-list
Re: Thread handling issue
Tim Golden timgolden.me.uk> writes: > > On 07/10/2011 09:29, Paul wrote: > > I'm wondering what the best solution for this problem is. > > > > I've got a wxpython app, in one part a user makes some selections then > > opens a > > dialog to select where to output. At which point the app starts a thread > > processing their selection while they're choosing an output location, hopefully > > ready for when they're done. > > > > My problem is if the user doesn't select an output location and cancels the > > dialog to go back to the selection I want to terminate the thread to avoid the > > user opening and closing the output selection firing off a ton of threads. > > > > As there's no inbuilt way of killing threads I was wondering the best way to > > prevent this? > > The most common approach is to have the thread monitor an event which is > set if, for example, the user cancels. The thread may of course have to > wait, for example, for a long-running database query to complete before > it can discover that its time has been wasted :) > > The exact mechanism will depend on how your code is structured, > what the thread is doing, and how it's passing anything back > to the main thread. > > TJG > My first thought was to use a flag but wouldn't the new thread see the cancel flag and stop as well? I could set it back but then any other threads might have been busy and not seen it while the flag was on. The thread goes through the selection and does a few quick server calls for each one building up a data file. I guess as the server calls are quite fast the thread would be able to check flags quite often unless it's getting time-outs or something. The threads don't pass anything back they're passed a reference to a data object which is constructed before the thread starts. The thread makes updates to the data object and sets a complete attribute flag in the object before finishing. -- http://mail.python.org/mailman/listinfo/python-list
Re: A tuple in order to pass returned values ?
On 07Oct2011 11:43, Jean-Michel Pichavant wrote:
| namedtuple sounds great (if you don't use unpacking :o) ), too bad
| it is available only from python 2.6.
It is easy enough to roll your own.
Here's some example code with several flaws (it claims tuplehood,
but is actually a list; it is not immutable; it takes a list of field
names instead of a space separated string as namedtuple does) and isn't
very tested.
But feel free to take it and adapt it:
def NamedTupleClassFactory(*fields):
''' Construct classes for named tuples a bit like the named tuples
coming in Python 2.6/3.0.
NamedTupleClassFactory('a','b','c') returns a subclass of "list"
whose instances have properties .a, .b and .c as references to
elements 0, 1 and 2 respectively.
'''
class NamedTuple(list):
for i in range(len(fields)):
f=fields[i]
exec('def getx(self): return self[%d]' % i)
exec('def setx(self,value): self[%d]=value' % i)
exec('%s=property(getx,setx)' % f)
return NamedTuple
def NamedTuple(fields,iter=()):
''' Return a named tuple with the specified fields.
Useful for one-off tuples/lists.
'''
return NamedTupleClassFactory(*fields)(iter)
More old code:-( I can see I need to go back to that and make it
cleaner. Surely I can get rid of the exec(0s at least:-)
Cheers,
--
Cameron Simpson DoD#743
http://www.cskk.ezoshosting.com/cs/
Hacker: One who accidentally destroys.
Wizard: One who recovers afterwards.
--
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Re: A tuple in order to pass returned values ?
