pip.txt

pip freeze | grep -v "pkg-resources" | sort > frozed-requirements.txt 

truncate -s 0 hashed-requirements.txt 

while read p
do 
    echo "$p"
    hashin "$p" --requirements-file=hashed-requirements.txt 
done < frozed-requirements.txt

# https://pip.pypa.io/en/stable/user_guide/#repeatability
# https://pip.pypa.io/en/stable/reference/pip_install/#hash-checking-mode
# https://stackoverflow.com/questions/39577984/what-is-pkg-resources-0-0-0-in-output-of-pip-freeze-command
# https://github.com/peterbe/hashin

python3 -m venv './venv'
source './venv/bin/activate'
pip install --upgrade pip
pip install --upgrade --requirement './requirements.txt'