Allow to run with all Python optimizations enabled

[mondeja]

Resolves #606

[sigmavirus24]

I'm not speaking as a maintainer here but I don't think this is desirable in the slightest. Using the docstrings for explaining the error is maybe questionable but just removing the docstrings altogether is a big mistake and hurts maintainability and readability of this tool

[mondeja]

I'm open to duplicate the explanations to avoid the docstrings stripping and add a test to synchronize docstrings with explanations. If a maintainer can take a final decission I'll be happy to implement it 👍🏼