Understanding map function

Asked Oct 19 '19 at 21:31

Active Oct 19 '19 at 21:31

Viewed 28 times

What would be the closest equivalent to the map function in python? For example:

def my_map(func, arg_list):
    return [func(arg) for arg in arg_list]

def my_squared_func(arg):
    return arg * arg

my_map(func=squared, arg_list=[1,2,3,4,5])
[1, 4, 9, 16, 25]

Is this approximately what map() returns, if not, what does the function look like?

asked Oct 19 '19 at 21:31

FI-Info

tl;dr of dupe: Yes. – Joseph Sible-Reinstate Monica Oct 19 '19 at 21:34
https://docs.python.org/3/library/functions.html#map – Craicerjack Oct 19 '19 at 21:35
@JosephSible it doesn't seem that way though? It seems `map` passed back a generator instead of just a list? – FI-Info Oct 19 '19 at 21:35
"Return an iterator that applies function to every item of iterable, yielding the results." see docs in link above – Craicerjack Oct 19 '19 at 21:36
1

@FI-Info You did say "approximately" in your question. The generator and the list will have the same elements in the same order, and in most cases, Python lets you use them interchangeably. – Joseph Sible-Reinstate Monica Oct 19 '19 at 21:36

Understanding map function

0 Answers0