more slides for session 7
pep8 fixes
pep8 fixes
more slides and some in-class exercises.
more slides and homework
files from session 7
finalize slides for session 7
add session 7 code
Merge branch 'master' of github.com:codefellows/sea-c15-python
Merge branch 'master' of https://github.com/codefellows/sea-c15-python