how do you reassign global variables in python

Question

I am currently attempting to run a Python code that has this basic structure:

    var = 0
    def Function2():
        if var == 1:
            ...   
    def Function():
        var = 1
        Function2()

However, when it runs, it doesn't recognize the global variable. Is there any way to fix this?

Shot version: You can read global variables from everywhere, but in order to modify them in a function you need to use the `global` keyword on it first. — Grimmy, Jul 16 '17 at 09:58

score 3 · Answer 1 · edited Apr 18 '21 at 13:32

3

Did you try to write global before the variable name? for example:

a = "Hello"


def change_a():
   global a
   a = "Good"


print(a)

In this mode i've change the content of a from "Hello" to "Good"

edited Apr 18 '21 at 13:32

answered Jul 16 '17 at 10:02

mastrobirraio

1 Answers1