According to its website, fastcore is a set of “Python goodies to make your coding faster, easier, and more maintainable”.
“Fastcore [adds] to Python features inspired by other languages we’ve loved, like multiple dispatch from Julia, mixins from Ruby, and currying, binding, and more from Haskell. It also adds some “missing features” and clean up some rough edges in the Python standard library, such as simplifying parallel processing, and bringing ideas from NumPy over to Python’s list type.”