Comment by b5n

I understand no one wants to deal with unexpected issues, especially when you're trying to get something done. Why not use virtual environments? You keep packages out of your system's python, and if you run into issues like above you can just recreate it:

  b5n:~/venv_dir$ python3 -m venv im_a_venv
  b5n:~/venv_dir$ . im_a_venv/bin/activate
  (im_a_venv)b5n:~/venv_dir$ pip install requests
  (im_a_venv)b5n:~/venv_dir$ pip freeze > requirements.txt
  (im_a_venv)b5n:~/venv_dir$ deactivate

  b5n:~/venv_dir$ python3 -m venv another_venv
  b5n:~/venv_dir$ . another_venv/bin/activate
  (another_venv)b@b5n:~/venv_dir$ pip install -r requirements.txt