Hello Opalstack community:

In case somebody needs this, here is a guide of how I got virtualenvwrapper working in Opalstack.

Install virtualenvwrapper

I used pip3 install --user virtualenvwrapper as stated in this post

This command installs the virtualenv library because it's a dependency.

Create the virtualenv directory

Just a simple mkdir ~/.virtualenvs but, to be honest, you can call it whatever you prefer.

Check the virtualenvwrapper directory and the python directory

Execute which virtualenvwrapper.sh. In my case (and probably almost all cases), it showed ~/.local/bin/virtualenvwrapper.sh

Then, open the python terminal using the python3 command, and execute the following:

import sys
print(sys.executable)

Again, in my case (and probably almost all cases), it showed /usr/bin/python3

Edit ~/.bashrc and push it to the OS

I used nano but you can use vim or whichever command editor you prefer.

So, I executed nano ~/.bashrc and added the following lines at the end of the file:

export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3
export WORKON_HOME=$HOME/.virtualenvs
export PIP_VIRTUALENV_BASE=$WORKON_HOME # Tell pip to create its virtualenvs in $WORKON_HOME.
export PIP_RESPECT_VIRTUALENV=true # Tell pip to automatically use the currently active virtualenv.
source $HOME/.local/bin/virtualenvwrapper.sh

Finally, source ~/.bashrc in order to load it to the OS.

And that's it. Hope it helps.

Regards.