global variables explained python code example

Example 1: python global variables

global var1
var1 = 'whatever'

Example 2: python access global variable

globvar = 0

def set_globvar_to_one():
    global globvar    # Needed to modify global copy of globvar
    globvar = 1

def print_globvar():
    print(globvar)     # No need for global declaration to read value of globvar

set_globvar_to_one()
print_globvar()       # Prints 1

Example 3: global variable python

a = 0

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

Example 4: how to global variables in python

def Takenin():
  global ans 
  ans = "This is the coorect way to do it"

def Return():
    Takenin()
    print(f"ans :{ans}")