python refer to a global variable code example

Example 1: python global variables

global var1
var1 = 'whatever'

Example 2: global variable python

a = 0

def testFor():
  global a 
  if(a == 0):
    	#run code

Example 3: global in python

x = 5

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


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