Re: YOU MUST KNOW THIS MAN
Piet van Oostrum wrote: Deltantor [EMAIL PROTECTED] (D) wrote: D Does c.l.python get religious spam that much? Of all of the places to be D spammed the least likely I expected would be here. Is that the reason you find it necessary to repeat it? Sorry, was busy and forgot to clean up the post. I sometimes forget that some people dont have an unlimited usenet account. -- http://mail.python.org/mailman/listinfo/python-list
Re: Timezones in python
On 5 Dec, 13:59, Gabriel Genellina [EMAIL PROTECTED] wrote:
En Wed, 05 Dec 2007 06:43:49 -0300, [EMAIL PROTECTED] escribió:
Thanks guys for your answers! I know those library's but I was
wondering is there something build-in for this simple convert convert.
I have to do it only from +4 to +0.
Copying the example from the tzinfo docs:
from datetime import tzinfo, timedelta, datetime
ZERO = timedelta(0)
HOUR = timedelta(hours=1)
# A class building tzinfo objects for fixed-offset time zones.
# Note that FixedOffset(0, UTC) is a different way to build a
# UTC tzinfo object.
class FixedOffset(tzinfo):
Fixed offset in minutes east from UTC.
def __init__(self, offset, name):
self.__offset = timedelta(minutes = offset)
self.__name = name
def utcoffset(self, dt):
return self.__offset
def tzname(self, dt):
return self.__name
def dst(self, dt):
return ZERO
UTC = FixedOffset(0, 'UTC')
Argentina = FixedOffset(-3*60, 'UTC-3')
UTCPlus4 = FixedOffset(4*60, 'UTC+4')
py now = datetime.now(Argentina)
py print now.strftime('%c %Z')
12/05/07 10:52:28 UTC-3
py print now.astimezone(UTC).strftime('%c %Z')
12/05/07 13:52:28 UTC
py print now.astimezone(Argentina).strftime('%c %Z')
12/05/07 10:52:28 UTC-3
py print now.astimezone(UTCPlus4).strftime('%c %Z')
12/05/07 17:52:28 UTC+4
--
Gabriel Genellina
Thank you that iwll help a lot
--
http://mail.python.org/mailman/listinfo/python-list
Re: Python is not a good name, should rename to Athon
Piet van Oostrum [EMAIL PROTECTED] wrote in news:[EMAIL PROTECTED]: Adrian Cherry [EMAIL PROTECTED] (AC) wrote: AC For that matter C# is no better, I thought that # was pronounced AC hash, I still refer to C# as C-hash. Are you musically illiterate? Yup! The limits of my musically ability is Spam, spam, spam, spam. Lovely spam! Wonderful spaaam! Lovely spam! Wonderful spam. Spa-a-a-a-a-a-a-am! Spa-a-a-a-a-a-a-am! Is that a problem? It's still a hash sign to me. Adrian -- http://mail.python.org/mailman/listinfo/python-list
RE: Timeout test hangs IDLE
I once made a small app that used threads on IDLE.
There was a strange error when using 'print' threads. When
what I printed filled the entire screen, instead of moving
all the text up, IDLE just hanged. Try running your code from
the shell instead, to see if the problem is in IDLE.
HTH,
Sergio
It looks like there's two issues here, an IDLE problem and a me
problem ;o)
I changed the countTest function to time.sleep(10) rather than a big
loop. When I run the script from the command line, the timeout triggers
properly after 5 seconds but the countTest function (running in a
seperate thread now) continues for the whole 10 seconds. This is the
me problem. I though that the timeout function would kill the
countTest thread, but it seems like it doesn't do that. Rather, the
timout just returns after 5 seconds with the message that the countTest
thread is still alive. I guess I need to set event flags so the
countTest function can end itself rather than trying to kill it from the
main thread?
When I run it from IDLE, everything runs correctly, but after the
countTest thread ends after 10 seconds, IDLE hangs as before. IDLE bug,
maybe?
Thanks for the help everyone.
The code looks like this now.
def countTest():# Succeeds from the command line, hangs in IDLE
import time
time.sleep(10)
return True
def timeout(func, args=(), kwargs={}, timeout_duration=1, default=None):
import threading
class InterruptableThread(threading.Thread):
def __init__(self):
threading.Thread.__init__(self)
self.result = None
def run(self):
try:
self.result = func(*args, **kwargs)
except:
self.result = default
it = InterruptableThread()
it.start()
it.join(timeout_duration)
if it.isAlive():
return default
else:
return it.result
def runTest():
timeout(countTest, timeout_duration=5)
print finished
if __name__ == __main__:
runTest()
--
http://mail.python.org/mailman/listinfo/python-list
Surfing Script
AJ Surfing is a fully functional surfing website with full administration controls. Users need no programming experience to change any site features. It is a complete web application developed using PHP with MYSQL as back-end. Full developer API allows for endless possibilities and use in your own project! Sources: http://www.ajsquare.com/ajsurfing/index.php -- http://mail.python.org/mailman/listinfo/python-list
Re: reloading modules and isinstance()
Tlis schrieb:
On 5 Dec, 13:18, Steven D'Aprano [EMAIL PROTECTED]
cybersource.com.au wrote:
On Tue, 04 Dec 2007 15:41:48 +0100, Diez B. Roggisch wrote:
You just discovered one reason why reload() is a bad idea and IMHO
shouldn't be used at all - as tempting it might be.
I disagree -- I find reload() extremely useful for interactively testing
modules. But I would never dream of using it in production code!
--
Steven.
Please note, that I was using the 'Reload modules' functionality of
the software system in use, rather than the reload() function
directly. I admit, though, that in the background it just may call
reload() ...
With all the problems of the reload() function, I still hope, that
there should be possible to write a safe module 'reloader', that would
fix the references, as required (e.g. by changing the
variable.__class__ references). This should be provided by every
serious Python development environment.
Wishful thinking. If I do
foo = {}
foo['some_key'] = somemodule.SomeClass
somewhere in my code, how do you suppose is reload(somemodule) to know
where in all the world I keep references to that class? Thus it would
essentially have to scan all references to anything, all list contents,
all class-properties, all everything. Which is not feasible.
reload() can be convenient, if you know its limitiations. But it has
some, and they are deeply rooted in the way python works. So you gonna
have to live with it.
Diez
--
http://mail.python.org/mailman/listinfo/python-list
Re: An Object's Type
Bruno Desthuilliers schrieb: [EMAIL PROTECTED] a écrit : Hi, Is it possible to find out if an object is of a certain type or of a type derived from this type? You have the answer, thanks to Diez and Christian. Now unless you have a *very* compelling reason to check the type of an object, *just forget about it*. 9 times out of 10, this is fighting against the language's type system (hint: google for duck typing). So I have to give up the concept that argument types are part of the interface or signature? Honestly, I don't like that. Granted; not having strict type checking makes for great flexibility but the price is you either write typchecking code or let the error propagate into the function or method. I hope type annotations in py3k will allow for something like constraints in C# where you can tell the caller right away she's doing something wrong. greetings Paul BTW: are type annotations to be backported to 2.x? -- http://mail.python.org/mailman/listinfo/python-list
Re: Python surpasses Perl in TIOBE index
On Dec 5, 4:18 pm, George Sakkis [EMAIL PROTECTED] wrote: On Dec 5, 7:34 am, BlueBird [EMAIL PROTECTED] wrote: On Dec 4, 4:08 pm, [EMAIL PROTECTED] wrote: This is *not* an attempt to start yet another Python-versus- AnyOtherProgrammingLanguage flame war, but I thought people might be interested in this: http://www.tiobe.com/tpci.htm Marc I find Ohloh comparisons also useful:http://www.ohloh.net/languages/compare?commit=Updatel0=pythonl0_0=-... What it highlights is that the number of python programmer is growing quicker than the number of perl programmers. Not necessarily; it shows that the count of monthly commits by open source developers is growing, which might be mostly thanks to relatively few dedicated committers rather than an overall increase in the population. I think it's probably more to do with the opinion of version control is held in by the Python and Perl communities. Less pejoratively, Perl's main strength is simple throwaway or single- task scripts that (paraphrasing the perl man page) require a bit more complexity than sed or awk; these sorts of things don't really need version control. Python is more geared to complex applications, so version control comes into play a lot more. It's not a surprise that Python would have more commits then, even back as far as 2000 when Perl was the shizzle. Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
Re: reloading modules and isinstance()
On Thu, 06 Dec 2007 12:21:01 +0100, Diez B. Roggisch [EMAIL PROTECTED]
wrote:
Tlis schrieb:
On 5 Dec, 13:18, Steven D'Aprano [EMAIL PROTECTED]
cybersource.com.au wrote:
On Tue, 04 Dec 2007 15:41:48 +0100, Diez B. Roggisch wrote:
You just discovered one reason why reload() is a bad idea and IMHO
shouldn't be used at all - as tempting it might be.
I disagree -- I find reload() extremely useful for interactively testing
modules. But I would never dream of using it in production code!
--
Steven.
Please note, that I was using the 'Reload modules' functionality of
the software system in use, rather than the reload() function
directly. I admit, though, that in the background it just may call
reload() ...
With all the problems of the reload() function, I still hope, that
there should be possible to write a safe module 'reloader', that would
fix the references, as required (e.g. by changing the
variable.__class__ references). This should be provided by every
serious Python development environment.
Wishful thinking. If I do
foo = {}
foo['some_key'] = somemodule.SomeClass
somewhere in my code, how do you suppose is reload(somemodule) to know
where in all the world I keep references to that class? Thus it would
essentially have to scan all references to anything, all list contents,
all class-properties, all everything. Which is not feasible.
Who says it isn't feasible?
http://twistedmatrix.com/trac/browser/trunk/twisted/python/rebuild.py
Jean-Paul
--
http://mail.python.org/mailman/listinfo/python-list
Re: reloading modules and isinstance()
Jean-Paul Calderone schrieb:
On Thu, 06 Dec 2007 12:21:01 +0100, Diez B. Roggisch
[EMAIL PROTECTED] wrote:
Tlis schrieb:
On 5 Dec, 13:18, Steven D'Aprano [EMAIL PROTECTED]
cybersource.com.au wrote:
On Tue, 04 Dec 2007 15:41:48 +0100, Diez B. Roggisch wrote:
You just discovered one reason why reload() is a bad idea and IMHO
shouldn't be used at all - as tempting it might be.
I disagree -- I find reload() extremely useful for interactively
testing
modules. But I would never dream of using it in production code!
--
Steven.
Please note, that I was using the 'Reload modules' functionality of
the software system in use, rather than the reload() function
directly. I admit, though, that in the background it just may call
reload() ...
With all the problems of the reload() function, I still hope, that
there should be possible to write a safe module 'reloader', that would
fix the references, as required (e.g. by changing the
variable.__class__ references). This should be provided by every
serious Python development environment.
Wishful thinking. If I do
foo = {}
foo['some_key'] = somemodule.SomeClass
somewhere in my code, how do you suppose is reload(somemodule) to know
where in all the world I keep references to that class? Thus it would
essentially have to scan all references to anything, all list contents,
all class-properties, all everything. Which is not feasible.
Who says it isn't feasible?
http://twistedmatrix.com/trac/browser/trunk/twisted/python/rebuild.py
Nice try - for sure. But it seems to be geared towards special cases,
not a general-purpose now reloading really works implementation.
Diez
--
http://mail.python.org/mailman/listinfo/python-list
Re: An Object's Type
paul schrieb: Bruno Desthuilliers schrieb: [EMAIL PROTECTED] a écrit : Hi, Is it possible to find out if an object is of a certain type or of a type derived from this type? You have the answer, thanks to Diez and Christian. Now unless you have a *very* compelling reason to check the type of an object, *just forget about it*. 9 times out of 10, this is fighting against the language's type system (hint: google for duck typing). So I have to give up the concept that argument types are part of the interface or signature? Honestly, I don't like that. Granted; not having strict type checking makes for great flexibility but the price is you either write typchecking code or let the error propagate into the function or method. I hope type annotations in py3k will allow for something like constraints in C# where you can tell the caller right away she's doing something wrong. This is a dead horse beaten into the ground, full way through to china. If you want typechecking - use a statically checked language. After all, if you like to constrain yourself to certain types - why not benefit from a compiler then? I for once prefer to be able to pass object that behaves like e.g. a file - think StringIO - to something taking a file, instead of introducing a interface-maze like the java.io-hierarchy to capture each possible thinkable aspect of file IO in a separate interface - and then hoping that the third party library was careful enough to only require what is really needed. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: SimpleXMLRPCServer interruptable?
