how can i determine if a given character sequence matches my regex,
completely?
in java for example I can do,
Pattern.compile(regex).matcher(input).matches()
this returns True/False whether or not input matches the regex
completely.
is there a matches in python?
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yea i saw thatguess I was trusting that my regex was accurate :)
...b/c i was getting a Matcher when I shouldnt have, but i found that
it must be the regex.
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I have a regex: '[A-Za-z]:\\([^/:\*\?"<>\|])*'
when I do, re.compile('[A-Za-z]:\\([^/:\*\?"<>\|])*') ...I get
sre_constants.error: unbalanced parenthesis
do i need to escape something else? i see that i have matching
parenthesis.
thx
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well thanks for the quick replies, but now my regex doesn't work.
[code]
import re
p = re.compile(r'[A-Za-z]:\\([^/:\*?"<>\|])*')
x = p.match("c:\test")
[/code]
x is None
any ideas why? i escape the back-slash, the asterisk *, and the PIPE |
b/c they are regex special characters.
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sorry i forgot to escape the question mark...
> [code]
> import re
> p = re.compile(r'[A-Za-z]:\\([^/:\*?"<>\|])*')
even when I escape that it still doesnt work as expected.
p = re.compile(r'[A-Za-z]:\\([^/:\*\?"<>\|])*')
p.match('c:\test') still returns None.
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Sybren Stuvel wrote:
> Yes, because after the "c:" you expect a backslash, and not a tab
> character. Read the manual again about raw strings and character
> escaping, it'll do you good.
doh. i shall do that.
thanks.
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not sure why this passes:
>>> regex = r'[A-Za-z]:\\([^/:\*\?"<>\|])*'
>>> p = re.compile(regex)
>>> p.match('c:\\test')
<_sre.SRE_Match object at 0x009D77E0>
>>> p.match('c:\\test?:/')
<_sre.SRE_Match object at 0x009D7720>
>>>
the last example shouldnt give a match
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I am trying to get a regex that will match \r\n in a string.
ultimately i am trying to replace all \r\n with somethign else, say
BLAH.
For example:
This is a message
on a new line
would become:
This is a messageBLAHon a new line.
any ideas? i tried
re.compile('\r\n').match("This is a message"
if i have a number, say the size of a file, is there an easy way to
output it so that it includes commas?
for example:
1890284
would be:
1,890,284
I am looking for something builtin to python, not a third party lib.
thanks
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class Foo:
def __init__(self, name, data=[]):
self.name = name
self.data = data
def addData(self, val):
self.data.append(val)
f = Foo('a')
f.addData(1)
f.addData(2)
f2 = Foo('b')
print f.name, f.data
print f2.name, f2.data
OUTPUT
--
Rob Williscroft wrote:
> http://docs.python.org/ref/function.html#l2h-619
thanks. weird that it works that way since they even state "This is
generally not what was intended."
oh well.
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x = None
result = (x is None and "" or str(x))
print result, type(result)
---
OUTPUT
---
None
y = 5
result = (y is 5 and "it's five" or "it's not five")
print result
-
OUTPUT
-
it's five
...what's wrong with the first operation I did with x?
Carsten Haese wrote:
> Use Python 2.5 where there is a true conditional
> expression or find another way to solve your problem.
python 2.5 once we upgrade (hopefully soon), anyways...an earlier post
suggested the inverse...
x = None
result = (x is not None and str(x) or "")
which works just fine
I am using gifmaker.py from PIL v1.1.5 on python 2.4.1.
CODE
import ImageGrab, gifmaker
seq = []
while keepOnGoing:
im = ImageGrab.grab()
seq.append(im)
fp = open("out.gif", "wb")
gifmaker.makedelta(fp, seq)
fp.close()
--
I have PIL 1.1.5 on python 2.4.1 and I am attempting to get a smaller
(file size) of an image.
for example:
im = ImageGrab.grab()
im.save("tmp.gif") about 1.7mb
im.save("tmp.jpeg") about 290kb
anyways I want to save the image as a GIF, but not have it be so
largeso I thought th
Fredrik Lundh wrote:
> GIF is horribly unsuitable for screenshots on modern machines. have you
> considered using PNG ?
>
> or even better, Flash?
well I am trying to take screenshots and make them into an animated
GIF, however, putting them into a Flash movie would be coolany idea
how to go
oh and vnc2swf would not be an option, i cant be setting up a vnc
server, etc. just need to use python (and necessary packages).
animated gif would probably be best i am assuming.
