This utility attempts to parse an OpenStack requirements.txt file as input, and produce a list of Debian
dependencies as output.
It takes the first argument as the file to parse. If this utility is called without a parameter, it will
attempt to read the requirements.txt and test-requirements.txt file.
Note that this is far from perfect, and that you *WILL* need to manually check for the dependencies.
*CASESOFMANUALEDDITING*:
Some packages should never be in the dependencies in Debian as they are
included in Python (version 2 or 3). If you find one that is missing, just add it to the
BLACK_LIST(for missing packages of Python 2) and/or the BLACK_LIST_PY3 (for missing packages of
Python 3).