curry.py

#!/usr/bin/env python

def curry(f, args=None):
    def curried(arg):
        if args is None:
            args_ = []
        else:
            args_ = args
        args_.append(arg)
        if len(args_) == f.__code__.co_argcount:
            return f(*args_)
        else:
            return curry(f, args_)
    curried.__name__ = f.__name__ + "'" * (len(args) if args else 0)
    return curried

def uncurry(f):
    def uncurried(arg, *args):
        if args:
            return uncurry(f(arg))(*args)
        else:
            return f(arg)
    uncurried.__name__ = f.__name__
    return uncurried

def main():
    @curry
    def add3(a, b, c): 
        return a + b + c
    
    print add3 
    print add3 (1) 
    print add3 (1) (2) 
    print add3 (1) (2) (3)
    print 
    print uncurry(add3)
    print uncurry(add3)(1) 
    print uncurry(add3)(1, 2) 
    print uncurry(add3)(1, 2, 3)

if __name__ == '__main__':
    main()

output

$ ./curry.py
<function add3 at 0xb7727a74>
<function add3' at 0xb7727e2c>
<function add3'' at 0xb7727df4>
6

<function add3 at 0xb7727e2c>
<function add3' at 0xb7727df4>
<function add3'' at 0xb773b5dc>
6