pserve

Python 3.2.3 (default, Sep 25 2013, 18:22:43) 
[GCC 4.6.3] on linux2
Type "help" for more information.

Environment:
  app          The WSGI application.
  registry     Active Pyramid registry.
  request      Active request object.
  root         Root of the default resource tree.
  root_factory Default root factory used to create `root`.

>>> from pkg_resources import get_provider
>>> get_provider('pyramid_debugtoolbar')
<pkg_resources.NullProvider object at 0x4c86d90>
>>> 

python3.2

Python 3.2.3 (default, Sep 25 2013, 18:22:43) 
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from pkg_resources import get_provider
>>> get_provider('pyramid_debugtoolbar')
<pkg_resources.DefaultProvider object at 0x7f12db38a710>
>>>