几天前在逛Github时发现huacnlee大神用Ruby写的Gem：ip-location。刚好我从未在PyPI上发布过模组，可以借此机会做一个Python语言的Port学习下如何发布到PyPi。
模组的介绍是这样的：
ipgeo is a python module inspired by another ruby gem huacnlee/ip-location.
The pypi page of ipgeo is https://pypi.python.org/pypi/ipgeo .
ipgeo is used to retrieve geo info for ip address via taobao ip service(http://ip.taobao.com) .
The Limitation of ipgeo is the query frequency should be less than 10 per second (http://ip.taobao.com/restrictions.php).
For more information, please visit ipgeo's github page (https://github.com/caiski/ipgeo) .
首先说明此模组是由huacnlee的ip-location启发而来，内部实现逻辑也完全一样，只是语言不同。实现非常简单，有兴趣的同学可到这个Repository查看源码。
该模组是通过淘宝IP地址服务实现，因此要受淘宝IP地址服务的QPS限制。
要编写符合PyPI要求的模组工程，还需要写好setup.py这个文件，感觉就像是为这个模组编写Meta信息。
from distutils.core import setup
setup(
name = 'ipgeo',
packages = ['ipgeo'],
version = '0.2.3',
description = 'Geo info retriver for ipv4 address using chinese taobao service',
author = 'Ai Chao',
author_email = 'aichaoguy@live.com',
url = 'https://github.com/aichaoguy/ipgeo',
download_url = 'https://github.com/aichaoguy/ipgeo/tarball/0.2.3',
keywords = ['ip', 'geo', 'taobao'],
classifiers = [
"Programming Language :: Python",
"Programming Language :: Python :: 2.6",
"Programming Language :: Python :: 2.7",
"Programming Language :: Python :: 3",
"Environment :: Other Environment",
"Operating System :: OS Independent",
"Topic :: Software Development :: Libraries :: Python Modules",
],
)
各种本地工作完成后，便是打包和上传了。在.pypirc中设置号自己PyPI的账号密码后，使用Python自带的工具可以轻松完成。
python setup.py dist upload 后续版本更新时，要对setup.py文件中version、download_url等选项的同步更新。
一个简单的意义甚微的PyPI模组就这样诞生了。