I built Python 3.3.0 from source on my Ubuntu 13.10 laptop.
When using the /usr/bin/virtualenv -p /python3.3.0/bin/python3 foo_virt command to create a virtual environemnt, I see no modules installed when running pip freeze, which is the behavior I expect.
When using /python3.3.0/bin/python3 -m venv foo_virt, I see tons of modules installed:
(foo_virt) user@laptop:/foo_virt$ /usr/bin/pip freeze --local
Jinja2==2.7
Mako==0.8.1
MarkupSafe==0.15
PAM==0.4.2
Pillow==2.0.0
Pygments==1.6
SecretStorage==1.0.0
... (total of 75 modules listed)
I tried then to install pip for that specific version of Python, by running, as per the module's documentation: python3 get-pip.py. But I still see all these modules:
(foo_virt) user@laptop:/foo_virt$ which pip
/foo_virt/bin/pip
(foo_virt) user@laptop:/foo_virt$ pip freeze --local
Jinja2==2.7
Mako==0.8.1
MarkupSafe==0.15
PAM==0.4.2
Pillow==2.0.0
Pygments==1.6
SecretStorage==1.0.0
... (still 75 modules)
How do I use venv so no modules are installed in the virtual environment? I didn't find any option in the documentation to help me. Also, this issue is not happening on Windows 7. Thanks!
bash caches commands found by searching the PATH. You can see the current cache by entering hash. Adding -r resets the cache. -d will delete an individual name. Sourcing the activate script should reset the cache:
# This should detect bash and zsh, which have a hash command that must
# be called to get it to forget past commands. Without forgetting
# past commands the $PATH changes we made may not be respected
if [ -n "$BASH" -o -n "$ZSH_VERSION" ] ; then
hash -r
fi
Maybe you ran the system pip before get-pip.py. In that case hash -d pip solves the problem.