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

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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
"""