pyroma should not warn about license if the license is specified in classifiers

[akitada]

The license argument doesn’t have to indicate the license under which your package is being released, although you may optionally do so if you want. If you’re using a standard, well-known license, then your main indication can and should be via the classifiers argument. Classifiers exist for all major open-source licenses.
https://packaging.python.org/guides/distributing-packages-using-setuptools/#license

[regebro]

Why not both?

[drts01]

Why both? :)
If both are specified will pyroma make sure they are consistent?

In the PyPUG tutorials the license argument is also left out, https://packaging.python.org/tutorials/packaging-projects/#creating-setup-py.

I would like if pyroma checked how the PyPA has described. Maybe an config/flag to enforced both?