7-rectangle.py

#!/usr/bin/python3
"""Class Rectangle that defines a rectangle based on 6-rectangle.py"""


class Rectangle:
    """Class Rectangle

    Attributes:
        number_of_instances (int): Public class attribute
        print_symbol: Holds symbol used to print rectangle
    """
    number_of_instances = 0
    print_symbol = "#"

    def __init__(self, width=0, height=0):
        """Initializes attributes

        Args:
        width (int): width of the rectangle
        height (int): height of the rectangle
        """
        self.width = width
        self.height = height
        Rectangle.number_of_instances += 1

    @property
    def width(self):
        """Set the width, check input and raise errors"""
        return self.__width

    @width.setter
    def width(self, value):
        if type(value) != int:
            raise TypeError("width must be an integer")
        if value < 0:
            raise ValueError("width must be >= 0")
        self.__width = value

    @property
    def height(self):
        """Set the height, check input and raise errors"""
        return self.__height

    @height.setter
    def height(self, value):
        if type(value) != int:
            raise TypeError("height must be an integer")
        if value < 0:
            raise ValueError("height must be >= 0")
        self.__height = value

    def area(self):
        """Method calculates the area of a rectangle"""
        return self.__width * self.__height

    def perimeter(self):
        """Method calculates perimeter of rectangle"""
        if self.__width == 0 or self.__height == 0:
            return 0
        else:
            return (2 * (self.__height + self.__width))

    def __str__(self):
        """prints rectangle using '#'"""
        string = ""
        if self.__width == 0 or self.__height == 0:
            return string
        for i in range(self.__height):
            for j in range(self.__width):
                string += str(self.print_symbol)
            if i != self.__height - 1:
                string += '\n'
        return string

    def __repr__(self):
        """Returns string representation of rectangle"""
        return ("Rectangle(" + str(self.__width) +
                ", " + str(self.__height) + ")")

    def __del__(self):
        """prints message when an instance of Rectangle is deleted"""
        print("Bye rectangle...")
        Rectangle.number_of_instances -= 1