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Fredrik Lundh wrote:
> to repeat myself:
>
> here's a tool that lets you use VNC to capture the screen, and then
> convert
> the result to a flash animation:
>
>http://www.unixuser.org/~euske/vnc2swf/
>
>
is there a way to make animated GIFs with python? vnc2swf is to much
for w
fredrik,
in other posts you have mentioned the use of gifmaker. i have tried
that with the following:
I am using gifmaker.py from PIL v1.1.5 on python 2.4.1.
CODE
import ImageGrab, gifmaker
seq = []
while keepOnGoing:
im =
Brett Hoerner wrote:
> Are you sure you can't use VNC? An animated GIF based on full-screen
> grabs will be amazingly huge and have very low color quality at the
> same time.
>
> Installing VNC on Windows should take you about 30 seconds, honest.
>
> Or is this for some sort of project where you c
Gabriel Genellina wrote:
> A VNC server is about 400K in size...
Yea, VNC is not an option in my case.
thanks anyway, perhaps I'll look into generating a slideshow using
HTML/javascript which can load the images.
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I have a TextCtrl which is set to be multi-line. I have a function
say, updateText(msg), which takes some string and appends it to the
text control...
txtControl.AppendText(msg)
however, if the text that I am appending would cause the scroll
bars to appear/or scroll since the text is long th
On Oct 30, 2:52 pm, John Salerno <[EMAIL PROTECTED]> wrote:
Don't know for sure, but you can try calling the Refresh() method on
the
> text control and see if that fixes it.
Didn't make a difference. Not sure what the problem is, I am wondering
if it is a layout issue since that is my weak spot w
> But one question that comes to mind is, do you not add sizerTextPanel to
> sizerMainPanel? I think all sub-sizers should be added to the main
> sizer, unless there's some weird reason I don't know of.
well i set the sizer on the textPanel and then I add the textPanel to
sizerMainPanel
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On Oct 30, 3:47 pm, John Salerno <[EMAIL PROTECTED]> wrote:
>I noticed that one object you refer to is
> self.textPane, is that supposed to be self.textPanel?
no, self.textPane is the actual wx.TextCtrl.
I used a GUI Builder to the layout stuff...perhaps that's my problem :)
is there a good site
> How do I do sometihing simple like that in python?
print "hello"
print "Jim"
> How do I enter line numbers, or if none, what do I do.
no line numbers needed
> Can the interpreter load a text file with my program in it?
read in a text file:
data = open("something.txt").read()
> How do I list
thanks for the feedback, I am watching the screencasts, which are
helping already. I think I will try out the Dabo GUI tool since it
uses wxPython...and see if I can get the code I need from it.
thanks
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Anyone ever use the PythonDoc ant task? I have the following...
...this is a cut out of the build xml i am using...but it shows the
relevant parts. Anyways I can run my "pyDoc" target and it runs
successful with no errors. a "docs" directory is created but
i found that the problem is because of an import, which is strange.
The imported module looks something like this
[code]
import time
class Foo:
pass
class Bar:
global javax.swing
import javax.swing
[/code]
so it seems that pydoc cant giggity-giggit!
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If I have code which imports a module over and over again...say each
time a function is called, does that cause Python to actually re-import
it...or will it skip it once the module has been imported??
for example:
def foo():
import bar
bar.printStuff()
foo()
foo()
foo()
foo()
...will th
Just curious if anyone had any information, or links, regarding the
blocking of network ports and/or taking over (hijacking) ports using
Python.
Any python modules/libs you could recommend? tutorials/reading
materials?
Thanks in advance.
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any ideas on how to block a network port from being used, or one that
is currently in use? For example, say I want to block port 23 from
being used. by used, I mean allowing connections to or from it.
thanks in advance.
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Larry Bates wrote:
> This is not really a Python question. Blocking ports is a function
> of your firewall solution.
>
ok, no of any python solutions? or command-line firewalls?
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I have a python script which creates a wx.App, which creates a wx.Frame
(which has a wx.Timer).
looks sorta like this:
class MyProgram:
def __init__(self):
self.app = MyApp(0)
self.app.MainLoop()
class MyApp(wx.App):
def OnInit(self):
self.myframe= MyFrame()
> Fix: Start the script from the main thread only.
>
> Regards,
>
>
> Björn
thanks for NO help.anyways, I got rid of the Timer b/c all i was
using it for was to check the state of the "shift" key.but I am now
binding to key up/down.
thanks anyway
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I have a class which extends 'file'
class MyFile(file):
def __init__(self, fname, mode='r'):
file.__init__(self, fname, mode)
def write(self, str):
print "writing a string"
file.write(self, str)
def writelines(self, lines):
print "writing lines"
I am using fnmatch.fnmatch to find some files. The only problem I have
is that it only takes one pattern...so if I want to search using
multiple patterns I have to do something like
patterns = ['abc*.txt', 'foo*']
for p in patterns:
if fnmatch.fnmatch(some_file_name, p):
return T
How can tell if an object is a subclass of something else?