On Dec 5, 10:00 pm, Edward Kozlowski [EMAIL PROTECTED] wrote:
On Dec 5, 10:19 pm, Edward Kozlowski [EMAIL PROTECTED] wrote:
On Dec 5, 6:22 pm, Gabriel Genellina [EMAIL PROTECTED] wrote:
En Wed, 05 Dec 2007 18:20:35 -0300, Bret [EMAIL PROTECTED] escribió:
I just tried changing this so that I now have a threading.Event()
called self.done, which is set within the body of the shutdown()
method. The serverWrapper loop now looks like this:
def serverWrapper():
while True:
server.handle_request()
if self.done.isSet():
break
This works, but only if I follow the shutdown() rpc call a few seconds
later with ... something else to cause handle_request() to complete
again. Obviously, not quite the right approach
You could try setting a reasonable timeout on the listening socket; I
would override the server_bind method, calling self.socket.settimeout(xxx)
before calling the inherited method. I've never actually done it with a
SimpleXMLRPCServer, but *should* work. Don't use a very small timeout,
because it affects *all* subsequent operations.
--
Gabriel Genellina
Try this:
def __init__(self, host, port):
self.done = False
server = SimpleXMLRPCServer((host, port))
:
: Bunch of server.register_function calls
:
def serverWrapper():
try:
while not self.done:
server.handle_request()
except:
pass
Your shutdown method becomes:
def shutdown(self):
self.done = True
HTH
-Edward Kozlowski
Sorry about the first post, I shot from the hip and had to make a few
more modifications to make it 'working' code. The example below works
fine for me.
import SimpleXMLRPCServer
class myServer:
def __init__(self, host, port):
self.done = False
self.server = SimpleXMLRPCServer.SimpleXMLRPCServer((host,
port))
def shutdown(self):
self.done = True
return 0
def getName(self):
return Hey, I'm Ed
def serverWrapper(self):
self.server.register_function(self.getName)
self.server.register_function(self.shutdown)
try:
while not self.done:
self.server.handle_request()
except:
pass
if __name__ == __main__:
myServer('localhost', 6058).serverWrapper()
s.getName()
Hey, I'm Ed
s.shutdown()
0
Thanks to all! I'm now keeping a file of my own snippets in hardcopy
so I won't lose them next time I change jobs. :-)
Bret
--
http://mail.python.org/mailman/listinfo/python-list
Re: Python is not a good name, should rename to Athon
Piet van Oostrum wrote: Adrian Cherry [EMAIL PROTECTED] (AC) wrote: AC For that matter C# is no better, I thought that # was pronounced AC hash, I still refer to C# as C-hash. Are you musically illiterate? Note that the notation for the note (!) isn't universal. French speakers for instance write that one do# and call it do dièze. C# reads as unpronounceable linenoise to them. -- http://mail.python.org/mailman/listinfo/python-list
Re: An Object's Type
paul a écrit : Bruno Desthuilliers schrieb: [EMAIL PROTECTED] a écrit : Hi, Is it possible to find out if an object is of a certain type or of a type derived from this type? You have the answer, thanks to Diez and Christian. Now unless you have a *very* compelling reason to check the type of an object, *just forget about it*. 9 times out of 10, this is fighting against the language's type system (hint: google for duck typing). So I have to give up the concept that argument types are part of the interface or signature? Nope - you have to give up the notion of type you learned from statically typed languages, and get used to the one used in dynamically typed languages. Same word, different concept, really. Honestly, I don't like that. Granted; not having strict type checking makes for great flexibility but the price is you either write typchecking code or let the error propagate into the function or method. Just tell me: what will happens if, *in Python*, you write typechecking code ? Surely, when you'll (possibly wrongly[1]) conclude you don't have the correct type (meaning: the one you expected when writing your code[1]), you'll raise an exception, won't you ? (I can't imagine what else...). So ask yourself: in which way will the final result be different from would very probably happens without the typecheking code ? In *both* cases, you end up with a runtime exception. Granted, without typechecking, there can be a couple corner cases where you end up with incorrect results instead of an exception (like your user passed a string where you expected a sequence which is *not* a string). These corner cases might be worth the most minimal possible check. As far as I'm concerned, I've run into this kind of corner case perhaps half a dozen time in 7+ years. And usually because I (as a user of someone else's code) failed to read the doc - which is my responsability, the author's. [1] dynamic typing means that two totally unrelated types may both implement the expected (implied) interface. You just can't hope to know by advance the exhaustive list of classes that will implement the interface your code expects. I hope type annotations in py3k will allow for something like constraints in C# where you can tell the caller right away she's doing something wrong. Lord have mercy. As Diez mentions, if you want static type checking, then don't use a dynamically typed language. But trying to fight against the language is not going to buy you much. -- http://mail.python.org/mailman/listinfo/python-list
Re: reloading modules and isinstance()
On Thu, 06 Dec 2007 13:59:00 +0100, Diez B. Roggisch [EMAIL PROTECTED] wrote: [snip] Who says it isn't feasible? http://twistedmatrix.com/trac/browser/trunk/twisted/python/rebuild.py Nice try - for sure. But it seems to be geared towards special cases, not a general-purpose now reloading really works implementation. What special cases? I won't argue that it works for every case, but the failure modes are really defined by special cases in Python, not the other way around. Maybe that's what you meant, I'm not sure. Jean-Paul -- http://mail.python.org/mailman/listinfo/python-list
ANN: UliPad 3.8 released!
UliPad is a flexible editor, based on wxPython. It's has many features,just like:class browser, code auto-complete, html viewer, directory browser, wizard, etc. The main feature is the usage of mixin. This makes UliPad can be extended easily. So you can write your own mixin or plugin, or simple script, these can be easy and seamless integrated with UliPad. What's new in 3.8 === New Features and Changes: #. Add mako template syntax highlight support #. Add new option in preference, [Python]-Automatically save modified file when running python program, if it's checked, it'll automatically save the modified file. #. Add Shift+Delete = Cut, Shift+Insert = Paste #. Upgrade winpdb to lastest version #. Now you can set pythonpath option in config.ini/[default], and ulipad will insert it into the sys.path. pythonpath can be a string or a string list of directory. #. Svn support, you should install pysvn first, and also support proxy. #. Change long line indicator default is true. #. Add doctest support, you can run the doctest of current document in UliPad #. Add time stamp info in debug and error file #. Replace the shell window popup menu, and add Copy Without Prompts and Paste and Run menu items. And if the result cann't be convert to unicode, then display the result as repr(). #. Script Manager can find menu name from the script content, you can define it as a comment line, format is: #\s*name:(.*)$ #. Add Run in Shell menu item in Editor context menu #. Add script and shell key binding. Change Shell to External Tool #. Change Find in Files dialog to panel #. Using meide module to create Preference dialog #. Add an option to control if show the docstring in class browser window. #. Don't create a tmp file again, directly save the file #. Improve Find in Files process with thread #. Add some config.ini options support in Preference Dialog #. Refactor Find Replace with pane, but not dialog #. Made Open Command Here work in Linux #. Add dropfile plugin. thanks Tyberius Prime. Now you can drop files on toolbar, then UliPad will open it. Just like drop files on Directory Browser window. #. Add new custom lexer class and refactor related lexer process #. Upgrade FlatNotebook.py to lastest version, thanks to swordsp #. Improve default identifiers process, add type judgement #. Add pylint plugin Bug fix: #. Fix print bug, add print line number functionality #. Fix snippet template indent bug(when using tab mode, the '\t' in template will be replaced with spaces). And you can press Alt+Q to cancel current snippet. #. Fix press Ctrl+B jump position is not correct bug. #. Fix that when you change the file type, the icon in directory and dynamic menu don't change bug #. Fix line number margin width, and find back End-of-line Marker menu #. Fix adding empty directory error #. Fix open un-exists file will popup two message dialog bug #. Fix line end mix checking bug also including twice prompt dialog bug #. Fix webbrowser bug. Thanks Tom Eubank #. Fix message console postion bug, thanks for swordsp UliPad has been ported to code.google.com, so you can visit the new project site at: http://code.google.com/p/ulipad, and also visit the new svn address. Recommends using source version. Source Code: http://ulipad.googlecode.com/files/ulipad.3.8.zip Win Execute Code: http://ulipad.googlecode.com/files/ulipad.3.8.exe If you have any suggestion or question, please subscribe the ulipad mailling list: http://groups.google.com/group/UliPad -- I like python! UliPad The Python Editor: http://code.google.com/p/ulipad/ meide wxPython UI module: http://code.google.com/p/meide/ My Blog: http://www.donews.net/limodou -- http://mail.python.org/mailman/listinfo/python-list
Re: Python is not a good name, should rename to Athon
Adrian Cherry [EMAIL PROTECTED] (AC) wrote: AC Piet van Oostrum [EMAIL PROTECTED] wrote in AC news:[EMAIL PROTECTED]: Adrian Cherry [EMAIL PROTECTED] (AC) wrote: AC For that matter C# is no better, I thought that # was pronounced AC hash, I still refer to C# as C-hash. Are you musically illiterate? AC Yup! The limits of my musically ability is AC Spam, spam, spam, spam. AC Lovely spam! Wonderful spaaam! AC Lovely spam! Wonderful spam. AC Spa-a-a-a-a-a-a-am! Spa-a-a-a-a-a-a-am! AC Is that a problem? It's still a hash sign to me. No problem, but if you know music notation, C# will ring a bell. -- Piet van Oostrum [EMAIL PROTECTED] URL: http://www.cs.uu.nl/~piet [PGP 8DAE142BE17999C4] Private email: [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
splitting a words of a line
Hi , I am trying to splitt a Line whihc is below of format , AzAccept PLYSSTM01 [23/Sep/2005:16:14:28 -0500] 162.44.245.32 CN= cojack (890),OU=1,OU=Customers,OU=ISM-Users,OU=kkk Secure,DC=customer,DC=rxcorp,DC=com plysmhc03zp GET /mci/performance/ SelectProducts.aspx? p=0V=Ca=29menu=adhoc [d4b62ca2-09a0-4334622b-0e1c-03c42ba5] [0] Here all the string whihc i want to split is - AzAccept PLYSSTM01 [23/Sep/2005:16:14:28 -0500] 162.44.245.32 CN= cojack (890),OU=1,OU=Customers,OU=ISM-Users,OU=kkk Secure,DC=customer,DC=rxcorp,DC=com GET /mci/performance/SelectProducts.aspx?p=0V=Ca=29menu=adhoc d4b62ca2-09a0-4334622b-0e1c-03c42ba5 0 i am trying to use re.split() method to split them , But unable to get the exact result . Any help on this is highly appriciated . Thanks Sumit -- http://mail.python.org/mailman/listinfo/python-list
which configparse?
I have all my options setup with optparse. Now, I'd like to be able to parse an ini file to set defaults (that could be overridden by command line switches). I'd like to make minimal change to my working optparse setup (there are lots of options - I don't want to duplicate all the cmdline parsing with ini file parsing code) I've looked at configparse, cfgparse, iniparse. configparse looks like what I want, but it seems last commit was 2years ago. What is the best choice? -- http://mail.python.org/mailman/listinfo/python-list
multidimensional arrays
in python, when I want to use arrays, I follow this way; DATA = [0] * nint and when I want to use I do; DATA[i] = do you know how to do similar but in two dimensions ? thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: multidimensional arrays
Horacius ReX: do you know how to do similar but in two dimensions ? nr = 3 nc = 4 [[None] * nc for _ in xrange(nr)] [[None, None, None, None], [None, None, None, None], [None, None, None, None]] Bye, bearophile -- http://mail.python.org/mailman/listinfo/python-list
Re: SimpleXMLRPCServer interruptable?
On Dec 6, 7:04 am, Bret [EMAIL PROTECTED] wrote:
On Dec 5, 10:00 pm, Edward Kozlowski [EMAIL PROTECTED] wrote:
On Dec 5, 10:19 pm, Edward Kozlowski [EMAIL PROTECTED] wrote:
On Dec 5, 6:22 pm, Gabriel Genellina [EMAIL PROTECTED] wrote:
En Wed, 05 Dec 2007 18:20:35 -0300, Bret [EMAIL PROTECTED] escribió:
I just tried changing this so that I now have a threading.Event()
called self.done, which is set within the body of the shutdown()
method. The serverWrapper loop now looks like this:
def serverWrapper():
while True:
server.handle_request()
if self.done.isSet():
break
This works, but only if I follow the shutdown() rpc call a few seconds
later with ... something else to cause handle_request() to complete
again. Obviously, not quite the right approach
You could try setting a reasonable timeout on the listening socket; I
would override the server_bind method, calling
self.socket.settimeout(xxx)
before calling the inherited method. I've never actually done it with a
SimpleXMLRPCServer, but *should* work. Don't use a very small timeout,
because it affects *all* subsequent operations.
