Attribute accessible dicts and collections thereof
Easily get clean data, direct from text or Python source
Decorator indicating a method is both a class and an instance method
Null values and sentinels like (but not) None, False & True
Memoizing metaclass. Drop-dead simple way to create cached objects
Sets of integers like 1,3-7,33
print and format on steroids
copy/paste for Mac OS X for rich text (HTML/RTF) rather than plain text
Use with to simplify multi-level object dereferences, reminisent of Pascal's with statement
textwrap, but savvy to ANSI colors and styles
textwrap from Python 3.6 backport (plus a few tweaks)
ANSI colors for Python
Named (and numeric) HTML entities to/from each other or Unicode
Simpler, cleaner access to regular expressions. Globs too.
En passant assignment for clearer conditionals
Simple, super-flexible options. Does magic upon request.
Powerful way to construct text, HTML, and XML, plus a kick-ass join
Debug print statements, done right. E.g. show(x)
A different take on web serving
Backport/clone of ChainMap for py26, py32, and pypy3.
Attributes-accessible mappings chainstuf (like ChainMap) & counterstuf (like Counter)
Simple, beautiful logging from Flask web apps to FireBug console
The next-generation for loop and work tracker
Python-Markdown extension using smartypants to emit typographically nicer ("curly") quotes, proper ("em" and "en") dashes, etc.
Intensional sets in Python