Imagine...
class Thing:
pass
class Animal:
pass
class Dog:
pass
d = Dog()
I want to find out that 'd' is a Dog, Animal and Thing. Such as...
d is a Dog
d is a Animal
d is a Thing
Thanks
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yea i meant to have animal extend thing and dog extend animalmy
mistake.
anyways, is there a way to check without having an instance of the
class?
such as,
isinstance(Dog, (Animal, Thing)) ??
thanks
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I am using Python to create a process on another computer. Both
computers are on the same domain with admin privileges.
On computer B I have a batch script which starts a python script. From
computer A I am doing the following:
import wmi
w = wmi.WMI("1.2.3.4")
p = w.new("Win32_Process")
pid, r
Tim,
Ok, well I verified that my python script and batch script are
working properly. In fact, if I double click on the batch script (when
its on Computer B), it starts the python script and the script runs
fine with no problem.
However when I try to execute the batch script from computer A
so far i tried adding
SET > c:\tmp.txt
start
SET > c:\tmp2.txt
...and I saw both tmp files created but no python running. I still
have to try skipping the batch file...i'll let u know.
thanks
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Tim,
I am skipping using the batch file and only executing the python
script directly...and so far it works fine.
So now I have:
pid, retVal =
wmi.WMI("1.2.3.4").new("Win32_Process").Create(CommandLine="c:\python\python.exe
c:\some_script.py")
Thanks again...not sure why when using the batch
Tim Golden wrote:
> BTW, I would recommend you either to use a raw string
> for that command line (r"c:\python\python.exe c:\xx.py") or
> to double up your slashes ("c:\\python\\python.exe c:\\xx.py").
> As it happens \p has no special meaning that I'm
> aware of, but better safe than sorry...
..
i want to create a CGI script which simply prints out values given via
the URL (such as when a GET is performed).
So if I have a script named, foo.cgi and I access it by going to:
http://www.somesite.com/cgi-bin/foo.cgi?name=john&age=90
I want foo.cgi to print out:
name: john
age: 90
how d
Ian Leitch wrote:
> >>> from urlparse import urlparse
> >>> dict([n for n in [i.split('=') for i in
> urlparse('http://www.somesite.com/cgi-bin/foo.cgi?name=john&age=90')[4].split('&')]])
> {'age': '90', 'name': 'john'}
Ian, thanks for the reply, but that is not what I need to do. Inside
foo.cg
is there a built-in way of printing the size of a file nicely?
So if the file size is 103803 bytes it prints out like: 103.8K
or
0.1MB
something liek that?
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I have class like this...
import threading
class MyBlah(object):
def __init__(self):
self.makeThread(self.blah, (4,9))
def blah(self, x, y):
print "X and Y:", x, y
def makeThread(self, func, args=(), kwargs={}):
threading.Thread(target=self.blah, args=args,
kw
Not sure if it matters, but this occurs when running a unittest.
The trace back is:
Traceback (most recent call last):
File "C:\Python24\Lib\threading.py", line 442, in __bootstrap
self.run()
File "C:\Python24\Lib\threading.py", line 422, in run
self.__target(*self.__args, **self.__kwa
i was missing "self" in my method signature!
doh!
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I have a linux machine (ip = 10.10.10.8), which can ping other
machines on the same subnet...such as
10.10.10.1
10.10.10.2
10.10.10.5
10.10.10.6
10.10.10.254
If I use socket.gethostbyaddr() I get back results when ip is
10.10.10.1 and 10.10.10.254 but for the other IP addresses
(10.10.10.5, .6, e
I have some HTML such as
blah blah blah
I wnat to pull out the text that lies inside the quotes of the src
attribute. So in this example I would get image/blah/a.jpg
My regex so far is: src=\"(.*)\" however the group in this case
would end up being, image/blah/a.jpg" id="d">bla
thanks, forgot that.
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:(
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Are lists thread safe? Or do I have to use a Lock when modifying the
list (adding, removing, etc)? Can you point me to some documentation
on this?
thanks
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Thanks for the link. I saw that one in my google search but didn't
visit it for some reason.
Looks like most operations should be just fine.
Thanks.