--
Gabriel Genellina
Try this:
def __init__(self, host, port):
self.done = False
server = SimpleXMLRPCServer((host, port))
:
: Bunch of server.register_function calls
:
def serverWrapper():
try:
while not self.done:
server.handle_request()
except:
pass
Your shutdown method becomes:
def shutdown(self):
self.done = True
HTH
-Edward Kozlowski
Sorry about the first post, I shot from the hip and had to make a few
more modifications to make it 'working' code. The example below works
fine for me.
import SimpleXMLRPCServer
class myServer:
def __init__(self, host, port):
self.done = False
self.server = SimpleXMLRPCServer.SimpleXMLRPCServer((host,
port))
def shutdown(self):
self.done = True
return 0
def getName(self):
return Hey, I'm Ed
def serverWrapper(self):
self.server.register_function(self.getName)
self.server.register_function(self.shutdown)
try:
while not self.done:
self.server.handle_request()
except:
pass
if __name__ == __main__:
myServer('localhost', 6058).serverWrapper()
s.getName()
Hey, I'm Ed
s.shutdown()
0
Thanks to all! I'm now keeping a file of my own snippets in hardcopy
so I won't lose them next time I change jobs. :-)
Bret
Oops, this actually misses part of the problem -- I need to construct
this server programmatically, so imbedding the call to start the
server in the if __name__ construct doesn't work. If I start it
within the __init__, then the object that's creating it gets stuck
waiting for it to finish, which it never will. I need this to be
autonomous, which is why I was trying to do the start of the server in
a separate thread, but that doesn't seem to work either (that's what's
causing my process to need the second call; the thread completes the
loop and enters the next handle_request() call before the event or
boolean gets set).
Basically, I need a way for one server to start other autonomous
servers without waiting on them, and still retain the ability to shut
them down when their work is done.
Back to the keyboard. ;-)
Bret
--
http://mail.python.org/mailman/listinfo/python-list
Re: which configparse?
Best, is naturally, a somewhat subjective evaluation. That being said, configparser is well regarded. I have also seen these two options that you might want to check out: http://wiki.woodpecker.org.cn/moin/Dict4Ini http://www.voidspace.org.uk/python/configobj.html I have all my options setup with optparse. Now, I'd like to be able to parse an ini file to set defaults (that could be overridden by command line switches). I'd like to make minimal change to my working optparse setup (there are lots of options - I don't want to duplicate all the cmdline parsing with ini file parsing code) I've looked at configparse, cfgparse, iniparse. configparse looks like what I want, but it seems last commit was 2years ago. What is the best choice? -- Shane Geiger IT Director National Council on Economic Education [EMAIL PROTECTED] | 402-438-8958 | http://www.ncee.net Leading the Campaign for Economic and Financial Literacy signature.asc Description: OpenPGP digital signature -- http://mail.python.org/mailman/listinfo/python-list
Re: An Object's Type
Bruno Desthuilliers [EMAIL PROTECTED] writes: So ask yourself: in which way will the final result be different from would very probably happens without the typecheking code ? In *both* cases, you end up with a runtime exception. The idea behind such type checks is to make sure type errors are caught as early as possible. Exceptions caught later, the philosophy goes, are harder to debug because by then the cause of the problem can be obscured. Consider an object of the wrong type passed to a method: the method can store the object in its own instance attribute, and keep working on something else. Then, much later, the faulty object gets actually used and the error is raised. By the time the exception is thrown, you have no idea where the offending object came from. Personally, I consider the loss in flexibility to outweigh any benefits of overeager type checks. Besides, type checks are only one of the many possible constraints you could check in your objects, yet proponents of type checks tend to treat them as somehow much more important or fundamental. Hopefully Python 3's support for abstract base classes will provide a standard way to have our cake and eat it by allowing declarative subtypes. That way type checks will be possible to prevent accidents, but without compromising flexibility. Pure duck typing will be made a bit more verbose, but not impossibly so. -- http://mail.python.org/mailman/listinfo/python-list
Re: multidimensional arrays
Horacius ReX wrote: do you know how to do similar but in two dimensions ? Investigate the numpy module if you are dealing with numbers. Jeremy -- Jeremy Sanders http://www.jeremysanders.net/ -- http://mail.python.org/mailman/listinfo/python-list
Re: multidimensional arrays
Hi, DATA = [ [ 0 for i in range(ncolumns) ] for i in range(nrows) ] Is one way. DON'T do it like this: row = [0] * ncolumns data = [ row ] * nrows # WRONG! Since after that, every row is the exact same object; if you set data[0][0] = 1, the first element of _every_ row is 1. But I guess you already found out about that :-) That said, are you sure a list of lists is the best data structure for what you're trying to do? I keep being surprised by Python code that uses other data structures in clever ways; lists of lists seem to be pretty rare! Remco Gerlich On Dec 6, 2007 4:29 PM, Horacius ReX [EMAIL PROTECTED] wrote: in python, when I want to use arrays, I follow this way; DATA = [0] * nint and when I want to use I do; DATA[i] = do you know how to do similar but in two dimensions ? thanks -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: SimpleXMLRPCServer interruptable?
On Dec 6, 7:04 am, Bret [EMAIL PROTECTED] wrote:
On Dec 5, 10:00 pm, Edward Kozlowski [EMAIL PROTECTED] wrote:
On Dec 5, 10:19 pm, Edward Kozlowski [EMAIL PROTECTED] wrote:
On Dec 5, 6:22 pm, Gabriel Genellina [EMAIL PROTECTED] wrote:
En Wed, 05 Dec 2007 18:20:35 -0300, Bret [EMAIL PROTECTED] escribió:
I just tried changing this so that I now have a threading.Event()
called self.done, which is set within the body of the shutdown()
method. The serverWrapper loop now looks like this:
def serverWrapper():
while True:
server.handle_request()
if self.done.isSet():
break
This works, but only if I follow the shutdown() rpc call a few seconds
later with ... something else to cause handle_request() to complete
again. Obviously, not quite the right approach
You could try setting a reasonable timeout on the listening socket; I
would override the server_bind method, calling
self.socket.settimeout(xxx)
before calling the inherited method. I've never actually done it with a
SimpleXMLRPCServer, but *should* work. Don't use a very small timeout,
because it affects *all* subsequent operations.
--
Gabriel Genellina
Try this:
def __init__(self, host, port):
self.done = False
server = SimpleXMLRPCServer((host, port))
:
: Bunch of server.register_function calls
:
def serverWrapper():
try:
while not self.done:
server.handle_request()
except:
pass
Your shutdown method becomes:
def shutdown(self):
self.done = True
HTH
-Edward Kozlowski
Sorry about the first post, I shot from the hip and had to make a few
more modifications to make it 'working' code. The example below works
fine for me.
import SimpleXMLRPCServer
class myServer:
def __init__(self, host, port):
self.done = False
self.server = SimpleXMLRPCServer.SimpleXMLRPCServer((host,
port))
def shutdown(self):
self.done = True
return 0
def getName(self):
return Hey, I'm Ed
def serverWrapper(self):
self.server.register_function(self.getName)
self.server.register_function(self.shutdown)
try:
while not self.done:
self.server.handle_request()
except:
pass
if __name__ == __main__:
myServer('localhost', 6058).serverWrapper()
s.getName()
Hey, I'm Ed
s.shutdown()
0
Thanks to all! I'm now keeping a file of my own snippets in hardcopy
so I won't lose them next time I change jobs. :-)
Bret
For completeness, what I ended up doing is this:
server = SimpleXMLRPCServer((host, port))
server.socket.settimeout(0.1)
ServerWrapper became:
def ServerWrapper():
while True:
try:
server.handle_request()
if self.done.isSet():
break
except timeout:
pass
And that seems to do the trick! Giving the socket a timeout allows me
to check the Event more frequently and catch the change within a
reasonable time.
Thanks again, Ed and Gabriel.
Bret
--
http://mail.python.org/mailman/listinfo/python-list
Re: Python is not a good name, should rename to Athon
Boris Borcic wrote: Piet van Oostrum wrote: Adrian Cherry [EMAIL PROTECTED] (AC) wrote: AC For that matter C# is no better, I thought that # was pronounced AC hash, I still refer to C# as C-hash. Are you musically illiterate? Note that the notation for the note (!) isn't universal. French speakers for instance write that one do# and call it do dièze. C# reads as unpronounceable linenoise to them. In a german text it would be Cis. And in real musical notation the sharpener doesn't look like '#', only similar. -- http://mail.python.org/mailman/listinfo/python-list
JSON
i tried a couple python json libraries. i used simplejson on the
server and was using cjson on the client, but i ran into this issue.
i'm now using simplejson on both sides, but i'm still interested in
this issue. did i do something wrong? is there a bug in one of the
libraries? or something i don't understand about the json spec?
i problem is the line where i call cjson.decode() below:
import simplejson
import cjson
sj = simplejson.dumps('http://server.com')
sj
'http:\\/\\/server.com'
cj = cjson.encode('http://server.com')
cj
'http://server.com;'
simplejson.loads(cj)
u'http://server.com'
cjson.decode(cj)
'http://server.com'
simplejson.loads(sj)
u'http://server.com'
cjson.decode(sj)
'http:\\/\\/server.com' # is this correct
is that last statement really correct?
thanks,
bryan
--
http://mail.python.org/mailman/listinfo/python-list
New subclass vs option in __init__
Hi List: Class inheritance noob here. For context, I have the following base class and subclass: class Base(object): def __init__(self, val): self.val = val class Derived1(Base): def __init__(self, val): super(Derived1, self).__init__(val) I'm curious as to other's thoughts on the following: when incorporating optional behavior differences for a subclass, do you a) make a new subclass (e.g., 'Derived2') and override (and add new) methods that would encapsulate the new behavior, or b) keep the same subclass around (i.e., 'Derived1'), but add an initialization option that would specify the different behavior, and check for the value of this option in the different methods? It would seem that there are cases where one would be preferable over the other: a) when the new behavior would modify a large portion of the existing subclass, making a new subclass would be ideal; b) when the new behavior changes only slightly the existing subclass, perhaps a simple default option in the subclass's __init__ method would be best. Where is the tipping point? Since one cannot predict what direction the new behavior might take things, should one usually err on the side of a new subclass? Is option b) just being lazy? Is a) too verbose in many situations? Kurt -- http://mail.python.org/mailman/listinfo/python-list
pipeline encoding
My locale is set to UTF-8. The command: python -c print u'\u03A9' gives me the desired result and doesn't produce any error. But when I want to redirect the output to a file I invoke: python -c print u'\u03A9' file.txt I get an error: File string, line 1, in module UnicodeEncodeError: 'ascii' codec can't encode character u'\u03a9' in position 0: ordinal not in range(128) How to cope with it? -tt. -- http://mail.python.org/mailman/listinfo/python-list
Best way to merge/sort two sorted lists?...
