// capture requirements to install
pip freeze > requirements.txt
// install requirements from requirements.txt
pip install -r requirements.txt
// or
$ env1/bin/pip freeze > requirements.txt
$ env2/bin/pip install -r requirements.txtpip list --format=freeze > requirements.txtFor Unix families: pip3 freeze > requirements.txt
For Windos: pip freeze > requirements.txtpip3 freeze > requirements.txt # Python3
pip freeze > requirements.txt # Python2
# To generate your requrements file do:
pip freeze > requirements.py
# To install the requrements do:
pip install -r requirements.py
# If you want to make sure pip is using python3, you can do this:
python3 -m pip freeze > requirements.py
python3 -m pip install -r requirements.py
# Or:
pip3 freeze > requirements.py
pip3 install -r requirements.py
pip3 freeze > requirements.txt