Python Error saying "NameError: global name 'true' is not defined"

Question

I'm trying to execute the following Python code:

def monotonic(a):

    n = len(a)

    for i in range(n):

        if((a[i]<a[i+1]) or (a[i]>a[1+1])):

            return true

a = [6, 5, 4, 3, 2]

print(monotonic(a))

And I get the following error:

NameError: global name 'true' is not defined

Answer 1

In python boolean values start with a capital letter so you need to return True instead of true.

If you want to get a deeper understanding of python you can watch this youtube video: