[python partial function, currying]

partial_function.py

# currying
def make_in_list(alist):
    def in_list(e):
        return e in alist
    return in_list

in_list = make_in_list([1,2,3,4,5])

in_list(9)


# partial
import functools
def e_in_list(e, alist):
    return e in alist

e_in_123 = functools.partial(e_in_list, alist=[1,2,3])

e_in_123(1)

e_in_123(5)