Python Notes

Docs:

• Latest: docs.python.org
• Old release http://docs.python.org/release/2.2.1/lib/module-cgi.html

ghetto command line argv

#!/usr/bin/python

import sys

print 'Number of arguments:', len(sys.argv), 'arguments.'
print 'Argument List:', str(sys.argv)

what's in that object?

https://download.tuxfamily.org/jeremyblog/diveintopython-5.4/py/apihelper.py

/apihelper.py

/apihelper.py - short

then use it like this:

#!/usr/bin/env python

from apihelper import info

mything

info(mything)

AutoVivification

import pprint

class Vividict(dict):
    def __missing__(self, key):
        value = self[key] = type(self)()
        return value

d = Vividict()

d['foo']['bar']
d['foo']['baz']
d['fizz']['buzz']
d['primary']['secondary']['tertiary']['quaternary']
pprint.pprint(d)

vim tabs

# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4

parse json

python -m json.tool my_json.json

parse yaml

python -c "from yaml import load, Loader; load(open('filename.yml'), Loader=Loader)"