Help with "For loop"

[menator01]

if I'm not mistaken global does not define a variable. On a 2nd note you probably do not need to declare it a global variable unless there is a reason.
Examples:

#! /usr/bin/env python3

myvar = 'some text'
print(f'Outside -> {myvar}')

def myfunc():
    print(f'Inside function - > {myvar}')
myfunc()

class MyClass:
    def __init__(self):
        print(f'Inside class - > {myvar}')
MyClass()

Output:
Outside -> some text
Inside function - > some text
Inside class - > some text

define it to be a blank variable outside the if
de = ''