Python pip doesn't work properly in zsh

[xzmeng]

Bug description

Packages installed with pip under bash cannot be found under zsh.

Steps to reproduce

1. Open an empty workspace.
2. $ pip install flask (under bash)
3. Create a new zsh terminal. (directly from the VSCode, not from an existing bash)
4. $ python -c "import flask" (under zsh)

Traceback (most recent call last):
File "", line 1, in
ModuleNotFoundError: No module named 'flask'

Expected behavior

Packages should be available regardless of shell type.

Example repository

https://github.com/xzmeng/xzmeng

Anything else?

workspace-images/chunks/lang-python/python_hook.bash

Line 10 in 72f19c9

export PYTHONUSERBASE="$GP_PYENV_MIRROR/user/current"

workspace-images/chunks/lang-python/Dockerfile

Line 41 in 72f19c9

COPY --chown=gitpod:gitpod python_hook.bash $HOME/.bashrc.d/60-python

I guess the PYTHONUSERBASE environment variable is to allow the packages installed by pip to remain after the workspace is restarted, but if it is only set in bash, other kinds of shells will have inconsistencies.

Is it feasible to put this process in pyenv shims , so that any we don't care about shell types ?

[axonasif]

Hi @xzmeng, it might be due to a recent change of how we start the IDE process and it's child terminals.

As a workaround, you can follow the below page to have the pyenv dynamic shell environment loaded:

• https://github.com/gitpod-io/website/blob/3dcefffc9621c7a99ae99a070967fb1d6ff5ae9c/gitpod/docs/configure/workspaces/workspace-image.md#load-bash-environment-in-custom-shell

Is it feasible to put this process in pyenv shims , so that any we don't care about shell types ?

Probably, but it might be a bit expensive and more complicated as you have to load pyenv specifically for each shell on every invocation:

• https://github.com/pyenv/pyenv#set-up-your-shell-environment-for-pyenv

[xzmeng]

Source all export variables from bash makes me a bit nervous.
Anyway, thanks for the solutions. I prefer to modify my dotfiles according to the script you supplied.

[akosyakov]

Linked in gitpod-io/gitpod#10105 to look at when we work on support of other shells besides bash.