All things I don't remember about python

virtualenv

virtualenv -p python3 venv
source ./venv/bin/activate

deactivate

requirements.txt

pip3 install -r requirements.txt


# From: https://note.nkmk.me/en/python-pip-install-requirements/

###### Requirements without Version Specifiers ######
nose
nose-cov
beautifulsoup4

###### Requirements with Version Specifiers ######
docopt == 0.6.1             # Version Matching. Must be version 0.6.1
keyring >= 4.1.1            # Minimum version 4.1.1
coverage != 3.5             # Version Exclusion. Anything except version 3.5
Mopidy-Dirble ~= 1.1        # Compatible release. Same as >= 1.1, == 1.*