100 def parent 200 print parent- def child global print child- child p

x = 100
def parent():
	x = 200
	print 'parent-',x
	def child():
		global x
		x+=1
		print 'child-',x
	child()
	print 'parent-',x
	
print '<module>',x
parent()
print '<module>',x

"""
output:
<module> 100
parent- 200
child- 101
parent- 200
<module> 101

"""