...is to forget they are sorted??? While trying to optimize some NUCULAR libraries I discovered that the best way to merge 2 sorted lists together into a new sorted list is to just append them and re-sort. The following test case demonstrates this. It can be criticized in many ways: it only tests lists of the same size, it only uses hashed data, etcetera... Still, my testing shows resort everything is consistently two times faster than an explicit python merge even for fairly large data. I'm beginning to think a sorted list merger might make a nice tiny extension module (at least for my purposes). See timing demonstration code below. Let me know if there is a better way or if the test is fatally flawed, please. --- Aaron Watters http://www.xfeedme.com/nucular/pydistro.py/go?FREETEXT=greedy+bastard ==snip: test code below test different ways to merge two sorted lists def ObviousMerge(L1, L2): obvious way len1 = len(L1) len2 = len(L2) resultlen = len1+len2 result = [None] * resultlen count = 0 index1 = 0 index2 = 0 while countresultlen: if index1len1: elt1 = L1[index1] if index2len2: elt2 = L2[index2] if elt1elt2: result[count] = elt1 index1+=1 else: result[count] = elt2 index2+=1 else: result[count] = elt1 index1+=1 else: result[count] = L2[index2] index2+=1 count+=1 return result def AggregateTailMerge(L1, L2): obvious way, aggregating the tail len1 = len(L1) len2 = len(L2) resultlen = len1+len2 result = [None] * resultlen count = 0 index1 = 0 index2 = 0 while index1len1 and index2len2: elt1 = L1[index1] elt2 = L2[index2] if elt1elt2: result[count] = elt1 index1+=1 else: result[count] = elt2 index2+=1 count+=1 if index1len1: result[count:] = L1[index1:] if index2len2: result[count:] = L2[index2:] return result # could aggregate head and tail using bisect: skipped def ResortEverythingMerge(L1, L2): aggregate everything using list append and sort result = L1+L2 result.sort() return result mergeFunctions = [ResortEverythingMerge, ObviousMerge, AggregateTailMerge, ] # make some test data def makeAListOfHashes(length, data): import md5 return [md5.md5(str(i)+data).hexdigest() for i in xrange(length)] print constructing global test data SIZES = [10, 100, 1000, 1, 10, 100] LISTS = [ (L, makeAListOfHashes(L,A), makeAListOfHashes(L, B) ) for L in SIZES ] for (length, L1, L2) in LISTS: L1.sort() L2.sort() print done with making global test data print def timings(mergerFunction): from time import time fname = mergerFunction.__name__ print print now timing, mergerFunction print for (length, L1, L2) in LISTS: now = time() result = f(L1, L2) elapsed = time() - now printfor, length, elapsed %3.5f%elapsed, for, fname if __name__==__main__: print print running timings for f in mergeFunctions: timings(f) snip run output below: constructing global test data done with making global test data running timings now timing function ResortEverythingMerge at 0x204f4de8 for 10 elapsed 0.3 for ResortEverythingMerge for 100 elapsed 0.6 for ResortEverythingMerge for 1000 elapsed 0.00057 for ResortEverythingMerge for 1 elapsed 0.00626 for ResortEverythingMerge for 10 elapsed 0.12484 for ResortEverythingMerge for 100 elapsed 1.60117 for ResortEverythingMerge now timing function ObviousMerge at 0x204f47d0 for 10 elapsed 0.8 for ObviousMerge for 100 elapsed 0.00027 for ObviousMerge for 1000 elapsed 0.00259 for ObviousMerge for 1 elapsed 0.02587 for ObviousMerge for 10 elapsed 0.27862 for ObviousMerge for 100 elapsed 2.89965 for ObviousMerge now timing function AggregateTailMerge at 0x204f4cf8 for 10 elapsed 0.8 for AggregateTailMerge for 100 elapsed 0.00025 for AggregateTailMerge for 1000 elapsed 0.00246 for AggregateTailMerge for 1 elapsed 0.02366 for AggregateTailMerge for 10 elapsed 0.26594 for AggregateTailMerge for 100 elapsed 2.77103 for AggregateTailMerge -- http://mail.python.org/mailman/listinfo/python-list
Re: Python is not a good name, should rename to Athon
Boris Borcic a écrit : Piet van Oostrum wrote: Adrian Cherry [EMAIL PROTECTED] (AC) wrote: AC For that matter C# is no better, I thought that # was pronounced AC hash, I still refer to C# as C-hash. Are you musically illiterate? Note that the notation for the note (!) isn't universal. French speakers for instance write that one do# and call it do dièze. C# reads as unpronounceable linenoise to them. Strange as it might be, some french speakers also know the english notation... -- http://mail.python.org/mailman/listinfo/python-list
Re: New subclass vs option in __init__
Kurt Smith a écrit : Hi List: Class inheritance noob here. For context, I have the following base class and subclass: class Base(object): def __init__(self, val): self.val = val class Derived1(Base): def __init__(self, val): super(Derived1, self).__init__(val) I'm curious as to other's thoughts on the following: when incorporating optional behavior differences for a subclass, do you a) make a new subclass (e.g., 'Derived2') and override (and add new) methods that would encapsulate the new behavior, or b) keep the same subclass around (i.e., 'Derived1'), but add an initialization option that would specify the different behavior, and check for the value of this option in the different methods? You forgot the strategy pattern : extract the different behaviours into other objects (in Python, usually callback functions or custom callables) that are passed to the initializer and called when appropriate. This keeps a clean encapsulation of variations (ie you don't have to add new conditions and tests in your class) while avoiding class proliferation. Inheritance - while useful - is a bit oversold IMHO, specially in the context of a dynamic language. FWIW, inheritance is just a special case of composition/delegation... -- http://mail.python.org/mailman/listinfo/python-list
ANNOUNCE: Resolver One public Beta now live
We're proud to announce that today Resolver One, our flagship application, entered its public Beta phase. It can be downloaded from http://www.resolversystems.com/download/ (free registration required), and we would very much welcome feedback from the Python community. Resolver One is a Rapid Application Development tool for analysing and presenting business data using a familiar spreadsheet interface - or, to put it another way, it is a mash-up of a spreadsheet and an IDE. As you enter formulae on the grid, it writes the equivalent IronPython code for you. As you add your own IronPython code, the grid is updated. This allows you to build applications that are much more complex but better-structured than a traditional spreadsheet, much more quickly than you could if you were using a regular programming language. You can then export the code and re-use it elsewhere in your own programs. It's primarily targetted at heavy users of number-crunching software, such as financial firms and the biotech industry, but we use it internally for all kinds of scripts, so we think any Python programmer will be able to do fun stuff with it. If you're interested in taking a look, please do download it or drop us a line! Best regards, Giles -- Giles Thomas MD CTO, Resolver Systems Ltd. [EMAIL PROTECTED] +44 (0) 20 7253 6372 17a Clerkenwell Road, London EC1M 5RD, UK VAT No.: GB 893 5643 79 Registered in England and Wales as company number 5467329. Registered address: 843 Finchley Road, London NW11 8NA, UK -- http://mail.python.org/mailman/listinfo/python-list
Re: pipeline encoding
Diez B. Roggisch:
Python tries and guesses the stdout-encoding based on the terminal
settings. So the first print works.
However, piping to a file means that it can't do so, because it doesn't
(and shouldn't) make any assumptions on the output encoding desired -
after all, it might be appending to a XML-file with e.g. latin1
encoding.
So you need to explictely encode the unicode-object with the desired
encoding:
python -c print u'\u03A9'.encode('utf-8') file.txt
Thanks. It is a solutiona to my problem but:
Are there any command line option for telling python what encoding to use
for stdout?
To be honest I have a more complicated program than the example that I
have presented - there are many print commands inside and it is not very
feasible for me to put .encode('utf-8') inside every print occurence.
-tt.
--
http://mail.python.org/mailman/listinfo/python-list
Re: An Object's Type
Hrvoje Niksic a écrit : Bruno Desthuilliers [EMAIL PROTECTED] writes: So ask yourself: in which way will the final result be different from would very probably happens without the typecheking code ? In *both* cases, you end up with a runtime exception. The idea behind such type checks is to make sure type errors are caught as early as possible. Exceptions caught later, the philosophy goes, are harder to debug because by then the cause of the problem can be obscured. Consider an object of the wrong type passed to a method: the method can store the object in its own instance attribute, and keep working on something else. Then, much later, the faulty object gets actually used and the error is raised. By the time the exception is thrown, you have no idea where the offending object came from. That's the theory, yes. In practice, when such a situation occurs, it's usually easy to track down the problem: just add a temporary check in the method (or around it - using a decorator), rerun the program and you'll be done. Once the faulty code is corrected, remove the check. -- http://mail.python.org/mailman/listinfo/python-list
logging.py: mutiple system users writing to same file getting permission errors.
An a redhat box I have root, apache and other normal users run code that uses the logging module to write to the same log file. Since umasks are set to 2 or 022 this gets permission errors. I have fixed my issue by patching the logging code everywhere there is an open for write with: try: old_umask = os.umask(0) # open for write here finally: os.umask(old_umask) Is there a better way to solve this issue? Are there any security problems with this solution other than the log file not being protected? -- http://mail.python.org/mailman/listinfo/python-list
Capture DOS error???
Did you ever get a solution to this? I am also in need of this solution. Thanks, Erik -- http://mail.python.org/mailman/listinfo/python-list
Re: pipeline encoding
Tomasz Toczyski [EMAIL PROTECTED] writes:
My locale is set to UTF-8. The command:
python -c print u'\u03A9'
gives me the desired result and doesn't produce any error.
But when I want to redirect the output to a file I invoke:
python -c print u'\u03A9' file.txt
I get an error:
File string, line 1, in module
UnicodeEncodeError: 'ascii' codec can't encode character u'\u03a9' in
position 0: ordinal not in range(128)
How to cope with it?
If you print to a terminal Python can use terminal encoding,
but if you redirect to a file Python doesn't know
what encoding to use (e.g. how was encoded existing file)
and refuses to guess.
You have to specify that encoding explicit:
python -c print u'\u03A9'.encode('utf-8') file.txt
HTH,
Rob
--
http://mail.python.org/mailman/listinfo/python-list
Re: Best way to merge/sort two sorted lists?...
Aaron Watters wrote: ...is to forget they are sorted??? code snipped Aaron I just flung your python merge code into pyrex and the results show that the iteration overhead can be brought down without much effort. The real deal would presumably be to start using pointers into the result list rather than the generic python type code which I have used. I haven't done much of that with pyrex yet, but I believe others do that all the time with these predetermined list lengths. The pyrex code doesn't look too different from python that it puts them off (I guess). I'm guessing a lot of the pyrex time is spent incrementing and decrementing refcounts etc etc and that can clearly be made more efficient. Also since None is being used as a place holder we could eliminate that by using null or undefined initial contents for the result lists thus saving time decrementing None's refcount since each result list element is only accessed once. start obvmerge.pyx def PyxObviousMerge(L1, L2): obvious way cdef int len1, len2, resultlen, index1, index2 len1 = len(L1) len2 = len(L2) resultlen = len1+len2 result = [None] * resultlen count = 0 index1 = 0 index2 = 0 while countresultlen: if index1len1: elt1 = L1[index1] if index2len2: elt2 = L2[index2] if elt1elt2: result[count] = elt1 index1 = index1+1 else: result[count] = elt2 index2 = index2 + 1 else: result[count] = elt1 index1 = index1+1 else: result[count] = L2[index2] index2=index2+1 count = count + 1 return result def PyxAggregateTailMerge(L1, L2): obvious way, aggregating the tail cdef int len1, len2, resultlen, index1, index2 len1 = len(L1) len2 = len(L2) resultlen = len1+len2 result = [None] * resultlen count = 0 index1 = 0 index2 = 0 while index1len1 and index2len2: elt1 = L1[index1] elt2 = L2[index2] if elt1elt2: result[count] = elt1 index1= index1+1 else: result[count] = elt2 index2 = index2+1 count=count+1 if index1len1: result[count:] = L1[index1:] if index2len2: result[count:] = L2[index2:] return result end obvmerge.pyx ==test results C:\code\users\robintmerge.py constructing global test data done with making global test data running timings now timing function ResortEverythingMerge at 0x00C150F0 for 10 elapsed 0.0 for ResortEverythingMerge for 100 elapsed 0.0 for ResortEverythingMerge for 1000 elapsed 0.0 for ResortEverythingMerge for 1 elapsed 0.0 for ResortEverythingMerge for 10 elapsed 0.06200 for ResortEverythingMerge for 100 elapsed 0.78100 for ResortEverythingMerge now timing function ObviousMerge at 0x00C15070 for 10 elapsed 0.0 for ObviousMerge for 100 elapsed 0.0 for ObviousMerge for 1000 elapsed 0.0 for ObviousMerge for 1 elapsed 0.0 for ObviousMerge for 10 elapsed 0.12500 for ObviousMerge for 100 elapsed 1.32800 for ObviousMerge now timing built-in function PyxObviousMerge for 10 elapsed 0.0 for PyxObviousMerge for 100 elapsed 0.0 for PyxObviousMerge for 1000 elapsed 0.0 for PyxObviousMerge for 1 elapsed 0.01600 for PyxObviousMerge for 10 elapsed 0.09300 for PyxObviousMerge for 100 elapsed 1.09400 for PyxObviousMerge now timing function AggregateTailMerge at 0x00C150B0 for 10 elapsed 0.0 for AggregateTailMerge for 100 elapsed 0.0 for AggregateTailMerge for 1000 elapsed 0.0 for AggregateTailMerge for 1 elapsed 0.0 for AggregateTailMerge for 10 elapsed 0.12500 for AggregateTailMerge for 100 elapsed 1.20300 for AggregateTailMerge now timing built-in function PyxAggregateTailMerge for 10 elapsed 0.0 for PyxAggregateTailMerge for 100 elapsed 0.0 for PyxAggregateTailMerge for 1000 elapsed 0.0 for PyxAggregateTailMerge for 1 elapsed 0.0 for PyxAggregateTailMerge for 10 elapsed 0.09400 for PyxAggregateTailMerge for 100 elapsed 1.03100 for PyxAggregateTailMerge C:\code\users\robin -- Robin Becker -- http://mail.python.org/mailman/listinfo/python-list
Re: pipeline encoding
Tomasz Toczyski schrieb:
My locale is set to UTF-8. The command:
python -c print u'\u03A9'
gives me the desired result and doesn't produce any error.
But when I want to redirect the output to a file I invoke:
python -c print u'\u03A9' file.txt
I get an error:
File string, line 1, in module
UnicodeEncodeError: 'ascii' codec can't encode character u'\u03a9' in
position 0: ordinal not in range(128)
How to cope with it?
Python tries and guesses the stdout-encoding based on the terminal
settings. So the first print works.
However, piping to a file means that it can't do so, because it doesn't
(and shouldn't) make any assumptions on the output encoding desired -
after all, it might be appending to a XML-file with e.g. latin1 encoding.