Cameron Simpson wrote: > On 07Oct2011 11:43, Jean-Michel Pichavant wrote: > | namedtuple sounds great (if you don't use unpacking :o) ), too bad > | it is available only from python 2.6. > > It is easy enough to roll your own. Or use Raymond Hettinger's implementation: http://code.activestate.com/recipes/500261-named-tuples/ -- http://mail.python.org/mailman/listinfo/python-list
Testing properties that are date-related
Are there best practices for testing dates that are properties which take the current date into consideration? I have something like class Foo: def _get_year_range(self): return (self._min_year, self._max_year) def _set_year_range(self, year): if isinstance(year, tuple): _min, _max = map(window_date, year) if _min > _max: _min, _max = _max, _min else: # a raw int _min = _max = window_date(year) self._min_year, self._max_year = _min, _max year_range = property( fget=_get_year_range, fget=_get_year_range, ) The problem is that the behavior of the window_date function depends on the current date (the function makes a guess about adding the century if the year was <100). It *does* take an "around" parameter that defaults to the current date. So for pure testing of the window_date() function, I can hard-code some date where I know what the expected values should be. However if I want to write a test-harness for my property, I have no way (AFAIK) to pass in this fixed date to _set_year_range() so that the success/failure of my tests doesn't depend on the day I run them: class TestFoo: def test_year_range(self): around = date(2011,1,1) f = Foo() f.year_range = (97, 84) self.assertEqual(f.year_range, (1984, 1997)) Any suggestions/tips/hints? Thanks, -tkc -- http://mail.python.org/mailman/listinfo/python-list
Re: Testing properties that are date-related
Tim Chase wrote: > Are there best practices for testing dates that are properties > which take the current date into consideration? I have something > like > >class Foo: > def _get_year_range(self): >return (self._min_year, self._max_year) > def _set_year_range(self, year): >if isinstance(year, tuple): > _min, _max = map(window_date, year) > if _min > _max: _min, _max = _max, _min >else: # a raw int > _min = _max = window_date(year) >self._min_year, self._max_year = _min, _max > year_range = property( >fget=_get_year_range, >fget=_get_year_range, >) > > The problem is that the behavior of the window_date function > depends on the current date (the function makes a guess about > adding the century if the year was <100). It *does* take an > "around" parameter that defaults to the current date. So for > pure testing of the window_date() function, I can hard-code some > date where I know what the expected values should be. > > However if I want to write a test-harness for my property, I have > no way (AFAIK) to pass in this fixed date to _set_year_range() so > that the success/failure of my tests doesn't depend on the day I > run them: > >class TestFoo: > def test_year_range(self): >around = date(2011,1,1) >f = Foo() >f.year_range = (97, 84) >self.assertEqual(f.year_range, (1984, 1997)) > > Any suggestions/tips/hints? Thanks, Temporarily replace the window_date() function with something that you can control completely. Assuming Foo and window_date are defined in foo.py: # untested import foo class TestFoo: def setUp(self): foo.window_date = functools.partial(foo.window_date, around=date(2011, 1, 1)) def tearDown(self): foo.window_date = foo.window_date.func def test_year_range(self): f = Foo() f.year_range = (97, 84) self.assertEqual(f.year_range, (1984, 1997)) See also http://www.voidspace.org.uk/python/mock/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Testing properties that are date-related
On 10/07/11 07:38, Peter Otten wrote: Are there best practices for testing dates that are properties which take the current date into consideration The problem is that the behavior of the window_date function depends on the current date (the function makes a guess about adding the century if the year was<100). It *does* take an "around" parameter that defaults to the current date. So for pure testing of the window_date() function, I can hard-code some date where I know what the expected values should be. However if I want to write a test-harness for my property, I have no way (AFAIK) to pass in this fixed date to _set_year_range() so that the success/failure of my tests doesn't depend on the day I run them Temporarily replace the window_date() function with something that you can control completely. Assuming Foo and window_date are defined in foo.py: # untested import foo class TestFoo: def setUp(self): foo.window_date = functools.partial(foo.window_date, around=date(2011, 1, 1)) def tearDown(self): foo.window_date = foo.window_date.func def test_year_range(self): f = Foo() f.year_range = (97, 84) self.assertEqual(f.year_range, (1984, 1997)) I had to twiddle my class code a bit to make sure it referenced module.window_date() everywhere instead of just a raw window_date() (originally pulled in via "from module import window_date") so that it picked up the new function, but otherwise it worked like a charm. (there was also the matter of some function properties that were used for an undetailed parameter to allow for suggesting that the window_date bias backwards, forwards or around the current date, but a little hackery took care of that too, just copying the germane properties from the saved function object to the result of the partial() call) Thanks! -tkc -- http://mail.python.org/mailman/listinfo/python-list
Re: passing multiple string to a command line option
Seems like self.ptype is a type that has __init__ with no arguments (other than self). You can add "print type(self.ptype)" as first line of "convert" to see what type it is (or place a breakpoint there). -- http://mail.python.org/mailman/listinfo/python-list
Re: Testing properties that are date-related
Tim Chase wrote: On 10/07/11 07:38, Peter Otten wrote: Are there best practices for testing dates that are properties which take the current date into consideration The problem is that the behavior of the window_date function depends on the current date (the function makes a guess about adding the century if the year was<100). It *does* take an "around" parameter that defaults to the current date. So for pure testing of the window_date() function, I can hard-code some date where I know what the expected values should be. However if I want to write a test-harness for my property, I have no way (AFAIK) to pass in this fixed date to _set_year_range() so that the success/failure of my tests doesn't depend on the day I run them Temporarily replace the window_date() function with something that you can control completely. Assuming Foo and window_date are defined in foo.py: # untested import foo class TestFoo: def setUp(self): foo.window_date = functools.partial(foo.window_date, around=date(2011, 1, 1)) def tearDown(self): foo.window_date = foo.window_date.func def test_year_range(self): f = Foo() f.year_range = (97, 84) self.assertEqual(f.year_range, (1984, 1997)) I had to twiddle my class code a bit to make sure it referenced module.window_date() everywhere instead of just a raw window_date() (originally pulled in via "from module import window_date") so that it picked up the new function, but otherwise it worked like a charm. Another option is injection: import foo def window_date(...): ... foo.window_date = window_date ~Ethan~ -- http://mail.python.org/mailman/listinfo/python-list
Re: Thread handling issue
On 07/10/2011 11:15, Paul wrote: My first thought was to use a flag but wouldn't the new thread see the cancel flag and stop as well? I could set it back but then any other threads might have been busy and not seen it while the flag was on. The thread goes through the selection and does a few quick server calls for each one building up a data file. I guess as the server calls are quite fast the thread would be able to check flags quite often unless it's getting time-outs or something. The threads don't pass anything back they're passed a reference to a data object which is constructed before the thread starts. The thread makes updates to the data object and sets a complete attribute flag in the object before finishing. Well a lot depends on how you're doing things. (ie "It Depends"). You could generate an event for each thread so a second thread started while the first was running down wouldn't cause confusion. It's not clear whether the data object is common to all threads -- in which case you need to make sure you're locking etc. -- or is a new instance for each thread. I did try a couple of passes at a code-sketch, but there are too many unknowns to do justice to it. Basically, have the thread poll an event as it moves through. Have the UI set the event and join to the existing thread (ie wait for it to finish) and then fire off a new one. Or -- if the data items are independent -- fire off the new one regardless and let the old one die when it sees its event, assuming that the data object it's populating is disposable. TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Testing properties that are date-related
