JohnSpeno

John Speno's Python Style Guide

If you don't use it, you are dead to me.

• Avoid long lines and do not use a backslash for line continuation. Figure it out. Look at some of these examples for help:

zone_sums = dict(
    one_free=Sum('ports__one_gig_available'),
 one_total=Sum('ports__one_gig_total'),

JohnSpeno

import rlcompleter
import atexit
import os
import readline
import sys
from pydoc import help

# Make TAB complete stuff
readline.parse_and_bind("tab: complete")

JohnSpeno

# Leader key should be the same as screen (C-a)
set -g prefix C-a

# Double tap to go to previous window
bind C-a last-window

# Splitting windows should use | and -
unbind %
bind | split-window -h
bind - split-window -v

JohnSpeno

Upgrade Django from 1.1 to 1.5.1. This highlights some of the issues that one may encounter when updating Django. It's not possible to cover every case, but this should provide a good general starting point.

Change to DATABASES variable in settings.py.

Django now supports multiple databases and changes are needed to how the database connections are defined.

• Changed in Django 1.2
• Change Required by Django 1.4
• Source:

JohnSpeno

#!/bin/sh
#
# gunicorn_sr        Startup script for gunicorn for sr
#
# chkconfig: - 86 14
# processname: gunicorn
# pidfile: 
# description: Python application server
#
### BEGIN INIT INFO

JohnSpeno

shell -$SHELL
startup_message off
defscrollback 8192

bind j focus down
bind k focus up
bind t focus top
bind b focus bottom
bind W windowlist

JohnSpeno

#!/bin/sh

# Some things taken from here
# https://github.com/mathiasbynens/dotfiles/blob/master/.osx

# Set the colours you can use
black='\033[0;30m'
white='\033[0;37m'
red='\033[0;31m'
green='\033[0;32m'

JohnSpeno

class PeekIter:
     """ Create an iterator which allows you to peek() at the
         next item to be yielded. It also stores the exception
         and re-raises it on the next next() call.
     """
     def __init__(self, iterable):
         self._exn = None
         self._it = iter(iterable)
         self._peek = next(self._it)

JohnSpeno

create type numeric_quartiles_plus as (
    min float,
    q05 float,
    q10 float,
    q25 float,
    q50 float,
    q75 float,
    q90 float,
    q95 float,
    max float,

JohnSpeno

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import argparse

if __name__ == '__main__':

    parser = argparse.ArgumentParser(description="""
        I never freaking remember argparse syntax and the docs are so all over the place
        that I need this for an example.