bl4ck5un

#!/usr/bin/python
class simple_tracer_as_cls:

    def __init__(self, func):
        self.calls = 0
        self.func = func

    def __call__(self, *args, **kargs):
        self.calls += 1
        print('call %s to %s' % (self.calls, self.func.__name__))

bl4ck5un

#!/usr/share/python
class ListInstance:
    def __str__(self):
        return '<Instance of %s, address %s:\n%s>' % (
                self.__class__.__name__,
                id(self),
                self.__attrnames())

    def __attrnames(self):
        result = ''

bl4ck5un

%!TEX TS-program = xelatex
%!TEX encoding = UTF-8 Unicode

\documentclass[12pt]{article}
\usepackage[adobefonts]{ctex} 
\usepackage{graphicx}
\usepackage{amssymb}
\usepackage{amsmath}

\begin{document}

bl4ck5un

#!/bin/bash

ipv4_addr=`ifconfig eth0 | grep 'inet addr' | cut -d :  -f 2 | cut -d ' ' -f 1`
ipv6_base='2402:f000:1:1501'
ip tunnel add sit1 mode sit remote  166.111.21.1 local ${ipv4_addr}
ifconfig sit1 up
ifconfig sit1 add ${ipv6_base}::${ipv4_addr}/64
ip -6 route add ::/0 via ${ipv6_base}::1 metric 1 dev sit1

bl4ck5un

\usepackage{graphicx}

\begin{figure}[p]
    \centering
    \includegraphics[width=0.8\textwidth]{image.png}
    \caption{Awesome Image}
    \label{fig:awesome_image}
\end{figure}

bl4ck5un

# x = ...
# y = ...
idx = np.random.choice(np.arange(len(x)), 1000, replace=False)
x_sample = x[idx]
y_sample = y[idx]
"""
a : 1-D array-like or int
If an ndarray, a random sample is generated from its elements. If an int, the random sample is generated as if a was np.arange(n)
size : int or tuple of ints, optional
Output shape. If the given shape is, e.g., (m, n, k), then m * n * k samples are drawn. Default is None, in which case a single value is returned.

bl4ck5un

\usepackage{tgpagella} % text only
\usepackage{mathpazo}  % math & text

bl4ck5un

wget https://aur.archlinux.org/cgit/aur.git/snapshot/package-query.tar.gz
tar xfz package-query.tar.gz
cd package-query  &&  makepkg  -rsi 

wget https://aur.archlinux.org/cgit/aur.git/snapshot/yaourt.tar.gz
tar xfz yaourt.tar.gz
cd yaourt && makepkg -rsi

bl4ck5un

ffmpeg -i input.mp4 -c:v copy -c:a mp3 output.mp4

bl4ck5un

# from http://stackoverflow.com/a/7427376/1616210

parser = argparse.ArgumentParser(description='Description of your program')
parser.add_argument('-f','--foo', help='Description for foo argument', required=True)
parser.add_argument('-b','--bar', help='Description for bar argument', required=True)
args = vars(parser.parse_args())

if args['foo'] == 'Hello':
    # code here
if args['bar'] == 'World':