On 10/07/11 09:45, Ethan Furman wrote: Tim Chase wrote: On 10/07/11 07:38, Peter Otten wrote: def setUp(self): foo.window_date = functools.partial(foo.window_date, around=date(2011, 1, 1)) it worked like a charm. Another option is injection: import foo def window_date(...): ... foo.window_date = window_date The problem is that I *want* the functionality of the existing window_date() because that's part of what's being tested. Peter's suggestion of injection to the module namespace via functools.partial() to specify the missing parameter was the tip I needed to be able to write tests that exercised things properly without overly invasive changes to the code. But thanks for your idea. -tkc -- http://mail.python.org/mailman/listinfo/python-list
Re: passing multiple string to a command line option
That print command generated a lot of errors. Since that error in my first post is related to the python code in simulator, I emailed them and consulted for help. Seems that it is going to be fixed Thanks for your kindness :) // Naderan *Mahmood; - Original Message - From: Miki Tebeka To: comp.lang.pyt...@googlegroups.com Cc: python mailing list ; Miki Tebeka ; Mahmood Naderan Sent: Friday, October 7, 2011 5:41 PM Subject: Re: passing multiple string to a command line option Seems like self.ptype is a type that has __init__ with no arguments (other than self). You can add "print type(self.ptype)" as first line of "convert" to see what type it is (or place a breakpoint there). -- http://mail.python.org/mailman/listinfo/python-list
Re: help
On Fri, 07 Oct 2011 15:59:55 +, X1 wrote: > I have this program that fails: > > $ vapt > Traceback (most recent call last): > File "/usr/local/bin/vapt", line 3, in > from vapt import vapt > File "/usr/lib/python2.6/site-packages/vapt/__init__.py", line 11, in > > __import__(name, glob, loc, []) > File "/usr/lib/python2.6/site-packages/vapt/cadview.py", line 13, in > > import OpenGL.Tk as gltk > ImportError: No module named Tk > > > can you help me? > This is on fedora The OpenGL.Tk module is looking for the Tk module and not finding it. Install the Tk module. Try "sudo easy_install Tk". -- http://mail.python.org/mailman/listinfo/python-list
unsupported operand type(s) for pow(): 'unicode', 'long', 'long': Pycrypto
Hello everyone, I'm writing a fairly large app which uses Oauth (python-oauth2). I am trying to generate a public/private key pair on user supplied parameters (whitespaced-delimited strings basically). When trying to encrypt the key, I'm getting the "unsupported operand type(s) for pow(): 'unicode', 'long', 'long'" >From Interactive shell, the program worked successfully. My question is do I have to make the user supplied data of a non-unicode string to make this work? Thanks -- Odeyemi 'Kayode O. http://www.sinati.com. t: @charyorde -- http://mail.python.org/mailman/listinfo/python-list
Re: unsupported operand type(s) for pow(): 'unicode', 'long', 'long': Pycrypto
On Fri, Oct 7, 2011 at 11:16 AM, Kayode Odeyemi wrote: > Hello everyone, > > I'm writing a fairly large app which uses Oauth (python-oauth2). I am trying > to generate a > public/private key pair on user supplied parameters (whitespaced-delimited > strings basically). > > When trying to encrypt the key, I'm getting the "unsupported operand type(s) > for pow(): 'unicode', 'long', 'long'" > > From Interactive shell, the program worked successfully. > > My question is do I have to make the user supplied data of a non-unicode > string to make this work? Please include the traceback and the snippet of code where you make the call that is failing. Without that, it is not at all clear exactly what you are doing, especially since python-oauth2 does not seem to provide any encryption API. Cheers, Ian -- http://mail.python.org/mailman/listinfo/python-list
Re: help
> Thanks, > I have the Tk module installed, but the program still fails. Probably it > is a problem of path? That would be my guess - that the Tk module is installed somewhere other than where OpenGL.Tk is looking for it. -- http://mail.python.org/mailman/listinfo/python-list
Re: unsupported operand type(s) for pow(): 'unicode', 'long', 'long': Pycrypto
On Fri, Oct 7, 2011 at 7:23 PM, Ian Kelly wrote: > On Fri, Oct 7, 2011 at 11:16 AM, Kayode Odeyemi wrote: > > Hello everyone, > > > > I'm writing a fairly large app which uses Oauth (python-oauth2). I am > trying > > to generate a > > public/private key pair on user supplied parameters > (whitespaced-delimited > > strings basically). > > > > When trying to encrypt the key, I'm getting the "unsupported operand > type(s) > > for pow(): 'unicode', 'long', 'long'" > > > > From Interactive shell, the program worked successfully. > > > > My question is do I have to make the user supplied data of a non-unicode > > string to make this work? > > Please include the traceback and the snippet of code where you make > the call that is failing. Without that, it is not at all clear > exactly what you are doing, especially since python-oauth2 does not > seem to provide any encryption API. > Thanks for writing in. I had this: encrypted = public_key.encrypt(params, 16) I was able to fix it with: encrypted = public_key.encrypt(str(params), 16) pow() needs params in non-unicode. I understand python-oauth2 does not have encryption API built-in. I'm creating one before using it. -- Odeyemi 'Kayode O. http://www.sinati.com. t: @charyorde -- http://mail.python.org/mailman/listinfo/python-list