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I guess this might be overkill then...
class MyList(list):
def __init__(self):
self.l = threading.Lock()
def append(self, val):
try:
self.l.acquire()
list.append(self, val)
finally:
if self.l.locked():
self.l.rele
On Mar 9, 2:50 pm, "abcd" <[EMAIL PROTECTED]> wrote:
> I guess this might be overkill then...
>
> class MyList(list):
> def __init__(self):
> self.l = threading.Lock()
>
> def append(self, val):
> try:
> self.l.ac
probably a Thread.
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> But a thread leaves the script running until the thread exits, right?
> So the webpage would just keep saying "loading" at the bottom I think.
>
> -Greg
give it a shot. if you spawn off a new thread your code should keep
executing while the thread does its work in the "background".
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Hi,
I have a dictionary which may contain various keys/values, however,
it will always contain 'name' and 'age' keys.
This dictionary is kept inside a class, such as
class Person:
def __init__(self, name, age):
self.data = {'name' : name, 'age' : age}
de
On Mar 14, 7:29 am, "abcd" <[EMAIL PROTECTED]> wrote:
> Hi,
>I have a dictionary which may contain various keys/values, however,
> it will always contain 'name' and 'age' keys.
>
>This dictionary is kept inside a class, such as
>
I have a wxTextCtrl:
wx.TextCtrl(self.myPanel, -1, "", style=wx.TE_MULTILINE)
I take a set of text (65,000 characters), and paste it into the text
control. all looks well. Then when I click a button I print out the
entered text and the length of that text. Here is what I am seeing...
1. Paste
When do I need to use a trailing slash to separate code over multiple
lines.
For example:
x = "hello world, this is my multiline " + \
"string"
x = {'name' : \
'bob'}
Do I need to use the "\" in the above examples? When do i need to use
it?
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I have the following directory structure setup...
c:\alpha\Person.py
--
class Person(IPerson):
def __init__(self):
print "Alpha person here"
c:\beta\Person.py
--
class Person(IPerson):
def __init__(self):
print "Beta person here"
c:\gamma\P
nevermind this took care of it:
import sys
def tryAllThree():
a = "c:\\alpha"
b = "c:\\beta"
g = "c:\\gamma"
sys.path.append(a)
import Person
alpha = Person.Person()
sys.path.remove(a)
sys.path.append(b)
reload(Person)
beta = Person.Person()
sys.path
> Blerch! Why not just call the modules by the right names in the first
> place? Then each will have its own sys.modules entry for a start ...
>
> regards
> Steve
what do i need to do? also, is there a way I can load each one as I
have but each one have its own unique entry in sys.modules? For
thanks for the help.
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I have the following directory/file structure...
c:\foo\utils.py
c:\foo\bar\ok.py
In ok.py I want to do something like...
import utils
utils.helpMeDoSomething()
However, it seems that ok.py doesn't "know" about utils. Other than
manually configuring sys.path what can I do?
thanks
--
htt
On Mar 20, 9:58 am, "Diez B. Roggisch" <[EMAIL PROTECTED]> wrote:
> After a bunch of questions of that kind, I suggest you take a step back, and
> read this:
>
> http://docs.python.org/tut/node8.html
got it, thanks.
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I have a file, "a.py"
blah = None
def go():
global blah
blah = 5
>From the python interpreter I try
>>> from a import *
>>> blah
>>> go()
>>> blah
>>>
...i was hoping to see "5" get printed out the second time I displayed
blah, but it doesn't. Now, if I type this same code directly
I wanted to extend tuple but ran into a problem. Here is what I
thought would work
class MyTuple(tuple):
def __init__(self, *args):
tuple.__init__(self, args)
x = MyTuple(1,2,3,4)
That gives me...
TypeError: tuple() takes at most 1 argument (4 given).
However, this call works:
x
> As an immutable type, tuple makes use of __new__.
>
> class MyTuple(tuple):
> def __new__(cls, *args):
> return tuple.__new__(cls, args)
>
> should work.
>
> Georg
strange. not very consistent.
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>
> I hope you see now why it is consistent.
>
> Georg
yea that clears it up. thanks.
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Hi,
I have a class such as,
class Type:
def __init__(self, val):
self.val = val
class Person:
def __init__(self, name, age):
self.name = name
self.age = age
So I have a dictionary which maps an instance of Type to an instance
of Person. Now I need to retrieve
> You'll need __eq__ for testing if two objects are equivalent, and
> __hash__ for calculating object's hash value.
>
> class Type:
> def __init__(self, val):
> self.val = val
>
> def __eq__(self, other):
> return self.val == other.val
>
> def __hash__(self):
> r
Has anyone seen this error before:
wrap_EncryptByteArray() argument 1 must be string without null bytes,
not str
I am having a hard time finding anything about it.
