Setting up a virtualenv: No module named 'pip'

importerror, pip, python, virtualenv

Solution

Annoyingly, it looks like this might be a Python bug. https://github.com/pypa/virtualenv/issues/564 references http://bugs.python.org/issue20621, which is still open but looks like it's going to be fixed in 3.3.5.

Dropping my Python installation back down to 3.3.3 fixed the issue.

Problem

I have a fresh install of Python 3.3.4 on a Windows Server 2008 R2 machine. I've successfully installed the latest versions of Setuptools, Pip and Virtualenv globally: ``` python ez_setup.py easy_install pip pip install virtualenv ``` Now when I try to set up a virtualenv using `virtualenv ENV` I get the following stack trace: ``` New python executable in ENV\Scripts\python.exe Installing setuptools, pip... Complete output from command [path redacted]\ENV\Scripts\python.exe -c "import sys, pip; sys...d\"] + sys.argv[1:]))" setuptools pip: Traceback (most recent call last): File "<string>", line 1, in <module> ImportError: No module named 'pip' ---------------------------------------- ...Installing setuptools, pip...done. Traceback (most recent call last): File "C:\Python33\lib\runpy.py", line 160, in _run_module_as_main "__main__", fname, loader, pkg_name) File "C:\Python33\lib\runpy.py", line 73, in _run_code exec(code, run_globals) File "C:\Python33\Scripts\virtualenv.exe\__main__.py", line 9, in <module> File "C:\Python33\lib\site-packages\virtualenv.py", line 824, in main symlink=options.symlink) File "C:\Python33\lib\site-packages\virtualenv.py", line 992, in create_environment install_wheel(to_install, py_executable, search_dirs) File "C:\Python33\lib\site-packages\virtualenv.py", line 960, in install_wheel 'PIP_NO_INDEX': '1' File "C:\Python33\lib\site-packages\virtualenv.py", line 902, in call_subprocess % (cmd_desc, proc.returncode)) OSError: Command [path redacted]\ENV\Scripts\python.exe -c "import sys, pip; sys...d\"] + sys.argv[1:]))" setuptools pip failed with error code 1 ``` I've never seen this error before, and the stack trace doesn't make any sense to me. I can successfully `import pip` from a Python shell. Can anyone help me fix this? Update The env installs successfully when I supply the `--system-site-packages` flag.

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