Description of problem:

pip is supposed to be able to create a virtualenv in one go with the -E option (or work with an existing virtualenv), however this doesn't work as it throws an import error about peak. Creating a virtualenv separately and then using that v-env pip script works. The pip package is a bit outdated (current version is 1.0.2), but I'm not sure if packaging the newest version would fix this issue. It would help nonetheless.


Version-Release number of selected component (if applicable):

Name        : python-pip
Arch        : noarch
Version     : 0.8.3
Release     : 1.fc15

Name        : python-virtualenv
Arch        : noarch
Version     : 1.5.1
Release     : 2.fc15


How reproducible:
Always.

Steps to Reproduce:
1. Try to install anything with /usr/bin/pip-python -E <path>
2.
3.
  
Actual results:
$ /usr/bin/pip-python --version
pip 0.8.3 from /usr/lib/python2.7/site-packages (python 2.7)
$ /usr/bin/pip-python -E /tmp/venv install bottle
Creating new virtualenv environment in /tmp/venv
  New python executable in /tmp/venv/bin/python
  Installing setuptools...done.....................
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/pip/runner.py", line 16, in <module>
    exit = run()
  File "/usr/lib/python2.7/site-packages/pip/runner.py", line 11, in run
    import pip
  File "/usr/lib/python2.7/site-packages/pip/__init__.py", line 9, in <module>
    from pip.basecommand import command_dict, load_command, load_all_commands, command_names
  File "/usr/lib/python2.7/site-packages/pip/basecommand.py", line 12, in <module>
    from pip.baseparser import parser, ConfigOptionParser, UpdatingDefaultsHelpFormatter
  File "/usr/lib/python2.7/site-packages/pip/baseparser.py", line 5, in <module>
    import pkg_resources
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2691, in <module>
    add_activation_listener(lambda dist: dist.activate())
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 668, in subscribe
    callback(dist)
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2691, in <lambda>
    add_activation_listener(lambda dist: dist.activate())
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2195, in activate
    map(declare_namespace, self._get_metadata('namespace_packages.txt'))
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 1776, in declare_namespace
    __import__(parent)
ImportError: No module named peak


Expected results:
A virtual environment in /tmp/venv with the requested package installed (in the example above: bottle)

Additional info:

This works, however:

$ /usr/bin/virtualenv /tmp/venv
New python executable in /tmp/venv/bin/python
Installing setuptools............................done.

$ /usr/bin/pip-python -E /tmp/venv install bottle
Downloading/unpacking bottle
  Downloading bottle-0.9.6.tar.gz (45Kb): 45Kb downloaded
  Running setup.py egg_info for package bottle
    
Installing collected packages: bottle
  Running setup.py install for bottle
    
Successfully installed bottle
Cleaning up...


But if you use the --no-site-packages, it b0rks:


$ /usr/bin/virtualenv --no-site-packages /tmp/venv
New python executable in /tmp/venv/bin/python
Installing setuptools............................done.

$ /usr/bin/pip-python -E /tmp/venv install bottle
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/pip/runner.py", line 16, in <module>
    exit = run()
  File "/usr/lib/python2.7/site-packages/pip/runner.py", line 11, in run
    import pip
  File "/usr/lib/python2.7/site-packages/pip/__init__.py", line 9, in <module>
    from pip.basecommand import command_dict, load_command, load_all_commands, command_names
  File "/usr/lib/python2.7/site-packages/pip/basecommand.py", line 12, in <module>
    from pip.baseparser import parser, ConfigOptionParser, UpdatingDefaultsHelpFormatter
  File "/usr/lib/python2.7/site-packages/pip/baseparser.py", line 5, in <module>
    import pkg_resources
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2691, in <module>
    add_activation_listener(lambda dist: dist.activate())
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 668, in subscribe
    callback(dist)
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2691, in <lambda>
    add_activation_listener(lambda dist: dist.activate())
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2195, in activate
    map(declare_namespace, self._get_metadata('namespace_packages.txt'))
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 1776, in declare_namespace
    __import__(parent)
ImportError: No module named peak

Strangely enough, using the virtualenv's pip script works even with --no-site-packages, and the version is older:

$ /tmp/venv/bin/pip --version
pip 0.8.1 from /tmp/venv/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg (python 2.7)

$ /tmp/venv/bin/pip freeze
wsgiref==0.1.2

$ /tmp/venv/bin/pip install bottle
Downloading/unpacking bottle
  Downloading bottle-0.9.6.tar.gz (45Kb): 45Kb downloaded
  Running setup.py egg_info for package bottle
    
Installing collected packages: bottle
  Running setup.py install for bottle
    
Successfully installed bottle
Cleaning up...

$ /tmp/venv/bin/pip freeze
bottle==0.9.6
wsgiref==0.1.2