currying.py

# before
def my_decorator(f):
    def wrapper(*args, **kwds):
        print('Calling decorated function')
        return f(*args, **kwds)
    return wrapper
  
# but why not
def my_decorator(f)(*args, **kwds):
    print('Calling decorated function')
    return f(*args, **kwds)

# of course we can go full Haskell

def foldl(f)(seed)(lst):
  x = seed
  for v in lst:
    x = f(seed, x)
  return x

import operator
sum = foldl(operator.add)(0)