Seems everyone recommends virtualenv for multiple python versions (on osx), but does it even work with python 3.0? I downloaded it, and it doesn't seem to.. And I don't really understand how it works, Can you 'turn on' on env at a time or something? What I want is to leave the system python 2.5 (obviously), and to have python 3.1.1 with ...
I have started learning Python by writing a small application using Python 3.1 and py-postgresql. Now I want to turn it into a web application. But it seems that most frameworks such as web-py, django, zope are still based on Python 2.x. Unfortunately py-postgresql is incompatible with Python 2.x. Do I have to rewrite all my classes an...
I'm trying to convert a 2.5 program to 3. Is there a way in python 3 to change a byte string, such as b'\x01\x02' to a python 2.5 style string, such as '\x01\x02', so that string and byte-by-byte comparisons work similarly to 2.5? I'm reading the string from a binary file. I have a 2.5 program that reads bytes from a file, then compare...
I've been studying Python 3 recently and I have come across a conundrum: I want to expand my abilities by working on an open source project, but I seem to have trouble finding any specifically for Python 3. I know that this question has been asked before: Such as here, And here, Unfortunately these all seem to be using Python <= 2.6 and...
I thought this would print 3, but it prints 1: def f(): a = 1 exec("a = 3") print(a) ...
I want to access COM objects using Python 3.1, but I can't find a library to support 3.x. Do I need to use some extension or there is something in the standard library? ...
Scott, I'd like to thank you for your BitString program. I am working on interpreting data from a neutron detector, and I've found that this module is just the tool I need. Unfortunately, I have yet to get the module to successfully pass test-bitstring.py. I'm running Windows XP and Python 3.1. I've downloaded your file bitstring-0.4...
xrange function doesn't work for large integers: >>> N = 10**100 >>> xrange(N) Traceback (most recent call last): ... OverflowError: long int too large to convert to int >>> xrange(N, N+10) Traceback (most recent call last): ... OverflowError: long int too large to convert to int Python 3.x: >>> N = 10**100 >>> r = range(N) >>> r = r...
One of the feature I like in RoR is the db management, it can hide all the sql statement, also, it is very easy to change different db in RoR, is there any similar framework in Python 3000? ...
It looks like PyObjC is not ported to Python 3 yet. Meanwhile is there a way to write Cocoa applications using Python 3? I am intending to start a new MacOSX GUI application project and though5 would want to use Python 3.x instead of Python 2.x. ...
I've been looking really hard at all of the way**(s)** one can develop web applications using Python. For reference, we are using RHEL 64bit, apache, mod_wsgi. History: PHP + MySQL years ago PHP + Python 2.x + MySQL recently and current Python + PostgreSQL working on it We use a great library for communicating between PHP and Pytho...
Anyone know of a good feed parser for python 3.1? I was using feedparser for 2.5 but it doesn't seem to be ported to 3.1 yet, and it's apparently more complicated than just running 2to3.py on it. Any help? ...
I actually want to create a new local. I know it sounds dubious, but I think I have a nice use case for this. Essentially my problem is that this code throws "NameError: global name 'eggs' is not defined" when I try to print eggs: def f(): import inspect frame_who_called = inspect.stack()[1][0] frame_who_called.f_locals['egg...
I couldn't find one that works with Python 3.1. Any suggestions for a WSDL-consuming Python 3 SOAP client module/library? ...
Summary: Building Python 3.1 on RHEL 5.3 64 bit with --enable-shared fails to compile all extensions. Building "normal" works fine without any problems. Please note that this question may seem to blur the line between programming and system administration. However, I believe that because it has to deal directly with getting language s...
I'm coding a small piece of server software for the personal use of several users. Not hundreds, not thousands, but perhaps 3-10 at a time. Since it's a threaded server, SQLite doesn't work. It complains about threads like this: ProgrammingError: SQLite objects created in a thread can only be used in that same thread.The object was ...
I want to dynamically import a list of modules. I'm having a problem doing this. Python always yells out an ImportError and tells me my module doesn't exist. First I get the list of module filenames and chop off the ".py" suffixes, like so: viable_plugins = filter(is_plugin, os.listdir(plugin_dir)) viable_plugins = map(lambda name: nam...
When will be Python 3.x ready for serious production? I'm thinking mainly in web apps. I have been programming with the 3.x using only the "batteries included" and all works just fine, but I am forced to go back to 2.x when I have to make any serious work in the web (eg, django and/or google app engine). I am primarily interested in thes...
I have a directory structure that looks like this: project/ __init__.py foo/ __init.py__ first.py second.py third.py plum.py In project/foo/__init__.py I import classes from first.py, second.py and third.py and put them in __all__. There's a class in first.py nam...
I've recently ported my Python project to run on Python 3.1. For that I had to adopt the policy of relative imports within the submodules and subpackages of my project. I've don’t that and now the project itself works, but I noticed I can't execute any of the subpackages or submodules in it. If I try, I get "builtins.ValueError: Attempte...