Poetry No Module Seed via App Data

For my last project, I used poetry to manage dependencies and package my code. Poetry comes with all the tools you might need to manage your projects in a deterministic way.

Anyway, after running poetry init in an existing project, I tried to let poetry create a virtuale environment, by adding the first dependecy, but when I did poetry add twisted it suddenly hang out, printing:

No module named 'virtualenv.seed.via_app_data'

Why is that? Because poetry was using the wrong virtualenv instance, so to solve this:

1. Remove all virtualenv istances

   sudo apt remove --purge python3-virtualenv virtualenv

2. Remove unused dependencies

   sudo apt autoremove

3. Install virtualenv

   pip3 install virtualenv

4. Add dependencies with poetry

   poetry add <dependecy_name>

Now it should work.