So you need to explictely encode the unicode-object with the desired
encoding:
python -c print u'\u03A9'.encode('utf-8') file.txt
Diez
--
http://mail.python.org/mailman/listinfo/python-list
Re: An Object's Type
On Dec 6, 2007 5:52 AM, paul [EMAIL PROTECTED] wrote: Bruno Desthuilliers schrieb: [EMAIL PROTECTED] a écrit : Hi, Is it possible to find out if an object is of a certain type or of a type derived from this type? You have the answer, thanks to Diez and Christian. Now unless you have a *very* compelling reason to check the type of an object, *just forget about it*. 9 times out of 10, this is fighting against the language's type system (hint: google for duck typing). So I have to give up the concept that argument types are part of the interface or signature? Honestly, I don't like that. Granted; not having strict type checking makes for great flexibility but the price is you either write typchecking code or let the error propagate into the function or method. I hope type annotations in py3k will allow for something like constraints in C# where you can tell the caller right away she's doing something wrong. You're Stockholmed to the gills by the crappy and nearly useless type systems that you've been exposed to. If you're going to expound on the merits of statically checked type systems, you should first gain some experience with the ML family of languages, that actually have real type systems without casts (like Python!), no escape hatches, and guarantee the static type correctness of all programs. Once you've done that, you'll hate the limited, verbose and cumbersome C# type system and you'll be in a better situation to appreciate both static and dynamic typing. On a more pragmatic basis, there are only 2 kinds of type errors in Python: 1: The object passed doesn't implement the correct interface, and will raise an error when called. This will be caught by a unit test. 2: The object passed implements something that looks like the right interface, but implements it incorrectly. This will be caught by a unit tests. Note that both these errors will be caught by behavior exercising unit tests and do not rely on any sort of typechecking code to be written. Explicit typechecking in Python is done only when you need to dispatch on type, not because you feel like generating spurious errors. -- http://mail.python.org/mailman/listinfo/python-list
Re: Best way to merge/sort two sorted lists?...
On 2007-12-06, Aaron Watters [EMAIL PROTECTED] wrote: ...is to forget they are sorted??? While trying to optimize some NUCULAR libraries I discovered that the best way to merge 2 sorted lists together into a new sorted list is to just append them and re-sort. The following test case demonstrates this. It can be criticized in many ways: it only tests lists of the same size, it only uses hashed data, etcetera... Still, my testing shows resort everything is consistently two times faster than an explicit python merge even for fairly large data. I'm beginning to think a sorted list merger might make a nice tiny extension module (at least for my purposes). See timing demonstration code below. Let me know if there is a better way or if the test is fatally flawed, please. --- Aaron Watters http://www.xfeedme.com/nucular/pydistro.py/go?FREETEXT=greedy+bastard ==snip: test code below test different ways to merge two sorted lists def ObviousMerge(L1, L2): SNIP def AggregateTailMerge(L1, L2): SNIP Your merge functions are pretty complex; here's a simpler, obvious solution: def merge_sorted(a, b): Merge two sorted lists into a new sorted list. merge_sorted(range(10), range(5)) [0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 6, 7, 8, 9] merge_sorted(range(5), range(10)) [0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 6, 7, 8, 9] merge_sorted(range(3), []) [0, 1, 2] merge_sorted([], range(3)) [0, 1, 2] merge_sorted([], []) [] rval = [] aix, bix = 0, 0 astop, bstop = len(a), len(b) while aix astop and bix bstop: if a[aix] b[bix]: rval.append(a[aix]) aix += 1 else: rval.append(b[bix]) bix += 1 while aix astop: rval.append(a[aix]) aix += 1 while bix bstop: rval.append(b[bix]) bix += 1 return rval It should beat ResortEverything consistently once the lists become larger than a certain size. Do you get better results at all with the above function? -- Neil Cerutti The audience is asked to remain seated until the end of the recession. --Church Bulletin Blooper -- http://mail.python.org/mailman/listinfo/python-list
Re: Best way to merge/sort two sorted lists?...
On Dec 6, 9:30 am, Aaron Watters [EMAIL PROTECTED] wrote: While trying to optimize some NUCULAR libraries I discovered that the best way to merge 2 sorted lists together into a new sorted list is to just append them and re-sort. . . . I'm beginning to think a sorted list merger might make a nice tiny extension module (at least for my purposes). See recipes: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/491285 http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/305269 Raymond -- http://mail.python.org/mailman/listinfo/python-list
__iadd__ useless in sub-classed int
For whatever reason, I need an inproved integer. Sounds easy, let's just subclass int: class test(int): pass Now let's test it: zed=test(0) zed.__class__ class '__main__.test' zed 0 So far, so good. Now let's try incrementing: zed+=1 zed 1 zed.__class__ type 'int' WTF??! Is this a bug or is it the inevitable result of optimizing for the case where all integers are indistinguishable? -- http://mail.python.org/mailman/listinfo/python-list
Re: pipeline encoding
Tomek Toczyski schrieb:
Diez B. Roggisch:
Python tries and guesses the stdout-encoding based on the terminal
settings. So the first print works.
However, piping to a file means that it can't do so, because it
doesn't (and shouldn't) make any assumptions on the output encoding
desired - after all, it might be appending to a XML-file with e.g.
latin1 encoding.
So you need to explictely encode the unicode-object with the desired
encoding:
python -c print u'\u03A9'.encode('utf-8') file.txt
Thanks. It is a solutiona to my problem but:
Are there any command line option for telling python what encoding to
use for stdout?
To be honest I have a more complicated program than the example that I
have presented - there are many print commands inside and it is not very
feasible for me to put .encode('utf-8') inside every print occurence.
No it hasn't, and it's easy enough remedied by doing
def eprint(msg):
print msg.encode('utf-8')
and then doing
eprint('whatever')
instead of
print 'whatever'
Diez
--
http://mail.python.org/mailman/listinfo/python-list
Re: __iadd__ useless in sub-classed int
samwyse schrieb: For whatever reason, I need an inproved integer. Sounds easy, let's just subclass int: class test(int): pass Now let's test it: zed=test(0) zed.__class__ class '__main__.test' zed 0 So far, so good. Now let's try incrementing: zed+=1 zed 1 zed.__class__ type 'int' WTF??! Is this a bug or is it the inevitable result of optimizing for the case where all integers are indistinguishable? There has been a lengthe thread over the semantics of __iadd__ a few weeks ago. It _can_ modify the object in question in-place (something not possible for ints anyway), but it will ALWAYS return a reference which will be set to the left-hand-side. zed = zed.__iadd__(1) So - you need to overload the __iadd__-method to return a test-instance. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Best way to merge/sort two sorted lists?...
On 2007-12-06, Raymond Hettinger [EMAIL PROTECTED] wrote: On Dec 6, 9:30 am, Aaron Watters [EMAIL PROTECTED] wrote: While trying to optimize some NUCULAR libraries I discovered that the best way to merge 2 sorted lists together into a new sorted list is to just append them and re-sort. . . . I'm beginning to think a sorted list merger might make a nice tiny extension module (at least for my purposes). See recipes: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/491285 http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/305269 That's fairly awesome. -- Neil Cerutti -- http://mail.python.org/mailman/listinfo/python-list
Re: pipeline encoding
Are there any command line option for telling python what encoding to use for stdout? Not a command line option. However, you can wrap sys.stdout with a stream that automatically performs an encoding. If all your print statements output Unicode strings, you can do sys.stdout = codecs.getwriter(utf-8)(sys.stdout) HTH, Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: pipeline encoding
Tomek Toczyski [EMAIL PROTECTED] writes:
Are there any command line option for telling python what encoding to
use for stdout?
To be honest I have a more complicated program than the example that I
have presented - there are many print commands inside and it is not
very feasible for me to put .encode('utf-8') inside every print
occurence.
You can use sitecustomize.py [1]_ for that purpose, e.g.
create this file in your current directory:
# sitecustomize.py
import sys
sys.setdefaultencoding('utf-8')
and run Python like that:
PYTHONPATH=. python -c print u'\u03A9' file.txt
But remember that when you copy this file to the global
PYTHONPATH on your system it will affect all Python
programs.
.. [1] http://docs.python.org/lib/module-site.html
HTH,
Rob
--
http://mail.python.org/mailman/listinfo/python-list
Re: Best way to merge/sort two sorted lists?...
On 2007-12-06, Neil Cerutti [EMAIL PROTECTED] wrote:
It should beat ResortEverything consistently once the lists
become larger than a certain size. Do you get better results at
all with the above function?
With psyco, my merge_sorted becamse faster than relying on
timsort at roughly 80 elements total. Without psyco it was always
slowest.
Both were much faster than the ASPN imerge recipe--if you built a
list with the result. imerge is wicked fast if you never extract
any values, though. ;-)
Or perhaps I'm just misprofiling. I used:
a = range(2) # e.g
b = range(17000)
t = timeit.Timer('merge_sorted(a, b)', 'from __main__ import '
'merge_sorted, a, b')
t2 = timeit.Timer('merge_sorted2(a, b)', 'from __main__ import '
'merge_sorted2, a, b')
t3 = timeit.Timer('list(imerge(a, b))', 'from __main__ import imerge, a, b')
print t.timeit(100)
print t2.timeit(100)
print t3.timeit(100)
--
Neil Cerutti
--
http://mail.python.org/mailman/listinfo/python-list
Re: pipeline encoding
Tomek Toczyski wrote:
Diez B. Roggisch:
Python tries and guesses the stdout-encoding based on the terminal
settings. So the first print works.
However, piping to a file means that it can't do so, because it doesn't
(and shouldn't) make any assumptions on the output encoding desired -
after all, it might be appending to a XML-file with e.g. latin1
encoding.
So you need to explictely encode the unicode-object with the desired
encoding:
python -c print u'\u03A9'.encode('utf-8') file.txt
Thanks. It is a solutiona to my problem but:
Are there any command line option for telling python what encoding to use
for stdout?
To be honest I have a more complicated program than the example that I
have presented - there are many print commands inside and it is not very
feasible for me to put .encode('utf-8') inside every print occurence.
Alternatively you can wrap stdout:
# -*- coding: utf-8 -*-
import sys
if sys.stdout.encoding is None:
import locale
import codecs
encoding = locale.getpreferredencoding() # or just utf-8
streamwriter = codecs.lookup(encoding).streamwriter
sys.stdout = streamwriter(sys.stdout)
print uähnlich üblich möglich
--
http://mail.python.org/mailman/listinfo/python-list
Determining Dependencies
Hello All- I have a Python routine consisting of 75 or more files (most files house 1 object) and would like to know if there is an automated way to search though the files and determine all of the (non-standard lib) modules required to run the routine. For example, looking in my base class I can see that I need cx_Oracle and odbc, but there are many files to go through which increases the chance for errors. The flip side of this is that the code has gone through many revisions and I would like to know if all of the modules being brought in are actually being used in a given file. If I'm not using it I don't want to bring it in. Worst case is we go though each file manually. I was just curious if there is a better way. Thanks, --greg -- http://mail.python.org/mailman/listinfo/python-list
Re: Best way to merge/sort two sorted lists?...
On 2007-12-06, Aaron Watters [EMAIL PROTECTED] wrote: On Dec 6, 2:14 pm, Neil Cerutti [EMAIL PROTECTED] wrote: On 2007-12-06, Raymond Hettinger [EMAIL PROTECTED] wrote: See recipes: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/491285 http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/305269 That's fairly awesome. The second one is! That's why it works so fast. Tim Peters optimized this case! Gotta hand it to Tim Peters. The first one should win some sort of obfuscated code contest, imho. It also seems to be 5 times slower than any of the others. btw: Neil's merge_sorted is a bit slower than any of mine due to the use of list.append, I think instead of preallocating a list of the right size. I was hoping that, as it was slightly simpler that way, it would be slightly faster. But sadly, it wasn't. I ultimately added that optimization, too. -- Neil Cerutti I make love to pressure. --Stephen Jackson -- http://mail.python.org/mailman/listinfo/python-list
Re: which configparse?
Shane Geiger wrote:
Best, is naturally, a somewhat subjective evaluation. That being said,
configparser is well regarded. I have also seen these two options that
you might want to check out:
http://wiki.woodpecker.org.cn/moin/Dict4Ini
http://www.voidspace.org.uk/python/configobj.html
+1 on configobj. The ability to have mutli-level config files is wonderful,
and it's all dict and/or array access methods. Wonderful.
I'd like to make minimal change to my working optparse setup (there are
lots of options - I don't want to duplicate all the cmdline parsing with
ini file parsing code)
I found (at least) two areas where lots of code is unavoidable:
configuration handling and error handling. That said, you could use
configparse (or configobj) to set the defaults of all your command line
options, like so:
cfg = configobj.ConfigObj('file.ini', file_error=True)
parser.add_option('--opt', dest='opt', default=cfg.get('opt', None)
Hmm...now why didn't I do that in my code? Thanks for the idea! :)
j
--
http://mail.python.org/mailman/listinfo/python-list
Re: JSON
[EMAIL PROTECTED] wrote:
i tried a couple python json libraries. i used simplejson on the
server and was using cjson on the client, but i ran into this issue.
i'm now using simplejson on both sides, but i'm still interested in
this issue. did i do something wrong? is there a bug in one of the
libraries? or something i don't understand about the json spec?
i problem is the line where i call cjson.decode() below:
import simplejson
import cjson
sj = simplejson.dumps('http://server.com')
sj
'http:\\/\\/server.com'
cj = cjson.encode('http://server.com')
cj
'http://server.com;'
simplejson.loads(cj)
u'http://server.com'
cjson.decode(cj)
'http://server.com'
simplejson.loads(sj)
u'http://server.com'
cjson.decode(sj)
'http:\\/\\/server.com' # is this correct
Known issue. See:
http://blog.extracheese.org/2007/07/when-json-isnt-json.html
Neither project has fixed it it seems. Not sure which is actually
the correct way to do it, but it would be nice if they would agree.
j
--
http://mail.python.org/mailman/listinfo/python-list
Re: Capture DOS error???
