On Oct 29, 2007, at 11:01 AM, Phil Christensen wrote:

I saw this pop up over on -web, but I'd like to ask about this...

On Oct 29, 2007, at 3:49 AM, David Reid wrote:

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On Oct 28, 2007, at 6:14 PM, aaron smith wrote:

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quick newb question. I installed twisted from source on mac os x leopard. When I run:

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python import twisted from twisted.web import http

I get an ImportError: ImportError: No module named web

Unfortunately there is an incomplete distribution of twisted 2.4 in /System/Library/Frameworks

Your source install likely went into /Library/Python/2.5/site- packages/ which is also unfortunately after /System/Library/ Frameworks in the PYTHONPATH.

Put /Library/Python/2.5/site-packages/ at the front of your PYTHONPATH.

This seems like a relatively large issue with respect to Twisted support on Mac OS X. Is it really going to be necessary to set an environment variable anywhere you want to use Twisted? I guess this would be an issue for any of the packages distributed in Extras, but this is the one I have the most opinions about ;-)...

Is there some other way to modify your path? I assume .pth files won't work for this, since they only append to the path.

I'm going to answer my own question on this. A nice way to fix this is to create a .pth file in /Library/Python/2.5/site-packages, with the following line:

import sys; sys.path.insert(0, '/Library/Python/2.5/site-packages')

On my machine for some reason i see the site-packages directory in there twice (even before this .pth file was added), so there's a part of me that wants to go with:

import sys; sys.path = [s for s in sys.path if s != '/Library/Python/ 2.5/site-packages']; sys.path.insert(0, '/Library/Python/2.5/site- packages')

but that only seems to get rid of one of them. It doesn't seem to matter anyways, so I guess the first version is good enough.

-phil