HW6 grading

0 for the assignment if the file does not load at all.

4 points for each problem, 8 points total.

For turtle problem, full points if it is something reasonable.
-.5 for not having mainloop().
-1.5 you really just copied something from what we did in class and didn't
     make hardly any change.
-2 if you really didn't have it do anything...

For the string question,
* Note: the comments said it just needed to be correct on '\\' or '/', so 
  as long as the function is correct on those test cases you are fine.
-1 if returning the \ or / as part of the returned string.
-.5 if only returning correct answer on either \ or / because using 
    os.path.split function.
-2 hard-coded to work only for the particular test cases given in the
   hw assignment.  Note - your function should work for arbitrary inputs
   - that is the whole point of a function!
-3 just returning the divider
-3 something hard-coded, but not even the test cases from the hw file.


Note: mainloop needs to be the /last/ command that is run after all your 
turtle drawing and setup commands are done.