Tangen, Erik wrote: Did you ever get a solution to this? I am also in need of this solution. Thanks, Erik Can you clarify? What is a DOS error? You mean an error in reading or writing a file? That would be an IOError exception. If a file is not found, or you can't read it, that's an OSError exception. Beyond that, I'm not sure what you're asking for. j -- http://mail.python.org/mailman/listinfo/python-list
Re: which configparse?
Martin Marcher wrote: Hi, On 12/6/07, Neal Becker [EMAIL PROTECTED] wrote: configparse looks like what I want, but it seems last commit was 2years ago. What is the best choice? that seems like configparse is the best choice. Thanks. I see something right off that should be improved in configparse. In OptionParser.__init__, a hard-coded list of arguments is passed to the base _OptionParser. This (predictably) is no longer current - OptionParser now has one more optional argument. I suspect the correct thing to do here is to allow configparse.OptionParser to accept error_handler only as a keyword arg, and then strip it out, passing all other args to _OptionParser.__init__. -- http://mail.python.org/mailman/listinfo/python-list
Re: Best way to merge/sort two sorted lists?...
On Dec 6, 2:14 pm, Neil Cerutti [EMAIL PROTECTED] wrote: On 2007-12-06, Raymond Hettinger [EMAIL PROTECTED] wrote: See recipes: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/491285 http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/305269 That's fairly awesome. The second one is! That's why it works so fast. Tim Peters optimized this case! Gotta hand it to Tim Peters. The first one should win some sort of obfuscated code contest, imho. It also seems to be 5 times slower than any of the others. btw: Neil's merge_sorted is a bit slower than any of mine due to the use of list.append, I think instead of preallocating a list of the right size. -- Aaron === http://www.xfeedme.com/nucular/pydistro.py/go?FREETEXT=inherently+hosed -- http://mail.python.org/mailman/listinfo/python-list
Re: which configparse?
Hi, On 12/6/07, Neal Becker [EMAIL PROTECTED] wrote: configparse looks like what I want, but it seems last commit was 2years ago. What is the best choice? that seems like configparse is the best choice. I use it quite often and no commit in 2years to me means Boy that's stable software. A search on bugs.python.org mentions 1 enhancement to use for line in f: instead of while 1: Why do we always need a ton of commits? For me that means that developement is still in progress and changes have to be expected because it's not yet stable. (Actually not that hard rules, but I hope you get what I meant) martin -- http://noneisyours.marcher.name http://feeds.feedburner.com/NoneIsYours -- http://mail.python.org/mailman/listinfo/python-list
sqlite or xml
Hello group, If I need store and use a couple thousand of people's contact info: first name, last name, phone, fax, email, address, etc. I'm thinking of using either sqlite or xml. Which one is better? My understanding is if there is large amount of data, sqlite would be better as far as speed is concerned. But how much data is considered to be large amount? Thank you! -- http://mail.python.org/mailman/listinfo/python-list
Charging range
I was recently approached with a offer to work on a web related project where I'd use Python as my main tool. I am using Python for the past year, and this would be first project. Also, this is a remote position. The company is located in the US, South Atlantic Region. Considering it is contract work and it would be a 3-5 man-months project, how much would you guys think to be the appropriate range to charge for such project? Any type of figures would help me, to give me at least an idea. Thanks, -- Miguel Galves - Engenheiro de Computação Já leu meus blogs hoje? Para geeks http://log4dev.com Pra pessoas normais http://miguelcomenta.wordpress.com Não sabendo que era impossível, ele foi lá e fez... -- http://mail.python.org/mailman/listinfo/python-list
Re: How can I create customized classes that have similar properties as 'str'?
On Nov 24, 6:38 pm, Hrvoje Niksic [EMAIL PROTECTED] wrote: samwyse [EMAIL PROTECTED] writes: create a hash that maps your keys to themselves, then use the values of that hash as your keys. The atom function you describe already exists under the name intern. D'oh! That's what I get for not memorizing Non-essential Built-in Functions. In my defense, however, my function will work with anything that can be used as a dictionary key (strings, tuples, frozen sets, etc), not just character strings; thus we return to the original: a=(1,2,3) b=(1,1+1,1+1+1) a == b True a is b False atom(a) is atom(b) True intern(a) is intern(b) Traceback (most recent call last): File pyshell#33, line 1, in ? intern(a) is intern(b) TypeError: intern() argument 1 must be string, not tuple -- http://mail.python.org/mailman/listinfo/python-list
Re: Distutils help for sub-packages
On Dec 5, 7:20 am, [EMAIL PROTECTED] wrote: I recommend asking the distutils guys at their list: http://mail.python.org/mailman/listinfo/distutils-sig Mike I did, and no one replied there either. Probably because everyone, there and here, were too polite to say that I was nutso. Which, it turns out, I was. After not hearing from two normally helpful forums (fora?) I went back a little more carefully and found the bug. Sorry for the false alarm. -- http://mail.python.org/mailman/listinfo/python-list
Re: sqlite or xml
On Dec 6, 10:21 pm, Kelie [EMAIL PROTECTED] wrote: Hello group, If I need store and use a couple thousand of people's contact info: first name, last name, phone, fax, email, address, etc. I'm thinking of using either sqlite or xml. Which one is better? My understanding is if there is large amount of data, sqlite would be better as far as speed is concerned. But how much data is considered to be large amount? Thank you! I'm personally partial to databases myself and at a thousand records a database is good idea, or an indexed file. Depends on what you want to do with it in the end which should resolve the problem. Do you need it to accessed (read write) by multiple people ? Or would it just be a single transaction process (ie. just you locally) -- http://mail.python.org/mailman/listinfo/python-list
Re: Distutils help for sub-packages
On Dec 6, 2:37 pm, Rick Muller [EMAIL PROTECTED] wrote: On Dec 5, 7:20 am, [EMAIL PROTECTED] wrote: I recommend asking the distutils guys at their list: http://mail.python.org/mailman/listinfo/distutils-sig Mike I did, and no one replied there either. Probably because everyone, there and here, were too polite to say that I was nutso. Which, it turns out, I was. After not hearing from two normally helpful forums (fora?) I went back a little more carefully and found the bug. Sorry for the false alarm. Sorry to hear that...they are both pretty helpful in most cases. C.l.py doesn't usually mind telling OP's that they're nutso either. I personally didn't think you were, but I didn't know how to answer your question either. Mike -- http://mail.python.org/mailman/listinfo/python-list
Re: sqlite or xml
how much data is considered to be large amount? one record Unless you really need XML to communicate with some other app via a predetermined schema, use a database to store and retrieve data. If you only need to send data to another app via a predetermined schema, use a database and then offer an export to XML functionality. for s in ['regular expressions', 'XML', 'perl', 'WS-*']: print Some people, when confronted by a problem, think I know, I'll use %s! Now they have two problems. % s -tkc -- http://mail.python.org/mailman/listinfo/python-list
Re: splitting a words of a line
On Dec 7, 2:21 am, Sumit [EMAIL PROTECTED] wrote: Hi , I am trying to splitt a Line whihc is below of format , AzAccept PLYSSTM01 [23/Sep/2005:16:14:28 -0500] 162.44.245.32 CN= cojack (890),OU=1,OU=Customers,OU=ISM-Users,OU=kkk Secure,DC=customer,DC=rxcorp,DC=com plysmhc03zp GET /mci/performance/ SelectProducts.aspx? p=0V=Ca=29menu=adhoc [d4b62ca2-09a0-4334622b-0e1c-03c42ba5] [0] Because lines are mangled in transmission, it is rather difficult to guess exactly what you have in your input and what your expected results are. Also you don't show exactly what you have tried. At the end is a small script that contains my guess as to your input and expected results, shows an example of what the re.VERBOSE flag is intended for, and how you might debug your results. So that you don't get your homework done 100% for free, I haven't corrected the last mistake I made. As usual, re may not be the best way of doing this exercise. Your *single* piece of evidence may not be enough. It appears to be a horrid conglomeration of instances of different things, each with its own grammar. You may find that something like PyParsing would be more legible and more robust. Here all the string whihc i want to split is - AzAccept PLYSSTM01 [23/Sep/2005:16:14:28 -0500] 162.44.245.32 CN= cojack (890),OU=1,OU=Customers,OU=ISM-Users,OU=kkk Secure,DC=customer,DC=rxcorp,DC=com GET /mci/performance/SelectProducts.aspx?p=0V=Ca=29menu=adhoc d4b62ca2-09a0-4334622b-0e1c-03c42ba5 0 i am trying to use re.split() method to split them , But unable to get the exact result . C:\junktype sumit.py import re textin = \ AzAccept PLYSSTM01 [23/Sep/2005:16:14:28 -0500] 162.44.245.32 CN= \ cojack (890),OU=1,OU=Customers,OU=ISM-Users,OU=kkk \ Secure,DC=customer,DC=rxcorp,DC=com plysmhc03zp GET /mci/ performance/ \ SelectProducts.aspx? \ p=0V=Ca=29menu=adhoc [d4b62ca2-09a0-4334622b-0e1c-03c42ba5] [0] expected = [ AzAccept, PLYSSTM01, 23/Sep/2005:16:14:28 -0500, 162.44.245.32, CN= cojack (890),OU=1,OU=Customers,OU=ISM-Users,OU=kkk Secure,DC=custom er,DC=rxcorp,DC=com, plysmhc03zp, GET, /mci/performance/SelectProducts.aspx?p=0V=Ca=29menu=adhoc, d4b62ca2-09a0-4334622b-0e1c-03c42ba5, 0, ] pattern = r (\S+) # AzAccept \s+ (\S+) # PLYSSTM01 \s+\[ ([^]]+) # 23/Sep/2005:16:14:28 -0500 ]\s+ (\S+) # 162.44.245.32 \s+ ([^]+) # CN= cojack (890),OU=1, etc etc,DC=rxcorp,DC=com \s+ (\S+) # plysmhc03zp \s+ (\S+) # GET \s+ (\S+) # /mci/performance/ ... menu=adhoc \s+\[ ([^]]+) # d4b62ca2-09a0-4334622b-0e1c-03c42ba5 ]\s+\[ ([^]]+) # 0 ]$ mobj = re.match(pattern, textin, re.VERBOSE) if not mobj: print Bzzzt! else: result = mobj.groups() print len check, len(result) == len(expected), len(result), len(expected) for a, b in zip(result, expected): print a == b, repr(a), repr(b) C:\junkpython sumit.py len check True 10 10 True 'AzAccept' 'AzAccept' True 'PLYSSTM01' 'PLYSSTM01' True '23/Sep/2005:16:14:28 -0500' '23/Sep/2005:16:14:28 -0500' True '162.44.245.32' '162.44.245.32' True 'CN= cojack (890),OU=1,OU=Customers,OU=ISM-Users,OU=kkk Secure,DC=custo mer,DC=rxcorp,DC=com' 'CN= cojack (890),OU=1,OU=Customers,OU=ISM- Users,OU=kk k Secure,DC=customer,DC=rxcorp,DC=com' True 'plysmhc03zp' 'plysmhc03zp' True 'GET' 'GET' False '/mci/performance/SelectProducts.aspx?p=0V=Ca=29menu=adhoc' '/mci/perf ormance/SelectProducts.aspx?p=0V=Ca=29menu=adhoc' True 'd4b62ca2-09a0-4334622b-0e1c-03c42ba5' 'd4b62ca2-09a0-4334622b-0e1c-03c42ba 5' True '0' '0' C:\junk -- http://mail.python.org/mailman/listinfo/python-list
Re: __iadd__ useless in sub-classed int
On Dec 6, 1:12 pm, Diez B. Roggisch [EMAIL PROTECTED] wrote: samwyse schrieb: For whatever reason, I need an inproved integer. Sounds easy, let's just subclass int: class test(int): pass Now let's test it: zed=test(0) zed.__class__ class '__main__.test' zed 0 So far, so good. Now let's try incrementing: zed+=1 zed 1 zed.__class__ type 'int' WTF??! Is this a bug or is it the inevitable result of optimizing for the case where all integers are indistinguishable? There has been a lengthe thread over the semantics of __iadd__ a few weeks ago. It _can_ modify the object in question in-place (something not possible for ints anyway), but it will ALWAYS return a reference which will be set to the left-hand-side. Thanks! I'd missed that thread, googling found it but it didn't look noteworthy at first glance. I've not yet read the entire thread, but I did see a reference to PEP 203. )So, given the expression: ) ) x += y ) )The object `x' is loaded, then `y' is added to it, and the )resulting object is stored back in the original place. That agrees with what I'm seeing, all right. The problem is, the resulting object has a different type, which seems to violate the spirit of a later paragraph: )Writing the above expression as ) )x operator= y ) )is both more readable and less error prone, because it is )instantly obvious to the reader that it is x that is being )changed, and not x that is being replaced by something almost, )but not quite, entirely unlike x. And that's my complaint. The value in zed is being replaced by something almost, but not quite, identical to the original value. Python's internal implementation of __iadd__ for int isn't returning self, it's returning a new value belonging to the super-class. My whole point is overloading int was that I'd hoped to avoid having to write a bunch of methods to perform in-place modifications. Looks like I stuck, however. -- http://mail.python.org/mailman/listinfo/python-list
Re: __iadd__ useless in sub-classed int
On Dec 6, 2007 3:02 PM, samwyse [EMAIL PROTECTED] wrote: On Dec 6, 1:12 pm, Diez B. Roggisch [EMAIL PROTECTED] wrote: samwyse schrieb: For whatever reason, I need an inproved integer. Sounds easy, let's just subclass int: class test(int): pass Now let's test it: zed=test(0) zed.__class__ class '__main__.test' zed 0 So far, so good. Now let's try incrementing: zed+=1 zed 1 zed.__class__ type 'int' WTF??! Is this a bug or is it the inevitable result of optimizing for the case where all integers are indistinguishable? There has been a lengthe thread over the semantics of __iadd__ a few weeks ago. It _can_ modify the object in question in-place (something not possible for ints anyway), but it will ALWAYS return a reference which will be set to the left-hand-side. Thanks! I'd missed that thread, googling found it but it didn't look noteworthy at first glance. I've not yet read the entire thread, but I did see a reference to PEP 203. )So, given the expression: ) ) x += y ) )The object `x' is loaded, then `y' is added to it, and the )resulting object is stored back in the original place. That agrees with what I'm seeing, all right. The problem is, the resulting object has a different type, which seems to violate the spirit of a later paragraph: The phrasing is a little awkward. Instead of store say bound to the same name as )Writing the above expression as ) )x operator= y ) )is both more readable and less error prone, because it is )instantly obvious to the reader that it is x that is being )changed, and not x that is being replaced by something almost, )but not quite, entirely unlike x. And that's my complaint. The value in zed is being replaced by something almost, but not quite, identical to the original value. Python's internal implementation of __iadd__ for int isn't returning self, it's returning a new value belonging to the super-class. My whole point is overloading int was that I'd hoped to avoid having to write a bunch of methods to perform in-place modifications. Looks like I stuck, however. Remember that in Python, name binding (which is to say, pure assignment) is never a mutating operation. It's purely internal to the namespace it occurs in. So even when augmented assignment returns self, it still results in a normal Python assignment. You're going to be struggling against the grain trying to implement a mutable int anyway, you won't be able to make foo = 10 mutate the int, and even if you do create one you probably don't want it to return true for isinstance(foo, int). -- http://mail.python.org/mailman/listinfo/python-list
Re: __iadd__ useless in sub-classed int
On 2007-12-06, samwyse [EMAIL PROTECTED] wrote: And that's my complaint. The value in zed is being replaced by something almost, but not quite, identical to the original value. Python's internal implementation of __iadd__ for int isn't returning self, it's returning a new value belonging to the super-class. int.__iadd__ cannot return self because int instances are immutable. In order to return self it would first have to change what's unchangeable. My whole point is overloading int was that I'd hoped to avoid having to write a bunch of methods to perform in-place modifications. Looks like I stuck, however. You have to implement only the operations you actually use. So to save yourself drudge-work, use fewer operations. ;-) -- Neil Cerutti -- http://mail.python.org/mailman/listinfo/python-list
Calculate an age
Hi all, I have searched in the standard distribution if there was a function to return the difference between 2 dates expressed like an age : number of years, of months and days. The difference between datetime instances returns a timedelta object that gives a number of days, but not an age So is there such a function somewhere ? If not, for what reason, since it's a rather usual task Regards, Pierre -- http://mail.python.org/mailman/listinfo/python-list
Capturing global input?
