Scoping Ex.1
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x=1
y=2
def a():
global x
z=1
def inner():
nonlocal z
z=z+1 #z is closure
x=z+1
print (x)
print (z)
x=y+1
return inner
def b():
global x
c = a()
y=1
x=x+2
c()
outer_func = a()
outer_func()
outer_func()
b()
Python
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