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Use .ssh/config file to connect to github

Preparations:

You'd better have prepared following materials:
* A pair of public/private keys, say id_rsa_gitlover & id_rsa_gitlover.pub
If you don't have yet, here's the instruction you can refer to:  
https://help.github.com/articles/generating-ssh-keys

* A github account, say [email protected]

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// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

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pass arguments in django template 

<form action="{% url 'polls:vote' question.id %}" method="post">

How does url receives arguments in the template?

https://docs.djangoproject.com/en/dev/intro/tutorial03/

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polls/templates/polls/detail.html

<h1>{{ question.question_text }}</h1>

{% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %}

<form action="{% url 'polls:vote' question.id %}" method="post">
{% csrf_token %}
{% for choice in question.choice_set.all %}
    <input type="radio" name="choice" id="choice{{ forloop.counter }}" value="{{ choice.id }}" />

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#!/bin/bash

curl ipecho.net/plain ; echo

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openvpn configure notes:

Follow the process on debian wiki: https://wiki.debian.org/OpenVPN
The process is almost OK. Only a few adjustments is required as below:

checking:
$ which openvpn

The default directory after installation is: /etc/openvpn/
All relative path in .conf files points to this path.

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anypackage/
    __init__.py
    xxx.py     # class WWW is originally defined in this xxx file.

generally speaking, python can only import class from modules, which is usually a .py file.

import WWW from xxx

But, we can also import class from a package(folder) directly, rather than from the module. This is where an __init__.py file can step onto the stage.

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get python dependency graph

install snake food

sudo apt-get install snakefood

http://furius.ca/snakefood/

install graphviz

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# grep letters|whitespace|number
# http://www.robelle.com/smugbook/regexpr.html 

ps -elf | grep '[a-zA-Z]\{1,\}\s*2502'

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#!/usr/bin/python

# Demo code. Decode base64 content from a string or a readable file
# Works for Python 2.7.3, at least 

# Usage
# decodebase64.py base64string
# decodebase64.py /absolute/path/to/base64/file

import sys