Create a Perimeter() method to calculate the perimeter of the rectangle and

Sure, here is a simple method to calculate the perimeter of a rectangle in Python:

class Rectangle:
    def __init__(self, length, width):
        self.length = length
        self.width = width

    def Perimeter(self):
        return 2 * (self.length + self.width)

In this code:

1. We define a class Rectangle which will represent our rectangle.
2. The __init__ method is a special method that is automatically called when a new object is created from the class. It is used to initialize the attributes of the class. In this case, we are initializing the length and width of the rectangle.
3. We then define a method Perimeter which calculates the perimeter of the rectangle. The formula for the perimeter of a rectangle is 2 * (length + width). This method returns the calculated perimeter.

You can use this class and method like this:

# create a rectangle with length 5 and width 4
rect = Rectangle(5, 4)

# print the perimeter of the rectangle
print(rect.Perimeter())

This will output 18, which is the perimeter of the rectangle.