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I have a class such as...
id = 0
class Foo:
def __init__(self, data):
self.id = id
id += 1
self.data = data
And I am storing them in a Queue.Queue...
import Queue
q = Queue.Queue()
q.put(Foo('blah'))
q.put(Foo('hello world'))
q.put(Foo('test'))
how can I search "q" f
Yea basically I need Queue like functionality with the ability to
search for a particular instance in it. I guess I could just use a
list and search it as needed.
Thanks.
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In my code I am debating whether or not to validate the types of data
being passed to my functions. For example
def sayHello(self, name):
if not name:
rasie "name can't be null"
if not isinstance(name, str):
raise "name must be a string"
print "Hello " + name
Is the u
> The "Python way" is to validate by performing the operations you need to
> perform and catching any exceptions that result. In the case of your
> example, you seem to be saying that you'd rather raise your own
> exception (which, by the way, should really be a subclass of Exception,
> but we will
Well my example function was simply taking a string and printing, but
most of my cases would be expecting a list, dictionary or some other
custom object. Still propose not to validate the type of data being
passed in?
Thanks.
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Well my example function was simply taking a string and printing, but
most of my cases would be expecting a list, dictionary or some other
custom object. Still propose not to validate the type of data being
passed in?
Thanks.
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>Yes because usually you don't expect a list or dictionary but some object
> that *acts* like a list or dictionary. Or you even expect just some
> aspects of the type's behavior. For example that it is something you can
> iterate over.
>
> Ciao,
> Marc 'BlackJack' Rintsch
good point. is
I have the following code which is sent over the wire as a string...
from time import time
class Foo:
def go(self):
print "Time:", time()
I get this code and store it as, "data"
data = receivePythonSource()
Then I try...
exec marshal.loads(data) in my_module.__dict__
However I ge
On Jan 31, 8:02 am, Benjamin Niemann <[EMAIL PROTECTED]> wrote:
> marshal is used to (de)serialize python objects from/to strings.
> marshal.loads() tries to deserialize an encoded string back into a python
> object - which does not make sense here.
> What you probably want is:
>
> exec data in my_
I am having trouble with pyHook on python 2.4.1. Basically I have a
python app that uses pyHook to capture keyboard events and write them
straight to a file. The application is running as a service on a
windows machine. If I am at that windows machine the application
works just fine, logging my
I'd pick, Dive Into Python (http://www.diveintopython.org/) you
can read it online for FREE!
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anyone?
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Is there a way to capture key strokes on a system using python (other
than pyHook)? can wxPython capture keystrokes for the system (not
just, say a text box)?
thanks
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I have a single jython file, foo.py which contains multiple classes. I
read that into a string and try to exec itbut I get errors saying
something like unable to load class. It seems to work fine if foo.py
only contains a single class, any ideas?
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the error i get when i run the exec is, "java.lang.ClassFormatError"...
thanks
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I have a script which zips up a directory, once it does with that
(before it closes the zip file) I want to replace a file that was added
to the zip, say "Foo.txt".
So I tried this...
[code]
z = zipfile.ZipFile("blah.zip", "w")
# zip the directory
#...
z.writestr("c:\\path\\to\\current\\foo_txt_fi
http://www.parttimejobsu.blogspot.com/
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Anyone know if (and when) the talks from PyCon2006 will be available
for download. I am particularly interested in the tutorials (as they
did not have them at PyCono2005).
Thanks.
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Max M wrote:
> http://us.pycon.org/AudioVideoRecording/HomePage
Thanks, after going to the URL, I clicked "talks" and got to
http://us.pycon.org/talks ...this page lets u pick which talks you
want to access.
thanks.
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well actually, the site looked promising...only problem is no talks
have audio, video or handouts available (at least right now).
oh well.
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When I call:
pythoncom.PumpMessages()
...it blocks at that line. According to the docs, it says it will run
until it receives a WM_QUITso I try to create a separate thread and
do
import win32api
win32api.PostQuitMessage()
...but the code is still blocking at PumpMessages. Any ideas? othe
When I call:
pythoncom.PumpMessages()
...it blocks at that line. According to the docs, it says it will run
until it receives a WM_QUITso I try to create a separate thread and
do
import win32api
win32api.PostQuitMessage()
...but the code is still blocking at PumpMessages. Any ideas? othe
anyone have v2.x of pysqlite that I could download? the website is
down for a hardware upgrade with no date as to when it will be back.
I checked sourceforge but there are no files there to download.
thanks.
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