Decorators

print('decorator sample1')
def counter(fn):
    count = 0
    
    def inner(*args, **kwargs):
        nonlocal count
        count += 1
        print('Function {0} was called {1} times'.format(fn.__name__,count))
        return fn(*args, **kwargs)
    return inner
def add(a,b=0):
    return a + b
print(id(add))
add = counter(add)
print(id(add))
add(1,1)
add(2,2)


print('decorator sample2')
def counter(fn):
    count = 0
    
    def inner(*args, **kwargs):
        nonlocal count
        count += 1
        print('Function {0} was called {1} times'.format(fn.__name__,count))
        return fn(*args, **kwargs)
    return inner
def add(a,b=0):
    return a + b
print(id(add))
add(1,1)
add(2,2)