Adding session 03 homework, still working on mailroom:wq!
Merge branch 'master' of https://github.com/UWPCE-PythonCert/IntroToPython
add list_lab
removed Vinay from lightning talk
Merge pull request #44 from PrimusPilus/master

Adding session 03 homework, still working on mailroom:wq!
adding mailroom.py
adding revised mailroomfunction.py
Merge pull request #45 from jerrytozhang/master

adding mailroom.py

Merging this now -- could use some clean up, but you clearly get the concepts I wanted you to get. Nice work.
Merge pull request #43 from gosunfish/master

add list_lab 

list_lab looks perfect!
Merge pull request #42 from salimhamed/master

Session 3 Homework

looks good.
Adding Session04 dict_set lab
Merge branch 'master' of https://github.com/UWPCE-PythonCert/IntroToPython
Adding session 03 unfinished_mailroom and session04 safe_input
Merge pull request #46 from PrimusPilus/master

Adding session04 Dict_Set Lab, auto-merging