5/1/2014 Matthew Cahn [email protected]
Importing your module with
if __name__ == '__main__'
Documenting with doc strings so you can use
help()
Command line parsing with optparse (if you're using an older version of Python) (Python < 2.7).
pyversion.py
Command line parsing.
commandline1.py -- Using sys.argv directly -- BAD
commandline2.py -- argparse (Python 2.7 or newer) -- define your options with code
commandline3.py -- docopt (add-on module) -- define your options with documentation
Interleave two or more lists.
zip.py
Produce a counter while iterating.
enumerate.py
The built-in set type -- unions, intersections, etc.
sets.py -- (Python >= 2.6)
List, dictionary, and set comprehensions -- a concise way to create these objects.
comprehensions.py -- (Python >= 3.0.0 for list, dictionary and set comprehensions)
(Python >= 2.0.0 -- list comprehensions only)
The dictionary setdefault method -- set the default value for a key, or return the current value.
The doctest module -- test a module according to the doc string.
Everything in Python is a reference.
dictsAndDoctest.py
The Counter object in the collections module -- a customized dictionary for counting things.
counter.py -- (Python >= 2.7)
Function argument passing -- positional, keyword, and variable number of arguments.
arguments.py -- (Any Python version, but >= 3.0.0 for this particular example)
The logging module -- send messages to the screen, files, email, etc.
loggingDemo.py
loggingDemo.conf
Documentation:
The Global Module index: docs.python.org
The Python Cookbook: http://code.activestate.com/recipes/langs/python/
docopt.org -- For the docopt module.