setuptools setup.py and "extras"

in addition to resolving install dependencies, setuptools supports "extras" with their own dependencies. these can be installed using easy_install, like so: $ easy_install mypackage[extraFeature] what is the best way to cause an extra's dependencies to be installed when using the `python setup

function factories and argument names

i know how to programmatically create python functions: module = __import__( '__main__') def factory( val ): def f( arg=val ): print arg, val f.__name__ = 'function%s' % x return f for x in [1,2,3,4]: func = factory( x ) setattr( module, func.__name__, fu

Re: IOError: [Errno 4] Interrupted system call

i don't have any signal handlers in my code, but i have no idea what is going on in the internals of the pyQt framework that i'm using for the GUI. as far as simply ignoring the exception, that does not seem to work. for instance, here's some code i've tried: p = subprocess.Popen('mycommand', sh

Re: IOError: [Errno 4] Interrupted system call

i'm getting the same error when trying to read results from popen2 within a pyQt window. is this a threading issue? is my pyQt window responsible for interrupting the read? i'm fairly new to python so i'm struggling to figure this out. can you recommend any possible methods of preventing this? fo