what does the global function do in python code example

Example 1: how to make variable global in python

global variable
variable = 'whatever'

Example 2: global python

"""
USING GLOBALS ARE A BAD IDEA, THE BEST WAY TO PERFORM AN ACTION WHICH NEEDS GLOBALS WOULD 
BE TO USE RETURN STATEMENTS. GLOBALS SHOULD ONLY EVER BE USED IN RARE OCCASIONS WHEN YOU
NEED THEM
"""

# allows you to modify a variable outside its class or function

EXAMPLE:
  
def test_function():
  global x
  x = 10

test_function()
print(f"x is equal to {x}") # returns x is equal to 10

Example 3: global in python

x = 5

def foo():
    global x = 10
    print("local x:", x)


foo()
print("global x:", x)