Using Python!!! preferred python 3.5. please post screenshots and code.

You will be writing a "shell'' applicationm, it will be on a loop, taking in commands from the user. The command syntax is as follows: command Karga> arg1> Karg n The commands you are to implement: Command Description Prints all arguments on the same line, with a space between each. echo Treats all arguments as floating-point numbers, and prints the average. MUST print an error if given invalid arguments. average Finds the index of arg1 in argo. If there are not at least 2 args, print out an erro strstr Reads a text file containing 0 or more of Commands treating it exactly as if it was coming in from standard input script Example run: (User input is prefixed by CIN] )(Output is prefixed by [OUT] CINJ echo Hello, World OUT Hello World CINJ average ape OUT ERROR usage average