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hodunov/lesson 19.py

Created September 10, 2021 18:07
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  1. hodunov created this gist Sep 10, 2021.
    124 changes: 124 additions & 0 deletions lesson 19.py
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,124 @@
    # map
    import operator
    from functools import reduce

    item = [1, 2, 3, 4]
    squared = []
    for i in item:
    squared.append(i ** 2)


    def square_func(i):
    return i ** 2


    # print(sum([1, 2, 3, 4]))
    # print(list(map(operator.add, [1, 2, 3, 4], [1, 2, 3, 4])))
    # result = list(map(square_func, item))
    # print(result)

    def x_plus_y(x, y):
    return x + y


    volume = reduce(
    lambda x, y: x + y,
    [1, 2, 3, 4]
    )

    # print(volume)
    # print(f"{volume} - sum of digints")
    # print("{volume} - sum of digints".format(volume=volume))
    #


    areas = [3.123456, 3.123456, 3.123456, 3.123456, 3.123456, 3.123456]

    # result = list(map(round, areas, range(1, 5)))
    # print(result)

    # CRUD
    # create, read, update, delete

    # zip

    first_string = ['a', 'b', 'c', 'd']
    second_string = [1, 2, 3]

    zip_value = list(zip(first_string, second_string))


    # print(zip_value)

    # print(list(map(lambda x, y: (x, y), first_string, second_string)))


    def bread(func):
    def wrapper():
    print("BREAD")
    func()
    print("BREAD")

    return wrapper


    def vegetables(func):
    def wrapper():
    print("SALAD")
    func()
    print("TOMATO")

    return wrapper


    @bread
    @vegetables
    def sandwich(food='cheese'):
    print(food)


    # sandwich = bread(vegetables(sandwich))
    # sandwich()


    class MyCustomError(Exception):

    def __init__(self, message):
    self.message = message

    def __str__(self):
    return self.message


    print(MyCustomError("MY ERROR TEXT"))


    def error_catcher(error=None):
    def decorator(func):
    def wrapper(*args, **kwargs):
    try:
    func(*args, **kwargs)
    except error as e:
    with open('errors.txt', 'a') as file:
    file.write(
    f"While running {func.__name__} with arg {args} kwargs {kwargs}"
    f"got an error {e}\n"
    )
    return wrapper
    return decorator


    @error_catcher(error=ZeroDivisionError)
    def zero():
    1/0

    # zero()


    @error_catcher(error=ValueError)
    def converter(type_to_convert=int, value=None):
    return type_to_convert(value)


    converter(value='abc')