RE: Thread handling issue
-Original Message- From: python-list-bounces+ramit.prasad=jpmorgan@python.org [mailto:python-list-bounces+ramit.prasad=jpmorgan@python.org] On Behalf Of Paul Sent: Friday, October 07, 2011 3:29 AM To: python-list@python.org Subject: Thread handling issue I'm wondering what the best solution for this problem is. I've got a wxpython app, in one part a user makes some selections then opens a dialog to select where to output. At which point the app starts a thread processing their selection while they're choosing an output location, hopefully ready for when they're done. My problem is if the user doesn't select an output location and cancels the dialog to go back to the selection I want to terminate the thread to avoid the user opening and closing the output selection firing off a ton of threads. As there's no inbuilt way of killing threads I was wondering the best way to prevent this? -- http://mail.python.org/mailman/listinfo/python-list Why not just wait until they are done with all user input and then fire threads after that? Ramit Ramit Prasad | JPMorgan Chase Investment Bank | Currencies Technology 712 Main Street | Houston, TX 77002 work phone: 713 - 216 - 5423 This email is confidential and subject to important disclaimers and conditions including on offers for the purchase or sale of securities, accuracy and completeness of information, viruses, confidentiality, legal privilege, and legal entity disclaimers, available at http://www.jpmorgan.com/pages/disclosures/email. -- http://mail.python.org/mailman/listinfo/python-list
Re: Advise on using logging.getLogger needed.
On Oct 2, 11:12 pm, "Steven W. Orr" wrote:
> I hope I don't sound like I'm ranting :-(
You don't, but neither is it absolutely clear what you're trying to
achieve. BTW the term "root logger" in the logging docs refers to a
logger internal to the logging package, and not to a logger that you
create. For that, it's best to refer to "top level logger for my
application/library".
Supposing you want your top-level logger always to be the name of your
main script, and you want other loggers to live below this logger. In
your main script module, therefore, you do the equivalent of
pname = compute_program_name(sys.argv[0])
logger = logging.getLogger(pname)
# configure logging handlers, filters etc. for your application
In your library modules, if you want them to live under that top-level
logger, then you can do something like
pname = compute_program_name(sys.argv[0])
logger = logging.getLogger('%s.%s' % pname, __name__)
where you can use something other than __name__ for the logger name
suffix, if you want.
> My problem is that I just want the modules that I write, to be able to get the
> named root logger and still be able to refer to possible sub-loggers.
According to the scheme I describe, if you have two scripts called
"foo" and "bar" which make use of a common module "baz", then events
in the foo module would appear under logger "foo", and events in the
baz module when run from foo would be logged under logger "foo.baz".
When running "bar", events in the bar module would appear under logger
"bar", whereas events in the baz module when run from bar would be
logged under logger "bar.baz". This seems to be what you're asking
for, but I may have misunderstood.
> I am running 2.6, so I don't have access to logging.getChild, but I'm not
> clear that I even want that.
getChild is just a convenience method, you don't need it - you can
just build the logger name as in my example above.
> My modules are used by multiple programs. Does this mean that I should simply
> use __name__ all the time? (That seems inelegant, no?)
Actually __name__ is very elegant, as it is impervious to you moving
your code around and follows the Python package hierarchy. Also, if
you are using third party code (especially from various sources),
using __name__ will make things unambiguous about where exactly events
are being logged from. Third party code typically won't know about
your top-level logger, and __name__ is the one scheme that everything
can agree on - the point about logger names being that they're
supposed to codify "where" in your application events occur, and the
package hierarchy is the canonical representation of source locations
in an application.
