Create a week11 subdirectory in your cs21/class directory and copy over some starting point files:
$ cd $ cd cs21/class $ pwd /home/your_user_name/cs21/class $ mkdir week11 $ cd week11 $ pwd /home/your_user_name/cs21/class/week11 $ cp ~turnbull/public/cs21/week11/* .
As you implement each method, test it by adding calls to main. Try calls that will test different method return values. For example, if a method returns True or False, try one call that should return True, another that should return False.
We can sort a set of objects (e.g., bank accounts) in a list. This makes it easy to iterate through a large amount of data.
In python, a 2-dimensional matrix of data is represented as a "list of lists".