Custom proprietary license support

[Ivashkaization]

Library has following license metadata:

License: X Proprietary
Classifier: License :: Other/Proprietary License

And liccheck.ini file has following authorized license in it:

[Licenses]
authorized_licenses:
        x proprietary

But liccheck fails, because it needs Other/Proprietary License (as classifier license) to be in liccheck.ini file

However, this doesn't reproduce on versions below 0.5.2

I suppose changing:

python-license-check/liccheck/command_line.py

Line 119 in 668ea7b

licenses = get_license(dist) + get_license_OSI_classifiers(dist)

to:

python-license-check/liccheck/command_line.py

Line 119 in 3cbce20

licenses = get_licenses_from_classifiers(dist) or get_license(dist) or []

caused it.

Maybe liccheck should handle proprietary licenses differently to avoid allowing all Other/Proprietary License instead of custom proprietary licenses?

[Niccolum]

What about progress? Still waiting?