Simple Python Patchwork

I need help creating a set of tiles in Python. I need two different designs in a certain layout. The program should begin by prompting the user to enter the size and colour of the patchwork. Valid sizes are 5x5, 7x7 and 9x9, and valid colors are red, green, blue, orange, magenta and [login to view URL] program’s user interface should be friendly and robust; on entering invalid data, the user should be re-prompted until the entered data is valid. Once these details have been entered, the patchwork sample should be drawn in a graphics window of the appropriate size.