I'd like to accept mouse gestures and keyboard shortcuts as input to a program. The nature of this program requires that these commands be issued regardless of the currently active window. Here's the rub: I need a platform-independent solution. Java supports with its MouseInfo class, but I'd like a Python equivalent without turning to Jython. Is this possible? Thanks in advance. -- http://mail.python.org/mailman/listinfo/python-list
Class destructor -- strange behaviour
Hi, I have this simple code: | #!/usr/bin/python | import codecs | import re | from copy import deepcopy | | class MyClass(object): | def __del__(self): | deepcopy(1) | | x=MyClass() but I get an error: | Exception exceptions.TypeError: 'NoneType' object is not callable in bound method MyClass.__del__ of __main__.MyClass object at 0x6fcf0 ignored The problem disappears if I do anything of this: 1. change - from copy import deepcopy + import copy and call directly copy.deepcopy(1) or 2. don't store object to variable `x' or 3. don't import module `re' The first solution is OK, but I would like to know why it behaves so strange. We have tested on: - Mac OS X Tiger for PPC Python 2.3.5 (#1, Mar 20 2005, 20:38:20) [GCC 3.3 20030304 (Apple Computer, Inc. build 1809)] on darwin - Linux 64bit and 32bit Python 2.4.4 (#1, Oct 30 2007, 14:31:50) [GCC 4.1.2 (Gentoo 4.1.2 p1.0.2)] on linux2 Python 2.5 (r25:51908, Jan 12 2007, 13:57:15) [GCC 4.0.2 20051125 (Red Hat 4.0.2-8)] on linux2 Thanks for the explanation, Vlasta -- http://mail.python.org/mailman/listinfo/python-list
Re: sqlite or xml
Tim Chase wrote: how much data is considered to be large amount? one record Unless you really need XML to communicate with some other app via a predetermined schema, use a database to store and retrieve data. If you only need to send data to another app via a predetermined schema, use a database and then offer an export to XML functionality. I agree. IMO, XML should be used as a data exchange format, not as database format for databases of *any* length. Though some products/projects may tell you otherwise. I won't limit data exchange to only other apps/programs. One benefit of XML is that it's relatively human readable, so exchanging data directly with humans using XML is probably acceptable, but shouldn't be encouraged. -- http://mail.python.org/mailman/listinfo/python-list
I'm missing something here with range vs. xrange
I've been playing with Python a bit. Doing little performance benchmarks and working with Psyco. It's been fun and I've been learning a lot. For example, in a previous post, I was looking for a way to dynamically add new runtime function to a class. Martin told me to use a class instance variable instead. It turns out that's faster than hard coding a list of functions. Thanks Martin. I read that the range function builds a list and that xrange returns an iterator and is therefore more efficient. In my testing, they both come out to almost exactly the same performance wise. Did something get changed in Python 2.4 to make them identical? I searched the web but couldn't find anything that would account for the similarities. -- http://mail.python.org/mailman/listinfo/python-list
Re: Calculate an age
On Dec 7, 8:34 am, Pierre Quentel [EMAIL PROTECTED] wrote: Hi all, I have searched in the standard distribution if there was a function to return the difference between 2 dates expressed like an age : number of years, of months and days. The difference between datetime instances returns a timedelta object that gives a number of days, but not an age So is there such a function somewhere ? If not, for what reason, since it's a rather usual task and a rather usually imprecisely specified task [what do you mean by number of months?] with multiple interpretations/implementations/ doctrines the publication of any one of which attracts a truckload of rotten tomatoes and derision from adherents of other sects :-) -- http://mail.python.org/mailman/listinfo/python-list
Re: I'm missing something here with range vs. xrange
Joe Goldthwaite wrote: I read that the range function builds a list and that xrange returns an iterator and is therefore more efficient. This is generally not true. In my testing, they both come out to almost exactly the same performance wise. Did something get changed in Python 2.4 to make them identical? No. Try again with a list of length 1000. Regards, Björn -- BOFH excuse #359: YOU HAVE AN I/O ERROR - Incompetent Operator error -- http://mail.python.org/mailman/listinfo/python-list
Re: sqlite or xml
Tim Chase wrote: how much data is considered to be large amount? one record Unless you really need XML to communicate with some other app via a predetermined schema, use a database to store and retrieve data. If you only need to send data to another app via a predetermined schema, use a database and then offer an export to XML functionality. I agree. IMO, XML should be used as a data exchange format, not as database format for databases of *any* length. Though some products/projects may tell you otherwise. I won't limit data exchange to only other apps/programs. One benefit of XML is that it's relatively human readable, so exchanging data directly with humans using XML is probably acceptable, but shouldn't be encouraged. -- http://mail.python.org/mailman/listinfo/python-list
Re: sqlite or xml
Thanks Chris, Tim and Yu-Xi. I'll follow your advice and use database. -- http://mail.python.org/mailman/listinfo/python-list
Re: Speed of Nested Functions Lambda Expressions
[Referring to the thread at http://mail.python.org/pipermail/python-list/2007-October/463348.html with apologies for top posting (I don't have the original mail)] Duncan Booth wrote: You can use Python's bytecode disassembler to see what actually gets executed here: def fn_outer(v): a=v*2 def fn_inner(): print V:%d,%d % (v,a) fn_inner() import dis dis.dis(fn_outer) 2 0 LOAD_DEREF 1 (v) [snip] When you execute the 'def' statement, the two scoped variables a and v are built into a tuple on the stack, the compiled code object for the inner function is also pushed onto the stack and then the function is created by the 'MAKE_CLOSURE' instruction. This is then stored in a local variable (STORE_FAST) which is then loaded and called. So the function definition is pretty fast, BUT notice how fn_inner is referenced by STORE_FAST/LOAD_FAST whereas a and v are referenced by LOAD_DEREF/STORE_DEREF and LOAD_CLOSURE. The code for fn_inner also uses LOAD_DEREF to get at the scoped variables: I'd like to understand what it is that triggers the use of LOAD/STORE_DEREF versus LOAD/STORE_FAST. This seems dependent on how fn_inner above uses the a and v variables. If I change the print V:%d,%d % (v,a) line to be something like (a, v) = (v, a) or do other simple uses and assignments to a and v, LOAD/STORE_FAST is used. It seems that it's the use of print (in this case) that triggers the use of LOAD/STORE_DEREF in the bytecode. Can anyone shed more light on what in general causes the switch to LOAD/STORE_DEREF? I find it a bit disconcerting that the simple presence of a nested function (even if never used) may trigger significant slowdown in variable access for the rest of the code in the containing function. I'd be happy to know how/when this happens. I know I probably shouldn't care, but I do. Thanks, Terry Jones -- http://mail.python.org/mailman/listinfo/python-list
Re: Calculate an age
On Dec 6, 4:19 pm, John Machin [EMAIL PROTECTED] wrote: On Dec 7, 8:34 am, Pierre Quentel [EMAIL PROTECTED] wrote: Hi all, I have searched in the standard distribution if there was a function to return the difference between 2 dates expressed like an age : number of years, of months and days. The difference between datetime instances returns a timedelta object that gives a number of days, but not an age So is there such a function somewhere ? If not, for what reason, since it's a rather usual task and a rather usually imprecisely specified task [what do you mean by number of months?] with multiple interpretations/implementations/ doctrines the publication of any one of which attracts a truckload of rotten tomatoes and derision from adherents of other sects :-) I think metric months are all the same length, 10**1.4834089785587095 days. -- Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: using pdb and catching exception
Just checked to see how Ruby deals with this. Both languages allow one to register a trace functon to catch events like call, line, return, exception, etc. Ruby however register an event before the raise takes place. It might be cool for some good person to go through the process of making a formal suggestion this get added, etc. (unless a change like this is already in the works). Diez B. Roggisch [EMAIL PROTECTED] writes: raise is a statement, not a function. So it won't work. I do know that e.g. nose allows for dropping into pdb when a test fails. Maybe that works by catching the exception top-level, examining the stack-trace, setting a break-point, and restarting it. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Calculate an age
On Dec 6, 11:19 pm, John Machin [EMAIL PROTECTED] wrote: On Dec 7, 8:34 am, Pierre Quentel [EMAIL PROTECTED] wrote: Hi all, I have searched in the standard distribution if there was a function to return the difference between 2 dates expressed like an age : number of years, of months and days. The difference between datetime instances returns a timedelta object that gives a number of days, but not an age So is there such a function somewhere ? If not, for what reason, since it's a rather usual task and a rather usually imprecisely specified task [what do you mean by number of months?] with multiple interpretations/implementations/ doctrines the publication of any one of which attracts a truckload of rotten tomatoes and derision from adherents of other sects :-) It may be imprecisely specified, yet it's quite useful anyway. I've got an implementation at http://blog.tkbe.org/archive/python-how-old-are-you/ if anyone's interested.. -- bjorn -- http://mail.python.org/mailman/listinfo/python-list
Re: Best ways of managing text encodings in source/regexes?
