Pip

pip freeze > requirements.txt
pip install -r requirements.txt

pip install git+https://github.com/numpy/numpy.git

pip install --upgrade pip setuptools

Upgrade setuptools to fix the following error:

## ERROR: Could not find a version that satisfies the requirement [PACKAGE] (from versions: none)
## ERROR: No matching distribution found for [PACKAGE]

pip install --upgrade setuptools

https://stackoverflow.com/questions/21305524/how-to-install-pip-for-python-2

curl https://bootstrap.pypa.io/pip/2.7/get-pip.py -o get-pip.py
python get-pip.py

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