If you have not already done so, create a week09 subdirectory in your cs21/class directory:

      % cd 
      % cd cs21/class
      % pwd
        /home/your_user_name/cs21/class

      % mkdir week09

Then, from within your week09 subdirectory copy over some python files from my public directory:

    % cd week09
    % pwd
      /home/your_user_name/cs21/class/week09

    % cp ~newhall/public/cs21/week09/* .
    % ls

binarysearch.py is the implementation of binary searching algorithm that we did in class on Monday.
we are going to add a function, selectionSort, that takes a list of values and sorts them using the selection sort algorithm:
- step 1: find bucket with the smallest value in the list, swap its value with the value in bucket 0
- step 2: find the next smallest value in the list, swap it with bucket 1
- step 3: find the next smallest value in the list, swap it with bucket 2
- ...
- last step: the last bucket contains the largest value