Added a few lines about truthiness, how lists can contain arbitrary data types, how you can unpack both tuples and lists, using ange, assigning lambdas to variables, dictionary comprehensions,  modules, and links to more info about the standard library.
Added a few lines about truthiness, how lists can contain arbitrary data types, how you can unpack both tuples and lists, using ange, assigning lambdas to variables, dictionary comprehensions,  modules, and links to more info about the standard library.
Incorporated feedback from lodin/adambard/others

Changes:

- Added a few lines on using "is" to compare object identity.
- Removed example about lists containing arbitrary values.
- Removed example about assigning lambdas to variables.
- Removed example about dictionary comprehensions.
- Removed the additional explanation about 'self'
- Added a clarification on modules.
Incorporated feedback, and pulled in changes from the master trunk.
Merge pull request #60 from Michael0x2a/master

Python: clarified a few lines, added information about modules (issue #21)