* make sure to check your grades on BB!!!
* hw3 due Thursday.
  * note on the problem to trace variables - have a list of all the values the 
    variables had, including the first assignment to the variable (read the 
    instructions in the comments!).
  * note on the problems to trace variables - do not change the code.  You can 
    put print statements in, but you should not change what the values of the 
    variables are.
* note: first exam will be October 6.
* what major do you want?  Let's look at the CS major...
  * also look at CS minor...

* Today: more of for loops, strings, functions.  And ... introducing lists!

* Goal 1: function called getNumber that has three arguments, one specifying a 
  lower range and one a max, and one specifying a message to display for asking
  them.  The function should do a raw_input, check that what
  they gave you is a number.  If it was not, ask them again.  When they enter a 
  number, convert it to a number and return it.  If they type quit, then return 1 
  less than the lower range.

* Goal 2: put that into one of our examples from earlier - e.g., number guessing
  game.

* And now, introducing lists ...
  - range
  - []
  - slices with : just like for strings
  - dir([]) shows you functions you can use - count, append
  - lists are mutable - can change them
  
* For Hangman, we'll need...
  - choose a random word from a list of words
  - keep the answer in a string
  - loop doing the following...
  - ask the user for a letter (and make sure they entered a letter)
  - look for the letter in the answer and put it in anywhere (and ignore case)
  - if that letter not in the answer, then add something to the hangman
    + for now, we'll just keep a counter of their wrong answers and only let 
      them have so many.
  - also could make sure they did not guess that letter before - keep a list of 
    letters they are still allowed to guess.
  - if no more blanks left, they win!