AttributeError: module 'site' has no attribute 'getsitepackages'

Issue description

python version 3.7.3 pipenv version 2018.11.26

When I try to use site.py#getsitepackages() in pipenv environment, the below error occurrs.

AttributeError: module 'site' has no attribute 'getsitepackages'

When I use the same module in pip environment, the error does not occur.

The cause is probably that pipenv doesn’t refer site.py installed in python environment. I checked the installed directory.

pipenv --venv
$HOME/.local/share/virtualenvs/$hash
ls -l $HOME/.local/share/virtualenvs/$hash/lib/python3.7 | grep site.py
-rw-rw-r--   1 $user $user 28389 Jun  6 07:13 site.py

The aforementioned site.py does not have getsitepackages() method.

The other modules refer to the modules installed in python environment.

E.g. os.py

ls -l $HOME/.local/share/virtualenvs/$hash/lib/python3.7 | grep os.py
lrwxrwxrwx   1 $user $user    51 Jun  6 07:13 os.py -> /usr/local/pyenv/versions/3.7.3/lib/python3.7/os.py

Expected result

Even in pipenv environment, site.py#getsitepackages() method is available.

Steps to replicate

Install python3.7.3 Install pipenv by pip Run the below pipenv run python -c "import site; site.getsitepackages()"

[maludwig]

I’ve gotten this issue on Python 3.7.0, Windows 10, in a virtualenv.

As a workaround that seems to be holding, outside of the virtualenv, I did:

python

Python 3.7.0 (v3.7.0:1bf9cc5093, Jun 27 2018, 04:59:51) [MSC v.1914 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import site
>>> site.getsitepackages()
['C:\\Users\\maludwig\\AppData\\Local\\Programs\\Python\\Python37', 'C:\\Users\\maludwig\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages']

Then I simply edited the site.py in my virtualenv, and added the missing function:

def getsitepackages():
    return ['C:\\Users\\maludwig\\AppData\\Local\\Programs\\Python\\Python37', 'C:\\Users\\maludwig\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages']

It’s a hacky workaround, but hopefully this helps someone else.

[vashek]

This started happening today. I installed a package in pipenv and started throwing this error. I then deleted the environment and created a new, now it won’t work. I can’t even open python.exe

Delete the virtual environment, change the pywin32 environment in your Pipfile to “==225”, and then run pipenv update. If you don’t have a pywin32 requirement, it’s probably required by another required package. Just add pywin32 with the “==225” version into your Pipfile.