How does functools partial do what it does? Question: I am not able to get my head on how the partial works in functools. I have the following code from here: >>> sum = lambda x, y : x + y >>> sum(1, 2) 3 >>> incr = lambda y : sum(1, y) >>> incr(2) …
How do I write a function that returns another function? Question: In Python, I’d like to write a function make_cylinder_volume(r) which returns another function. That returned function should be callable with a parameter h, and return the volume of a cylinder with height h and radius r. I know how to return values from functions …
Currying decorator in python Question: I am trying to write a currying decorator in python. I got this far: def curry(fun): cache = [] numargs = fun.func_code.co_argcount def new_fun(*args, **kwargs): print(args) print(kwargs) cache.extend(list(args)) if len(cache) >= numargs: # easier to do it explicitly than with exceptions temp = [] for _ in xrange(numargs): temp.append(cache.pop()) fun(*temp) …
