Some experiments with closures in Python 3

py3_closures.py

def closure():
    container = 0
    def inc():
        nonlocal container
        container += 1
    def get():
        return container
    def dec():
        nonlocal container
        container -= 1
    def set(item):
        nonlocal container
        container = item
    return inc, dec, set, get


if __name__ == "__main__":
    inc, dec, set, get = closure()
    set(1)
    for i in range(10):
	inc()
    for i in range(5):
        dec()
    print(get())