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class Borg:
    __shared_state = {}
    
    def __new__(cls, *args, **kwargs):
        instance = super().__new__(cls, *args, **kwargs)
        instance.__dict__ = cls.__shared_state
        return instance

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import threading


# Based on tornado.ioloop.IOLoop.instance() approach.
# See https://github.com/facebook/tornado
class SingletonMixin(object):
	__singleton_lock = threading.Lock()
	__singleton_instance = None

	@classmethod

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#!/bin/bash

SCRIPT_DIR=`readlink -f $(dirname $0)`
CONFNAME=git.conf
CFG_FILE=${SCRIPT_DIR}/${CONFNAME}

# 默认配置
DIR=/tmp/boss/publish

# 加载自定义配置

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# Public Domain, i.e. feel free to copy/paste
# Considered a hack in Python 2

import inspect

def caller_name(skip=2):
    """Get a name of a caller in the format module.class.method
    
       `skip` specifies how many levels of stack to skip while getting caller
       name. skip=1 means "who calls me", skip=2 "who calls my caller" etc.

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Transforming Code into Beautiful, Idiomatic Python

Notes from Raymond Hettinger's talk at pycon US 2013 video, slides.

The code examples and direct quotes are all from Raymond's talk. I've reproduced them here for my own edification and the hopes that others will find them as handy as I have!

Looping over a range of numbers

for i in [0, 1, 2, 3, 4, 5]:

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[alias]
tree = log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold                 blue)<%an>%Creset' --abbrev-commit

[color]
  diff = auto
  status = auto
  branch = auto
  interactive = auto
  ui = true
  pager = true

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# To unbundle, sh this file
echo Makefile 1>&2
sed 's/.//' >Makefile <<'//GO.SYSIN DD Makefile'
-C=edgelist.c geometry.c heap.c main.c memory.c output.c voronoi.c 
-O=edgelist.o geometry.o heap.o main.o memory.o output.o voronoi.o
-
-tt: voronoi t
-	voronoi -t <t >tt
-voronoi: $O
-	cc -o voronoi $O -lm

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# post_commit and post_rollback transaction signals for Django with monkey patching
# Author Grégoire Cachet <gregoire.cachet@gmail.com>
# http://gist.github.com/247844
# 
# Usage:
# You have to make sure to load this before you use signals.
# For example, create utils/__init__.py and then utils/transaction.py contening 
# this gist in you project. Then add "import utils.transaction" in your project
# __init__.py file
# 

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#!/bin/sh
#
# nginx - this script starts and stops the nginx daemin
#
# chkconfig:   - 85 15 
# description:  Nginx is an HTTP(S) server, HTTP(S) reverse \
#               proxy and IMAP/POP3 proxy server
# processname: nginx
# config:      /usr/local/nginx/conf/nginx.conf
# pidfile:     /usr/local/nginx/logs/nginx.pid

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#! /bin/bash
#   
# memcached:    MemCached Daemon   
#   
# chkconfig:    - 90 25  
# description:  MemCached Daemon   
#   
### BEGIN INIT INFO
# Provides:          memcached
# Required-Start:    $syslog