py-fastnumbers provides:
* drop-in replacements for the Python built-in int and float that on
  average are up to 2x faster
* a set of convenience functions that wrap the above int and float replacements
  and provides easy, concise, powerful, fast and flexible error handling
* a set of functions that can be used to rapidly identify if an input could be
  converted to int or float

WWW: https://github.com/SethMMorton/fastnumbers