Python is no Scala when it comes to operator overloading, but it has enough to make parser combinators work cleanly. funcparserlib [1] and Parsita [2] are two s

Python is no Scala when it comes to operator overloading, but it has enough to make parser combinators work cleanly. funcparserlib [1] and Parsita [2] are two such libraries. For example, this does what you probably expect in Parsita: real = reg(r'[+-]?\d+\.\d+(e[+-]?\d+)?') | 'nan' | 'inf' > float (Full disclosure: I wrote Parsita.) [1]: https://github.com/vlasovskikh/funcparserlib https://github.com/vlasovskikh/funcparserlib [2]: https://github.com/drhagen/parsita https://github.com/drhagen/parsita