python access global variable

1global variable
2variable = 'whatever'

1globvar = 0
2
3def set_globvar_to_one():
4    global globvar    # Needed to modify global copy of globvar
5    globvar = 1
6
7def print_globvar():
8    print(globvar)     # No need for global declaration to read value of globvar
9
10set_globvar_to_one()
11print_globvar()       # Prints 1

1global var1
2var1 = 'whatever'

1#it is best not to use global variables in a function
2#(pass it as an argument)
3a = 'This is global a'
4def yourFunction():
5    global a
6    return a[0:2]

1a = 0
2
3def testFor():
4  global a 
5  if(a == 0):
6    	#run code

1global n
2n = 'whatever'