Python nonlocal statement

Question

What does the Python nonlocal statement do (in Python 3.0 and later)?

There\'s no documentation on the official Python website and help(\"nonloca

Answer 1

with 'nonlocal' inner functions(ie;nested inner functions) can get read & 'write' permission for that specific variable of the outer parent function. And nonlocal can be used only inside inner functions eg:

a = 10
def Outer(msg):
    a = 20
    b = 30
    def Inner():
        c = 50
        d = 60
        print("MU LCL =",locals())
        nonlocal a
        a = 100
        ans = a+c
        print("Hello from Inner",ans)       
        print("value of a Inner : ",a)
    Inner()
    print("value of a Outer : ",a)

res = Outer("Hello World")
print(res)
print("value of a Global : ",a)