Ask user for colour1 and ask user for colour2 (as strings). Then print the result of mixing these two colours.

colour.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

##
## @file        colour.py
## @brief       Sample Code
## @author      Keitetsu
## @date        2019/02/18
## @copyright   Copyright (c) 2019 Keitetsu
## @par         License
##              This software is released under the MIT License.
##


if __name__ == "__main__":
    """
    Ask user for colour1 and ask user for colour2 (as strings).
    Then print the result of mixing these two colours as follows:
    """

    # Python 2で実行する場合は，raw_input()に置き換えてください．
    colour1 = input("Colour1: ")
    colour2 = input("Colour2: ")

    if ((colour1 == "blue") and (colour2 == "yellow")
        or (colour1 == "yellow") and (colour2 == "blue")):
        print("Result Colour: green")
    elif ((colour1 == "blue") and (colour2 == "red")
        or (colour1 == "red") and (colour2 == "blue")):
        print("Result Colour: purple")
    elif ((colour1 == "red") and (colour2 == "yellow")
        or (colour1 == "yellow") and (colour2 == "red")):
        print("Result Colour: orange")
    else:
        print("Result Colour: unknown")