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• 64-bit integers in Cython

  - by Homayoon

  I'm trying to interface a C++ library (pHash) with Python using Cython, but I have trouble with some of the types. The library functions use "unsigned long long" and I can't find a way to declare variables and parameters with this type. I searched for a list of the types that I can use with cdef but I found nothing. Can anyone point me to such a list (if it exists) or otherwise suggest a way to use 64 bit types in Cython? Thanks.

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• Google app engine: empty property in datastore

  - by Pete

  Dear All, Let say I have a model: class A(db.Model): B = db.StringProperty() C = db.StringProperty() How do I query if I wanted to search all empty property (not None, just empty) in C using python?

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• Building proper link with spaces

  - by Joel

  Hello, I have the following code in Python: linkHTML = "<a href=\"page?q=%s\">click here</a>" % strLink The problem is that when strLink has spaces in it the link shows up as <a href="page?q=with space">click here</a> I can use strLink.replace(" ","+") But I am sure there are other characters which can cause errors. I tried using urllib.quote(strLink) But it doesn't seem to help. Thanks! Joel

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• What's the Python2.5 equivalent of Python2.6 translate with None as first param?

  - by Thierry Lam

  In Python 2.6, I can run the following fine to strip out chars like -() '(123) 456-7890'.translate(None, '-(), ') Python2.5 translate does not accept None, how can I do the above in 2.5?

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• supported MySQL for Python2.6.1

  - by SKSK

  Can any one tell me which MySQL version is suitable for Python2.6.1 to connect MySQLdb, I am using MySQL4.0.23 and MySQLdb of MySQL-python-1.2.3c1.win32-py2.6 after successfully installation also its showing No module named MySQLdb and I sent the Environment Variables also properly for Python2.6, using Windows XP, tested import MySQLdb through command prompt its not showing any errors then what could be the problem, I am straggling on this since last 2days, Please tell what could be the problem

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• Does OOP make sense for small scripts?

  - by Fabian

  I mostly write small scripts in python, about 50 - 250 lines of code. I usually don't use any objects, just straightforward procedural programming. I know OOP basics and I have used object in other programming languages before, but for small scripts I don't see how objects would improve them. But maybe that is just my limited experience with OOP. Am I missing something by not trying harder to use objects, or does OOP just not make a lot of sense for small scripts?

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• where is the 'ObjectPaginator' in django.core.paginator ??

  - by zjm1126

  i found this code in http://code.google.com/p/verysmallforumforgae/ manin.py: from django.core.paginator import ObjectPaginator but i can't find ObjectPaginator ,my python's version is 2.5 where is it ? thanks

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• When will Unladen Swallow be "done" or "ready" for real use?

  - by orokusaki

  It looks like Google hasn't updated the results section since the Q4 2009 posting. I've been wondering when it will be put in the Python trunk, and if it's, in any way, production ready. Also, "We aspire to do no original work" is in the Q4 plan. Did Google bite off more than what they could handle, or does anyone know what the real story is?

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• Assigning IDs to instances of a class (Pythonic)

  - by mellort

  I want to have each instance of some class have a unique integer identifier based on the order that I create them, starting with (say) 0. In Java, I could do this with a static class variable. I know I can emulate the same sort of behavior with Python, but what would be the most 'Pythonic' way to do this? Thanks

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• GetLastInputInfo equivalent in Linux to detect last input time

  - by SaM

  Is there a GetLastInputInfo() equivalent that can be used in Linux? The intention is to detect the last input time (keyboard or mouse) of the user. Am using python to script the program.

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• Sending emails with sendmail doesn't work for large emails

  - by Guy

  I'm using python's sendmail in the following way: msg = <SOME MESSAGE> s = smtplib.SMTP('localhost') s.sendmail(me, you, msg.as_string()) s.quit() This usually works fine but it fails when the message is pretty big (around 200 lines). Any ideas what can cause this?

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• ctypes buffer modification

  - by Chris

  Hi, I need to call a c library from my python code. The c library does a lot of image manipulation, so I am passing it image buffers allocated using create_string_buffer. The problem is that I also need to manipulate and change these buffers. What is the best way to reach in and twiddle individual values in my buffers? The buffers are all uint8 buffers. Thanks!

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• for line in open(filename)

  - by foosion

  I frequently see python code similar to for line in open(filename): do_something(line) When does filename get closed with this code? Would it be better to write with open(filename) as f: for line in f.readlines(): do_something(line)

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• How to find out the exact RSS XML path of a website?