Regards,
Vinay Sajip
--
http://mail.python.org/mailman/listinfo/python-list
deepcopy does not work for A subclassed list
This is the issue I have created a mylist class by subclassing a List, added several attributes to mylist , and overrided the append method which takes into account one of the new attributes. mylist class is functional and works as I planned, but when I try to deepcopy objects from mylist I received errors because the attribute has not been copied and the override append raise an error. When I want to deepcopy one object from mylist the algorithm does not take into account the attributes I created; ergo, I have some errors from the copy module I can use pickle to dump and load objects from my subclass with no errors. Any ideas about how to make the copy module to behave as expected. Thanks! -- http://mail.python.org/mailman/listinfo/python-list
[ANN] pypiserver 0.3.0 - minimal pypi server
Hi, I've just uploaded pypiserver 0.3.0 to the python package index. pypiserver is a minimal PyPI compatible server. It can be used to serve a set of packages and eggs to easy_install or pip. pypiserver is easy to install (i.e. just easy_install pypiserver). It doesn't have any external dependencies. http://pypi.python.org/pypi/pypiserver/ should contain enough information to easily get you started running your own PyPI server in a few minutes. The code is available on github: https://github.com/schmir/pypiserver Changes in version 0.3.0 - - pypiserver now scans the given root directory and it's subdirectories recursively for packages. Files and directories starting with a dot are now being ignored. - /favicon.ico now returns a "404 Not Found" error - pypiserver now contains some unit tests to be run with tox -- Cheers, Ralf -- http://mail.python.org/mailman/listinfo/python-list
Memory
Quick question, What is the best way for pulling resource information for a system running linux? Was wondering if there was a python only way. Methods I am aware of are: 1. Parsing contents of /proc 2. Running a system command like free, or dmidecode and parsing the output. Is there any other way to pull.. lets say memory information? i.e. Find how much total RAM a system has on it. Thanks you. -- http://mail.python.org/mailman/listinfo/python-list
Re: Dabo 0.9.4 Released!
On Oct 6, 2011, at 12:18 PM, Neal Becker wrote: > What is it? Sorry, I guess I should have included that. We've been around for so long I sometimes assume that everyone knows what Dabo is. Dabo is a framework for building desktop applications. It is strongly geared toward database applications, although a database connection is completely optional. We wrap the wxPython GUI toolkit, hiding its C++ roots and presenting a more Pythonic interface for creating your UI. See more at http://dabodev.com, and feel free to ask any more questions. -- Ed Leafe -- http://mail.python.org/mailman/listinfo/python-list
Re: Memory
Am 07.10.2011 21:39, schrieb Frank Ruiz: > Quick question, > > What is the best way for pulling resource information for a system > running linux? Was wondering if there was a python only way. > > Methods I am aware of are: > > 1. Parsing contents of /proc > 2. Running a system command like free, or dmidecode and parsing the output. > > Is there any other way to pull.. lets say memory information? i.e. > Find how much total RAM a system has on it. Yes, use psutil. http://code.google.com/p/psutil/ -- http://mail.python.org/mailman/listinfo/python-list
Re: recommend a graphics library for plotting by the pixel?
