LOCAL / Global variable Scope in python

#----------- LOCAL / Global variable Scope  --------------

globalvar = "Python"  # declared as simple variable---> will be consider as global declaration

def someFunction():          #created a function
    globalvar = "version 3.6"        #value of variable changed locally
    print globalvar      # will print version 3.6

someFunction()     # call to the function
print globalvar    # will print Python

def changeGlobalVar():
    global globalvar      # make variable global
    print globalvar        #will print Python
    globalvar = "--->Change Value"        #changed value of variable globally as we declared it global

changeGlobalVar()
print globalvar      #will print --->Change Value

#deleting global variable
del globalvar      #delete the object
print globalvar    # will give an error 'NameError: global name 'globalvar' is not defined'



OUTPUT

root@Avinash:~/python_codes# python variables.py
version 3.6
Python
Python
--->Change Value
Traceback (most recent call last):
  File "variables.py", line 26, in <module>
    print globalvar
NameError: global name 'globalvar' is not defined
root@Avinash:~/python_codes#