def apply_twice(func, arg): return func(func(arg)) def add_five(x): return x + 5 print(apply_twice(add_five, 10))

Question

to my best understanding
let's rename our functions as
def a(b,c) --- which is the same thing as def apply_twice(func,arg)

now the second function will be def p(k) which is the same this as def add_five(x)

now let's bring our renamed functions out

def a(b,c):
return b(b(c))

def p(k):
return k + 5

print(a(p,10))
our b will change to p now

p(p(c))
c=10
p=k + 5
solve the inner parenthesis which is
p(p(10)) anywhere you find "k" replace it with 10
p(k+5)
p(10+5)
p(15)
now our "k" has changed to 15, now solve the last p, we have:
p(15)
k+5 (input 15 as k)
15 + 5
20

Answer 1

Sooo, what's the question?

Answer 2

Nice detail break down, but for code readability sake, "apply_twice" and "add_five" serves better because they give better understanding of what they do opposed to "a" or "p" : )

Answer 3

Tijani Julius Best I didn't see any question either, I know that sample came with Python lesson, but Hatsy was asking whether if you have a question, because all I see up there was you explaining your idea to change function names, and that is still not a question.

Remember what this forum purpose though, to ask questions related to coding : )

* Edit: I'm outta here *

Answer 4

that's the question at top