On 2011-10-04, Ian Kelly wrote: > On Tue, Oct 4, 2011 at 3:56 AM, Adam Funk wrote: >> I'd like to create a window with a "pause" button and a large plotting >> area, in which I'd like to draw a polygon, detect the pixel >> coördinates of a mouse click, and then start setting the colors of >> pixels by (x,y) coördinates. (This is just for my own amusement, to >> play with some formulas for generating fractals using random numbers.) >> >> There seems to be a large number of different python GUI libraries, >> and I wonder if someone can recommend the easiests one to learn for >> this purpose? (The only python graphics library I've used is PyGame, >> which I don't think is the way to go here.) > > You could use wxPython. You'll need to create a custom control and > have it paint itself by blitting from a wx.Bitmap, which you'll draw > on by using a wx.MemoryDC and then refreshing the control. > > I would probably just use pygame myself. I guess you're avoiding it > because of the requirement for a button, but there are GUI libraries > available for it, or if all you need are a couple of buttons you could > easily roll your own. Excellent suggestion. I got it to work, but using keypresses (pause, step, quit) instead of buttons, and a mouse event for letting the user pick the start point on the screen. -- I worry that 10 or 15 years from now, [my daughter] will come to me and say 'Daddy, where were you when they took freedom of the press away from the Internet?' [Mike Godwin] http://www.eff.org/ -- http://mail.python.org/mailman/listinfo/python-list
Re: recommend a graphics library for plotting by the pixel?
On 2011-10-05, Westley Martínez wrote: > On Wed, Oct 05, 2011 at 02:29:38PM +0100, Adam Funk wrote: >> I only know PyGame because we did an exercise in recreating the old >> breakout game and messing around with it at a local Python group. >> >> I was under the mistaken impression from that exercise that you have >> to maintain a set of all the objects on the screen and redraw them all >> every time through the loop that ends with pygame.display.flip() --- >> *but* I now see that the loop starts with these: >> >> clock.tick(tick_rate) >> screen.fill((0,0,0)) >> # comes from screen = >> pygame.display.set_mode((screen_width,screen_height)) >> # before the loop >> >> and that I was then deleting hit bricks, calculating the new positions >> of the balls, and then redrawing everything that was left on the >> secondary screen because things were moving around and disappearing. >> >> I guess if I don't clear the screen at the beginning of the loop but >> just blit pixels onto it, when I call display.flip(), it will add the >> new blittings to what was already there? If that's true, this will be >> much easier than I thought. > Yep. Blitting is replacing the old colors with new colors. It doesn't > replace colors unless you tell it to. My mistake was in sample code, running with it, & not looking at it too closely. ;-) -- Mathematiker sind wie Franzosen: Was man ihnen auch sagt, übersetzen sie in ihre eigene Sprache, so daß unverzüglich etwas völlig anderes daraus wird.[Goethe] -- http://mail.python.org/mailman/listinfo/python-list
Re: deepcopy does not work for A subclassed list
On 07/10/2011 20:29, txismis unzetabarrenetxeagoikolea wrote: This is the issue I have created a mylist class by subclassing a List, added several attributes to mylIst , and overrided the append method which takes into account one of the new attributes. mylist class is functional and works as I planned, but when I try to deepcopy objects from mylist I received errors because the attribute has not been copied and the override append raise an error. When I want to deepcopy one object from mylist the algorithm does not take into account the attributes I created; ergo, I have some errors from the copy module I can use pickle to dump and load objects from my subclass with no errors. Any ideas about how to make the copy module to behave as expected. The documentation talks about defining a "__deepcopy__" method. -- http://mail.python.org/mailman/listinfo/python-list
Re: Thread handling issue
On 07Oct2011 10:15, Paul wrote: | Tim Golden timgolden.me.uk> writes: | > On 07/10/2011 09:29, Paul wrote: | > > My problem is if the user doesn't select an output location and cancels the | > > dialog to go back to the selection I want to terminate the thread to avoid the | > > user opening and closing the output selection firing off a ton of threads. | > > | > > As there's no inbuilt way of killing threads I was wondering the best way to | > > prevent this? | > | > The most common approach is to have the thread monitor an event which is | > set if, for example, the user cancels. The thread may of course have to | > wait, for example, for a long-running database query to complete before | > it can discover that its time has been wasted :) [...] | My first thought was to use a flag but