`razor` pypi package does not work with python3

[pnwamk]

The PyPI page for razor suggests it should work with Python 3, but trying to run slash after installing it results in errors:

$ slash
Traceback (most recent call last):
  File "/usr/local/bin/slash", line 5, in <module>
    from razor.slash import entrypoint
  File "/usr/local/lib/python3.8/site-packages/razor/slash.py", line 200
    if policy <> 'none' and \
               ^
SyntaxError: invalid syntax

For this error I believe it's that the <> operator existed as an alternative to != in Python2 but for Python 3 != is the only such comparison operator. I haven't checked for other incompatibilities.

[pnwamk]

This has been made worse given that recent versions of pip have completely dropped support for python 2.7 and introduce some interesting dynamic failures instead.

For anyone reading and curious: on MacOS, first running sudo easy_install pip==20.3.4 (i.e., installing a version of pip that works with python 2.7) and then running python2.7 -m pip install razor successfully has installed razor and the slash command now works as expected so far.

[caballa]

We have just ported razor to python 3.6 Let me know if you encounter any problem.

Thanks for reminding us to port razor!