First Steps in OOP - Lab

# First Steps in OOP - Lab

# https://pastebin.com/u/GeorgiLukanov87

# 01. Rhombus of Stars
# 02. Scope Mess
# 03. Class Book
# 04. Car
# 05. Music


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# 01. Rhombus of Stars


def print_rhombus_func(n):
    for i in range(n):
        print((n - 1 - i) * " " + (i + 1) * '* ')

    for i in range(n - 1):
        print((i+1) * " " + (n-1-i) * "* ")


n = int(input())
print_rhombus_func(n)


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# 02. Scope Mess

x = 'global'


def outer():
    global x
    x = 'local'

    def inner():
        global x
        x = 'nonlocal'
        print('inner:', x)

    def change_global():
        global x
        x = "global: changed!"

    print("outer:", x)
    inner()
    print("outer:", x)
    change_global()


print(x)
outer()
print(x)


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# 03. Class Book


class Book:
    def __init__(self, name, author, pages):
        self.name = name
        self.author = author
        self.pages = pages


# 04. Car

class Car:
    def __init__(self, name, model, engine):
        self.name = name
        self.model = model
        self.engine = engine

    def get_info(self):
        return f'This is {self.name} {self.model} with engine {self.engine}'


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# 05. Music


class Music:
    def __init__(self, title, artist, lyrics):
        self.title = title
        self.artist = artist
        self.lyrics = lyrics

    def print_info(self):
        return f'This is "{self.title}" from "{self.artist}"'

    def play(self):
        return self.lyrics

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