How to switch from global to local scope in python?

Question

value = 4

def test():
    global value
    print(value + 2)

    value = -10
    print(value+5)

test()
print(value)

I know it is not a good idea to shadow variables; however, I am attempting this just so I can understand the concept. In the above code, is there a way to switch back to the local scope so that value = -10 only changes value to -10 within the function?

Answer 1

value = 4

def test():
    print(globals()['value'] + 2)

    value = -10
    print(value+5)

test()

prints

6
-5

There is no way to "switch" between global value and local value once global value has been declared, but you can let value be a local variable within test and access the global value through the globals() dict.