codewars/courses/python_func/closure.py

from datetime import datetime
from time import perf_counter, sleep


def multiply(value):
    def inner(x):
        return value*x
    return inner


def make_repeater(n):
    def inner(str):
        return(str*n)
    return inner

'''
def create_accumulator():
    s = 0
    def inner(x):
        nonlocal s
        s += x
        return s
    return inner
'''
    

def create_accumulator(start_value=0):
    s = start_value
    def inner(x):
        nonlocal s
        s += x
        return s
    return inner


def countdown(x):
    counter = start = x
    def inner():
        nonlocal counter
        if counter <= 0:
            print(f"Превышен лимит, вы вызвали более {start} раз")
        else:
            print(counter)
        counter -= 1      
    return inner


def count_calls():
    counter = 0
    def inner():
        inner.total_calls += 1
        return inner.total_calls
    setattr(inner, 'total_calls', 0)
    return inner


def counter(func):
    '''Выводит имя и количество вызовов функции'''
    count = 0
    def inner(*args, **kwargs):
        nonlocal count
        count += 1
        print(f'Функция {func.__name__} вызывалась {count} раз')
        return func(*args, **kwargs)
    return inner


def timer():
    '''Сколько времени прошло с момента создания замыкания'''
    start = perf_counter()
    def inner():
        return perf_counter() - start
    return inner


def create_dict():
    key = 1
    dct = {}
    def inner(value):
        nonlocal key
        dct[key] = value
        key += 1
        return dct
    return inner



def my_func(a):
    def inner(x):
        return x - a
    return inner


def main():

    f_1 = create_dict()
    print(f_1('privet'))
    print(f_1('poka'))
    print(f_1([5, 2, 3]))

    f2 = create_dict()
    print(f2(5))
    print(f2(15))

    # x = my_func(10)
    # print(x(5))

    # f_2 = multiply(2)
    # print(f_2(5))
    # print(f_2(15))

    # repeat_2 = make_repeater(2)
    # print(repeat_2('Pizza'))
    # print(repeat_2('Pasta'))

    # summator_1 = create_accumulator()
    # print(summator_1(1)) # печатает 1
    # print(summator_1(5)) # печатает 6
    # print(summator_1(2)) # печатает 8

    # summator_2 = create_accumulator()
    # print(summator_2(3)) # печатает 3
    # print(summator_2(4)) # печатает 7

    # summator_1 = create_accumulator(100)
    # print(summator_1(1)) # печатает 101
    # print(summator_1(5)) # печатает 106
    # print(summator_1(2)) # печатает 108

    # counter = count_calls()
    # counter()
    # counter()
    # print(counter.total_calls)
    # counter()
    # print(counter.total_calls)


if __name__ == '__main__':
    main()