Setting up a subdirectory for week 12 in-class work

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cd into your cs21/class/ subdirectory and create a new directory named 'week12', then cd into that directory:

$ cd cs21/class                     # cd into your cs21/class subdirectory
$ pwd	          
  /home/your_user_name/cs21/class

$ mkdir week12                      # make a subdirectory named week12   
$ cd week12                         # cd into it
$ pwd           
  /home/your_user_name/cs21/class/week12

Now copy over all the files from my public/cs21/week12 directory into your
week12 directory (remember to add the dot as the destination of the cp command).
From your week12 directory:
$ cp ~newhall/public/cs21/week12/* .

For Thursday copy over new versions of two of these files (and enter y to cp's overwrite quesition):

$ cp ~newhall/public/cs21/week12/atm.py .
  cp: overwrite './atm.py'? y

$ cp ~newhall/public/cs21/week12/account.py .
  cp: overwrite './account.py'? y

# to grab a copy of the in-class code from Tuesday:
$ cp ~newhall/public/cs21/week12/tias_recursion.py .

Weekly In-class Examples

This week we are going to:

• Write and trace through some more recursive functions.
• Write some recursive graphics programs.
• Defining our own class
• Write a program that create objects of our class type.

str and list documentation