OK, for those interested in this sort of thing, this is what I now think is necessary to work with Unicode in python. Thanks to those who gave feedback, and to Cliff in particular (but any remaining misconceptions are my own!) Here are the results of my attempts to come to grips with this. Comments/corrections welcome... (Note this is not about which characters one expects to match with \w etc. when compiling regexes with python's re.UNICODE flag. It's about the encoding of one's source strings when building regexes, in order to match against strings read from files of various encodings.) I/O: READ TO/WRITE FROM UNICODE STRING OBJECTS. Always use codecs to read from a specific encoding to a python Unicode string, and use codecs to encode to a specific encoding when writing the processed data. codecs.read() delivers a Unicode string from a specific encoding, and codecs.write() will put the Unicode string into a specific encoding (be that an encoding of Unicode such as UTF-8). SOURCE: Save the source as UTF-8 in your editor, tell python with # - *- coding: utf-8 -*-, and construct all strings with u'' (or ur'' instead of r''). Then, when you're concatenating strings constructed in your source with strings read with codecs, you needn't worry about conversion issues. (When concatenating byte strings from your source with Unicode strings, python will, without an explicit decode, assume the byte string is ASCII which is a subset of Unicode (IS0-8859-1 isn't).) Even if you save the source as UTF-8, tell python with # -*- coding: utf-8 -*-, and say myString = blah, myString is a byte string. To construct a Unicode string you must say myString = ublah or myString = unicode(blah), even if your source is UTF-8. Typing 'u' when constructing all strings isn't too arduous, and less effort than passing selected non-ASCII source strings to unicode() and needing to remember where to do it. (You could easily slip a non- ASCII char into a byte string in your code because most editors and default system encodings will allow this.) Doing everything in Unicode simplifies life. Since the source is now UTF-8, and given Unicode support in the editor, it doesn't matter whether you use Unicode escape sequences or literal Unicode characters when constructing strings, since uá == u\u00E1 True REGEXES: I'm a bit less certain about regexes, but this is how I think it's going to work: Now that my regexes are constructed from Unicode strings, and those regexes will be compiled to match against Unicode strings read with codecs, any potential problems with encoding conversion disappears. If I put an en-dash into a regex built using u'', and I happen to have read the file in the ASCII encoding which doesn't support en-dashes, the regex simply won't match because the pattern doesn't exist in the /Unicode/ string served up by codecs. There's no actual problem with my string encoding handling, it just means I'm looking for the wrong chars in a Unicode string read from a file not saved in a Unicode encoding. tIM -- http://mail.python.org/mailman/listinfo/python-list
Re: sqlite or xml
On Dec 7, 12:34 am, Kelie [EMAIL PROTECTED] wrote: Thanks Chris, Tim and Yu-Xi. I'll follow your advice and use database. Hi Kelie If you're happy going with sqlite then stick with it. If on the other hand you were considering XML because you're more comfortable with that (e.g. you find XML easy to work with and you're more familiar with XPath/XQuery than SQL) then you could use XML if you wanted. The choice is not between XML and databases, it's between XML and relational. There are -- shock-horror! -- full-featured XML databases too (e.g. Berkeley DB XML, which is lightweight, fast, embeddable and open source like sqlite, with indexing, transactions etc. if you need that). XML is very widely used in publishing and not only as a data transfer format which happens to be human-readable. The main reason for going for a database over a file in your case is I'd guess to support searching, since performance wouldn't be an issue these days with a few thousand records. Developers tend to have strong feelings in favour of relational (= tabular storage) over xml database (= hierarchical storage) but this will change. If you are asking what would work for your relatively simple use-case, the answer is both, since the storage model isn't that important for a contacts address list. What would work best for you in this case is whichever you would prefer... TimvN -- http://mail.python.org/mailman/listinfo/python-list
Re: which configparse?
On Dec 6, 2007 11:49 PM, Shane Geiger [EMAIL PROTECTED] wrote: Best, is naturally, a somewhat subjective evaluation. That being said, configparser is well regarded. I have also seen these two options that you might want to check out: http://wiki.woodpecker.org.cn/moin/Dict4Ini http://www.voidspace.org.uk/python/configobj.html Thanks for you mentioned Dict4ini, but the new project site is in http://code.google.com/p/dict4ini -- I like python! UliPad The Python Editor: http://code.google.com/p/ulipad/ meide wxPython UI module: http://code.google.com/p/meide/ My Blog: http://www.donews.net/limodou -- http://mail.python.org/mailman/listinfo/python-list
Python Profiler GUI like Matlab?
Hi all, Is there any Python Profiler GUI like Matlab? I found the Matlab Profiler is very intuitive and easy to use. Best regards, Davy -- http://mail.python.org/mailman/listinfo/python-list
Can I embed Windows Python in C# or VC++?
I want to use Python's Windows (python25.dll) version to embed in my C# (or atleast VC++) program for performing syntax checks on the Python expressions which are later supposed to be evaluated at runtime by another C++ program For this, I would like to use CPython API functions such as Py_Initialize, PyModule_New, PyModule_GetDict, PyRun_String, PyObject_GetAttrString, PyObject_CallObject, PyTuple_SetItem other similar functions from my C#/ VC++ program on Windows. I have installed Python251.msi on my Desktop. Can I start doing the development using the include, lib the python25.dll files availale after installing this MSI? -- http://mail.python.org/mailman/listinfo/python-list
PyImport_ImportModule(foo.bar)
I'm trying to import foo.bar in order not to add every single directory with python files to the search path. i immediately follow the import with the PyModule_AddObject call to put the imported module to __main__ module but later on PyEval_EvalCode on Py_CompileString compiled code foo.bar.baz() and dictionary of __main__ used for global and local context does not work (I get NameError). is there an equivalent of import foo.bar as Bar; in c api or should i call into submodules differently? -- http://mail.python.org/mailman/listinfo/python-list
Re: JSON
Joshua Kugler [EMAIL PROTECTED] wrote:
[EMAIL PROTECTED] wrote:
i tried a couple python json libraries. i used simplejson on the
server and was using cjson on the client, but i ran into this issue.
i'm now using simplejson on both sides, but i'm still interested in
this issue. did i do something wrong? is there a bug in one of the
libraries? or something i don't understand about the json spec?
i problem is the line where i call cjson.decode() below:
import simplejson
import cjson
sj = simplejson.dumps('http://server.com')
sj
'http:\\/\\/server.com'
cj = cjson.encode('http://server.com')
cj
'http://server.com;'
simplejson.loads(cj)
u'http://server.com'
cjson.decode(cj)
'http://server.com'
simplejson.loads(sj)
u'http://server.com'
cjson.decode(sj)
'http:\\/\\/server.com' # is this correct
Known issue. See:
http://blog.extracheese.org/2007/07/when-json-isnt-json.html
Neither project has fixed it it seems. Not sure which is actually
the correct way to do it, but it would be nice if they would agree.
Since both Opera and SpiderMonkey give http://server.com as result for
eval('http:\\/\\/server.com'), I'd say cjson gets it wrong (If by
nothing else than majority rule ;). That is unless I'm wrong that in
javascript something like eval(JSON_repr_of_s) == s should be true.
Marc
--
http://mail.python.org/mailman/listinfo/python-list
Re: Best way to merge/sort two sorted lists?...
Aaron Watters [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] | While trying to optimize some NUCULAR libraries I discovered | that the best way to merge 2 sorted lists together | into a new sorted list is to just append | them and re-sort. The current version of list.sort (timsort) was designed to take advantage of pre-existing order. It should discover the 2 sorted sublists and merge them together. It will not really re-sort the way it would with random data. A psyco/Python version can be faster only because it avoids the comparisons need to discover the existing sorted sublists. tjr -- http://mail.python.org/mailman/listinfo/python-list
Thought you would enjoy some funny math cartoons!!!
I just wanted to share some math cartoons (mathtoons) I put together at http://notsohumblepi.com. I thought you guys might enjoy. I tried to figure out how to make a mathtoon involving Pi in place of Python (like Pi in the middle of a snake) but couldn't get it to work. Anyways, I hope you enjoy. Thanks, Craig -- http://mail.python.org/mailman/listinfo/python-list
Re: SimpleXMLRPCServer interruptable?
En Thu, 06 Dec 2007 13:11:09 -0300, Bret [EMAIL PROTECTED] escribió: For completeness, what I ended up doing is this: server = SimpleXMLRPCServer((host, port)) server.socket.settimeout(0.1) ServerWrapper became: def ServerWrapper(): while True: try: server.handle_request() if self.done.isSet(): break except timeout: pass And that seems to do the trick! Giving the socket a timeout allows me to check the Event more frequently and catch the change within a reasonable time. Remember that the timeout applies to *all* socket operations; what if the XML request requires more than 0.1s to read? If handling large requests is more important than the delay at shutdown time, consider raising that value. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Profiler GUI like Matlab?
On 7 Des, 02:58, Davy [EMAIL PROTECTED] wrote: Is there any Python Profiler GUI like Matlab? I found the Matlab Profiler is very intuitive and easy to use. There is a Python profiler. But is does not have a GUI. -- http://mail.python.org/mailman/listinfo/python-list
Re: Capturing global input?
On 6 Des, 22:51, nomihn0 [EMAIL PROTECTED] wrote: I'd like to accept mouse gestures and keyboard shortcuts as input to a program. It depends on which GUI toolkit you use. Look in the wxPython, PyGTK, tkinter or pygame documentation. The nature of this program requires that these commands be issued regardless of the currently active window. As in keylogger? -- http://mail.python.org/mailman/listinfo/python-list
Re: Timeout test hangs IDLE
En Thu, 06 Dec 2007 08:03:49 -0300, Andreas Tawn [EMAIL PROTECTED] escribió: There was a strange error when using 'print' threads. When what I printed filled the entire screen, instead of moving all the text up, IDLE just hanged. Try running your code from the shell instead, to see if the problem is in IDLE. It looks like there's two issues here, an IDLE problem and a me problem ;o) I changed the countTest function to time.sleep(10) rather than a big loop. When I run the script from the command line, the timeout triggers properly after 5 seconds but the countTest function (running in a seperate thread now) continues for the whole 10 seconds. This is the me problem. I though that the timeout function would kill the countTest thread, but it seems like it doesn't do that. Rather, the timout just returns after 5 seconds with the message that the countTest thread is still alive. I guess I need to set event flags so the countTest function can end itself rather than trying to kill it from the main thread? It's not your problem, the cookbook recipe your code is based on should make it clear: it does *not* kill the thread, it just returns to the caller earlier (at most when the timeout elapses). The thread continues to run (and consuming resources, of course). If you actually want to stop a background task, the safest way would be for the thread to test some condition periodically and gracefully stop when requested. If that's not possible, and you have to forcibly kill a running thread, there is a different recipe at http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/496960 (follow the link at the end for an updated version). When I run it from IDLE, everything runs correctly, but after the countTest thread ends after 10 seconds, IDLE hangs as before. IDLE bug, maybe? Not exactly; doing background tasks with a GUI is tricky and requires some kind of cooperation, else the interfase usually becomes unresponsive. How to run background tasks depends on the GUI toolkit used. IDLE uses Tkinter, do you use that toolkit for your final program? -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Class destructor -- strange behaviour
On Dec 6, 3:51 pm, Spes [EMAIL PROTECTED] wrote: Hi, I have this simple code: | #!/usr/bin/python | import codecs | import re | from copy import deepcopy | | class MyClass(object): | def __del__(self): | deepcopy(1) | | x=MyClass() but I get an error: | Exception exceptions.TypeError: 'NoneType' object is not callable in bound method MyClass.__del__ of __main__.MyClass object at 0x6fcf0 ignored The problem disappears if I do anything of this: 1. change - from copy import deepcopy + import copy and call directly copy.deepcopy(1) or 2. don't store object to variable `x' or 3. don't import module `re' The first solution is OK, but I would like to know why it behaves so strange. We have tested on: - Mac OS X Tiger for PPC Python 2.3.5 (#1, Mar 20 2005, 20:38:20) [GCC 3.3 20030304 (Apple Computer, Inc. build 1809)] on darwin - Linux 64bit and 32bit Python 2.4.4 (#1, Oct 30 2007, 14:31:50) [GCC 4.1.2 (Gentoo 4.1.2 p1.0.2)] on linux2 Python 2.5 (r25:51908, Jan 12 2007, 13:57:15) [GCC 4.0.2 20051125 (Red Hat 4.0.2-8)] on linux2 Thanks for the explanation, Vlasta I can't explain why, but it also works if you call del x manually before the script exits. Regards, Jordan -- http://mail.python.org/mailman/listinfo/python-list
Re: Capturing global input?
On Dec 6, 9:16 pm, MonkeeSage [EMAIL PROTECTED] wrote: On Dec 6, 3:51 pm, nomihn0 [EMAIL PROTECTED] wrote: I'd like to accept mouse gestures and keyboard shortcuts as input to a program. The nature of this program requires that these commands be issued regardless of the currently active window. Here's the rub: I need a platform-independent solution. Java supports with its MouseInfo class, but I'd like a Python equivalent without turning to Jython. Is this possible? Thanks in advance. There is no cross-platform way to do that. You have to use whatever interface the OS provides for that (e.g., Xlib events for X11). You could probably write a platform independent way by testing the OS and using the appropriate apis for that OS (assuming that there are python modules like python-xlib for other OS). I wonder why you'd want to though, if Java already provides a solution? If you don't want to muck with Java syntax, what about Jython? Regards, Jordan Ps. I saw you said you didn't want Jython, but I can't see why. -- http://mail.python.org/mailman/listinfo/python-list
