[Distutils] [setuptools] Bug in setuptools ImpLoader

[Jeremy Kloth]

From PEP 302:

  The load_module() method has a few responsibilities that it must
    fulfill *before* it runs any code:

    - If there is an existing module object named 'fullname' in
      sys.modules, the loader *must* use that existing module.
      (Otherwise, the reload() builtin will not work correctly.)
      If a module named 'fullname' does not exist in sys.modules,
      the loader must create a new module object and add it to
      sys.modules.
(emphasis on must)

The current implementation always reloads the module if it exists.  This 
problem exists in both the 0.6 and 0.7 series.  Since pkgutil is in Python 
2.5, this is an issue there as well.

-- 
Jeremy Kloth
http://4suite.org/