The global Statement : global « Function « Python Tutorial

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Python Tutorial » Function » global

10.10.5.The global Statement

# Global names are names at the top level of the enclosing module file.



# Global names must be declared only if they are assigned in a function.



# Global names may be referenced in a function without being declared.



X = 88 



def func(  ):

    global X

    X = 99                     # Global X: outside def



func(  )

print X                        # Prints 99

10.10.global
	10.10.1.	only the most local and global namespaces can be modified
	10.10.2.	global Statement
	10.10.3.	Scoping example.
	10.10.4.	Demonstrates global variables
	10.10.5.	The global Statement
	10.10.6.	declare it in a global statement:
	10.10.7.	Within a function, you can't use both local and global versions of the same name

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