Solution to pip sourcedistribution error

If you receive the FIX ImportError: cannot import name 'SourceDistribution' error after installing pip with get-pip.py, the error is probably due to a problem in the 20th version of pip.

To solve the error:

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

python3.6 get-pip pip==19.3.1