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Learning python/django

In my quest to learn how to use python within the django framework, the most difficult thing was the development environment, and getting to the point where I could play learn, practice and experiment. Here are some steps that I took to get to that point.

I’ll add to this as I can, but mostly I’m using it as a handy resource that I can access while continuing to learn.

SETUP DJANGO PROJECT IN MY MAC OS DEV ENV

Cribbed from my notes and this blog post.

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# You will need to run these with superuser permissions.
# Either prefix `sudo` to all commands, or switch user

# Be very careful when you switch user
sudo su - root

# Update all the packages
yum update

# Install the basics - python27, gcc, svn, git, httpd, make, uuid

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Launch Sublime Text 2 from the Mac OS X Terminal

Sublime Text 2 ships with a CLI called subl (why not "sublime", go figure). This utility is hidden in the following folder (assuming you installed Sublime in /Applications like normal folk. If this following line opens Sublime Text for you, then bingo, you're ready.

open /Applications/Sublime\ Text\ 2.app/Contents/SharedSupport/bin/subl

You can find more (official) details about subl here: http://www.sublimetext.com/docs/2/osx_command_line.html

Installation

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#########################
# .gitignore file for Xcode5
#
# NB: if you are storing "built" products, this WILL NOT WORK,
#   and you should use a different .gitignore (or none at all)
# This file is for SOURCE projects, where there are many extra
#   files that we want to exclude
#
# For updates, see: http://stackoverflow.com/questions/49478/git-ignore-file-for-xcode-projects
#   and https://gist.github.com/adamgit/3786883

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import socket, ssl, json, struct
import binascii

# device token returned when the iPhone application
# registers to receive alerts
deviceToken = '39cac56f 986a0e66 3c4fd4f4 68df5598 024d2ca3 8b9f307c 741c180e 9fc30c62'

thePayLoad = {
     'aps': {
          'alert':'Oh no! Server\'s Down!',

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#!/usr/bin/env python
"""
Very simple HTTP server in python.

Usage::
    ./dummy-web-server.py [<port>]

Send a GET request::
    curl http://localhost

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# Basics of Elliptic Curve Cryptography implementation on Python
import collections


def inv(n, q):
    """div on PN modulo a/b mod q as a * inv(b, q) mod q
    >>> assert n * inv(n, q) % q == 1
    """
    for i in range(q):
        if (n * i) % q == 1:

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location @webserver {
        if ($request_method = 'OPTIONS') {

                add_header 'Access-Control-Allow-Origin' '*';
                add_header 'Access-Control-Allow-Credentials' 'true';
                add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
                add_header 'Access-Control-Allow-Headers' 'Authorization,DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
                add_header 'Access-Control-Max-Age' 1728000;
                add_header 'Content-Type' 'text/plain charset=UTF-8';
                add_header 'Content-Length' 0;

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