added humor and energy to the lists section
Add moar sets
Adds details for install on Mac OS X
Changes minor typos and adds links to python docs for random
fixed omission of word to
changed inside-out to reversed for-loop
minor grammatical change
added statement describing first list comprehension example, squared_numbers
add reference to Danny's lecture on lists
reference same names in Danny's list to keep example consistent between Parts 2 & 4
minor typo add double-quote
Edits introduction and welcome
demo vowel_names result of for-loop example
clarify that dictionary keys are unique
use list comprehension instead of for-loop to keep consistent with the previous topic
Adds introduction and thank you of our sponsors, volunteers, etc.
demo result of joining the translated words from the list comprehension
use list comprehension in translate function instead of a for-loop
reverted change in translate function example due to extra credit
edit grammar in sets