wouldn't the new thread see the cancel | flag and stop as well? I could set it back but then any other threads might have | been busy and not seen it while the flag was on. I'd be inclined to dispatch threads via a control object of some kind. You'd have a default one for your program as a whole, but when you have a circumstance such as you describe instantiate a new control object. Set the cancel flag in the control objects. Have threads poll their invoking control object. That way you can have a flag that applies to your desired set of threads. Cheers, -- Cameron Simpson DoD#743 http://www.cskk.ezoshosting.com/cs/ He's silly and he's ignorant, but he's got guts, and guts is enough. - Sgt. Hartmann -- http://mail.python.org/mailman/listinfo/python-list
Re: deepcopy does not work for A subclassed list
On 10/7/2011 4:37 PM, MRAB wrote: On 07/10/2011 20:29, txismis unzetabarrenetxeagoikolea wrote: Any ideas about how to make the copy module to behave as expected. The documentation talks about defining a "__deepcopy__" method. Specifically, in the copy module doc "In order for a class to define its own copy implementation, it can define special methods __copy__() and __deepcopy__(). The former is called to implement the shallow copy operation; no additional arguments are passed. The latter is called to implement the deep copy operation; it is passed one argument, the memo dictionary. If the __deepcopy__() implementation needs to make a deep copy of a component, it should call the deepcopy() function with the component as first argument and the memo dictionary as second argument." All the possible customization methods are discussed in Language Reference 3.3. Special method names -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: help
On 10/7/2011 12:56 PM, Redcat wrote: On Fri, 07 Oct 2011 15:59:55 +, X1 wrote: I have this program that fails: $ vapt Traceback (most recent call last): File "/usr/local/bin/vapt", line 3, in from vapt import vapt File "/usr/lib/python2.6/site-packages/vapt/__init__.py", line 11, in __import__(name, glob, loc, []) File "/usr/lib/python2.6/site-packages/vapt/cadview.py", line 13, in import OpenGL.Tk as gltk ImportError: No module named Tk can you help me? This is on fedora The OpenGL.Tk module is looking for the Tk module and not finding it. Install the Tk module. Or there is no OpenGL.Tk module >>> import itertools.xxx Traceback (most recent call last): File "", line 1, in import itertools.xxx ImportError: No module named xxx Try "sudo easy_install Tk". -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: unsupported operand type(s) for pow(): 'unicode', 'long', 'long': Pycrypto
On 10/7/2011 2:54 PM, Kayode Odeyemi wrote: pow() needs params in non-unicode. pow() need 2 or 3 numbers as args. The function that calls it must turn the (2.x) string into a number, either with hash() or its own hash function. That latter function probably want integers code in range(256). "pow(x, y[, z]) Return x to the power y; if z is present, return x to the power y, modulo z (computed more efficiently than pow(x, y) % z). The two-argument form pow(x, y) is equivalent to using the power operator: x**y. The arguments must have numeric types. With mixed operand types, the coercion rules for binary arithmetic operators apply. For int operands, the result has the same type as the operands (after coercion) unless the second argument is negative; in that case, all arguments are converted to float and a float result is delivered. For example, 10**2 returns 100, but 10**-2 returns 0.01. If the second argument is negative, the third argument must be omitted. If z is present, x and y must be of integer types, and y must be non-negative. " -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
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--
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Re: Deleting files on a shared server
En Fri, 07 Oct 2011 04:45:32 -0300, Tim Golden escribió: On 07/10/2011 02:14, Josh English wrote: To delete the files, I am using os.unlink. One lock file refuses to disappear, even though I have code at both application startup and shutdown (on the OnInit and OnExit methods to the wxPython Application object) that hunts down .lock files and deletes them. Assuming that your code paths succeed and that the unlink actually happens, it is possible for files to continue to exist after they have been successfully deleted. This happens if another process has opened them with share-delete mode; typically this will be a virus checker or a process like the TortoiseSVN cache (or its counterparts for other VCS). The file won't actually disappear until the last handle on it is released. In such cases the openfiles command [1] is very useful for detecting who is holding the file open. [1] http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/openfiles.mspx -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
