what is a global variable in python code example

Example 1: 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 2: python global variables

global var1
var1 = 'whatever'

Example 3: global variable python

#it is best not to use global variables in a function
#(pass it as an argument)
a = 'This is global a'
def yourFunction():
    global a
    return a[0:2]

Example 4: global variable python

a = 0

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

Example 5: global var in python

a = input('Hello: ')
if a == 'world':
  global b
  b = input('Here')
print b
#Prints the input for be as a result