  - by Winston

  How do I get the exact feed.xml/rss.xml/atom.xml path of a website? For example, I supplied "http://www.example.com/news/today/this_is_a_news", but the rss is pointing to "http://www.example.com/rss/feed.xml", most modern browsers have this features already and I'm curious how did they get them. Can you cite an example code in ruby, python or bash?

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• How to simulate tuples and sets in C#?

  - by Hesam Qodsi

  I want to use some features of python like as Tuples and Sets in c#. should I implement them? or there are already implemented? could anybody knows a library of dynamic data structures for .net languages?

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• Problem with VIM - "f" calling the "fold" command instead of "find"

  - by Tony

  This is happening in python files. For example, I want to do type "fC" in normal mode, and instead of finding the first "C" character, it is just doing code fold toggling.

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• Check for a valid domain name in a string?

  - by demos

  I am using python and would like a simple api or regex to check for a domain name's validity. By validity I am the syntactical validity and not whether the domain name actually exists on the Internet or not.

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• XML: remove child node of a node

  - by nebenmir

  I want to find all nodes in a xml file that have a certain tag-name, lets say "foo". If those foo-tags have them thelves child nodes with node-name "bar", then I want to remove those nodes. The result should be written to a file. // remove this one // don't remove this one Thanx for any hints. As the tag indicates, I would like to do this with python.

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• Passing values into regex match function

  - by Tim

  In python (it's a Django filter), I'm doing this: lReturn = re.sub(r'\[usecase:([ \w]+)]', r'EXTEND WITH <a href="/usecase/%s/\1/">\1</a>' % pCurrentProjectName, lReturn) I'd like to use a function instead of a string (so I can check that the usercase is a valid name), so it would change to this: def _match_function(matchobj): lMatch = matchobj.group(1) return "EXTEND WITH <a href='/usecase/%s/%s/'>%s</a>" % (pCurrentProjectName, lMatch, lMatch) lReturn = re.sub(r'\[usecase:([ \w]+)]', _match_function, lReturn) How do I get pCurrentProjectName into the _match_function() function?

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• Is it possible to autoload a file based on the namespace in PHP?

  - by izym

  Would what mentioned in the title be possible? Python module style that is. See this example for what I exactly mean. index.php <?php use Hello\World; World::greet(); Hello/World.php <?php namespace Hello\World; function greet() { echo 'Hello, World!'; } Would this be possible?

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• How should a Gnome applet store its configuration data?

  - by George Edison

  I have a Gnome applet written in Python. In order to save configuration data/settings, it creates a file ~/.appname. However, this prevents multiple instances of the applet from being added to the panel because each cannot have its own settings. How can I store the settings in a way that allows each instance to have its own unique settings? Update: I specifically want to know how to store settings per instance.

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• how to print the linenumber of incorrectwords located in a txt file ?

  - by jad

  i have this piece of code which only prints the line number of the incorrect words. i want it to print the linenumbers of the incorrect words from the txt file. Am i able to modify this code to do that? # text1 is my incorrect words # words is my text file where my incorrect word are in from collections import defaultdict d = defaultdict(list) for lineno, word in enumerate(text1): d[word].append(lineno) print(d)

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• How do "and" and "or" work when combined in one statement?

  - by orokusaki

  For some reason this function confused me: def protocol(port): return port == "443" and "https://" or "http://" Can somebody explain the order of what's happening behind the scenes to make this work the way it does. I understood it as this until I tried it: Either A) def protocol(port): if port == "443": if bool("https://"): return True elif bool("http://"): return True return False Or B) def protocol(port): if port == "443": return True + "https://" else: return True + "http://" Is this some sort of special case in Python, or am I completely misunderstanding how statements work?

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• Is there a wxPython equivalent of datetime.combine?

  - by Noah

  The python datetime.datetime object has the combine method. Is there an equivalent for wx.DateTime objects?

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• Learn Actionscript 3.0+Flash Vs. C#

  - by user335932

  I have a background in python and I'm looking for a new language. I am almost only intrested in making games. I have come to 2 languages. C# and Action Script. C# because Microsoft allows you to make Indie XBLA games programmed in C# ONLY. Action Script so I can make flash games for new grounds and ect. What do you think is better to learn in the long run?

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