week_7.txt
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Review unlisted_words exercise
 Careful about types: input, local, return
   String s, list(s) is list of char not strings, s.split(' ') is list of strings (words)
 Types are our theme this evening!
 Return results, don't print them in function body
 Print returned result from caller, not function body

Review atom exercise
 Unique id, could use census class attriute (like in vehicle), I used id
 Bonds: list of objects 

Lecture 1: vector class, motivate bags, next exercise

Lab 1: speakers get set up, others work on lab exercise

Talks: Stefan Coe, Martin Coots, Lotus Lin 

Lecture 2:  Review lab exercise, Generators, Protocols

Lab 2: get started on bag exercise