[Distutils] pkg_resources: failed require

[Ian Bicking]

Phillip J. Eby wrote:
> At 02:54 AM 5/30/2005 -0500, Ian Bicking wrote:
> 
>> I notice when I install into app-packages/, then do:
>>
>>  >>> from pkg_resources import *
>>  >>> require('SomePackage')
>> ... fails ...
>>  >>> import sys
>>  >>> sys.path.append('app-packages')
>>  >>> require('SomePackage')
>> ... still fails ...
>>
>> But if I fix sys.path immediately, then it does work, so the failure
>> seems to be sticky.
> 
> 
> That's very odd; require() doesn't do any caching.  Even the PEP 
> 302-defined caching (sys.path_importer_cache) is from *particular* path 
> entries (e.g. app-packages) to importer objects created for them.  So if 
> app-packages wasn't on sys.path, it never would've had anything cached.
> 
> Are you able to reliably reproduce the double-failure condition?  Is the 
> error message the same each time?

Hmm... I think I got it wrong, this works fine.

Maybe I was confusing this with a bug related to packages with spaces in 
their names.  In particular, WSGIUtils: 
http://www.owlfish.com/software/wsgiutils/downloads/WSGI%20Utils-0.5.tar.gz

I suspect this doesn't work because it creates an egg 
WSGI_Utils-0.5-py2.4.egg/, with a package name (in 
WSGI_Utils-0.5-py2.4.egg/EGG-INFO/PKG-INFO) of "WSGI Utils"



-- 
Ian Bicking  /  ianb at colorstudy.com  / http://blog.ianbicking.org