PyPi package name: redirect dash / minus ↔ underscore

[uda]

In pypi, some package names containing a dash / minus are redirected to the same link with underscores, and some the other way around, in libraries.io this is not reflected, it would be nice to not reach a 404 over this.

Examples:

• minus → underscore: https://pypi.org/project/semantic-version/ → https://pypi.org/project/semantic_version/
• underscore → minus: https://pypi.org/project/universal_analytics_python/ → https://pypi.org/project/universal-analytics-python/

[AndreiPashkin]

Another example: https://libraries.io/api/pypi/facebook_business vs https://libraries.io/api/pypi/facebook-business

It seems like originally the package was called facebook_business but then was renamed to facebook-business. PyPI API says so: https://pypi.org/pypi/facebook_business/json

And it seems like Libraries.io just stopped updating facebook_business package without handling renaming.