让人耳目一新的Python类

docopt

Github: https://github.com/docopt/docopt

Pythonic的命令行参数解析库::

"""Usage:  quick_example.py tcp <host> <port> [--timeout=<seconds>]  quick_example.py serial <port> [--baud=9600] [--timeout=<seconds>]  quick_example.py -h | --help | --version"""from docopt import docoptif __name__ == '__main__':    arguments = docopt(__doc__, version='0.1.1rc')    print(arguments)

requests

Github: https://github.com/kennethreitz/requests

大神kennethreitz的作品，简易明了的HTTP请求操作库, 是urllib2的理想替代品

API简洁明了，这才是Python开发者喜欢的::

>>> r = requests.get('https://api.github.com/user', auth=('user', 'pass'))>>> r.status_code200>>> r.headers['content-type']'application/json; charset=utf8'>>> r.encoding'utf-8'>>> r.textu'{"type":"User"...'>>> r.json(){u'private_gists': 419, u'total_private_repos': 77, ...}

sh

http://amoffat.github.io/sh/

如其名，子进程接口。

::

from sh import ifconfigprint(ifconfig("wlan0"))

purl

github: https://github.com/codeinthehole/purl

拥有简洁接口的URL处理器::

>>> from purl import URL>>> from_str = URL('https://www.google.com/search?q=testing')>>> u.query_param('q')u'testing'>>> u.host()u'www.google.com'

path.py

github: https://github.com/jaraco/path.py

一个文件系统处理库，不过目前还在开发阶段

::

from path import pathd = path('/home/guido/bin')for f in d.files('*.py'):f.chmod(0755)

Peewee

https://github.com/coleifer/peewee

小型ORM, 接口很漂亮::

# get tweets by editors ("<<" maps to IN)Tweet.select().where(Tweet.user << editors)# how many active users are there?User.select().where(User.active == True).count()

类似的我的 CURD.py (https://github.com/hit9/CURD.py) 🙂 ::

User.create(name="John", email="John@gmail.com")  # createUser.at(2).update(email="John@github.com")  # updateJohn = User.where(name="John").select().fetchone()  # read# who wrote posts?for post, user in (Post & User).select().fetchall():    print "Author: %s, PostName: %s" % (user.name, post.name)

schema

https://github.com/halst/schema

同样是docopt的作者编写的，一个数据格式检查库，非常新颖::

>>> from schema import Schema>>> Schema(int).validate(123)123>>> Schema(int).validate('123')Traceback (most recent call last):...SchemaError: '123' should be instance of <type 'int'>

fn.py

https://github.com/kachayev/fn.py

增强Python的函数式编程::

from fn import _print (_ + 2) # "(x1) => (x1 + 2)"print (_ + _ * _) # "(x1, x2, x3) => (x1 + (x2 * x3))"

when.py

https://github.com/dirn/When.py

友好的时间日期库::

>>> import when>>> when.timezone()'Asia/Shanghai'>>> when.today()datetime.date(2013, 5, 14)>>> when.tomorrow()datetime.date(2013, 5, 15)>>> when.now()datetime.datetime(2013, 5, 14, 21, 2, 23, 78838)

clize

https://github.com/epsy/clize

用 docopt 写程序的使用doc是不是很爽，clize是一个类似的库。可以用程序的函数名字来作为使用方法

::

#!/usr/bin/env pythonfrom clize import clize@clizedef echo(text, reverse=false):    if reverse:        text = text[::-1]    print(text)if __name__ == '__main__':    import sys    echo(*sys.argv)

而这个小程序就可以这么使用::

$ ./echo.py --helpUsage: ./echo.py [OPTIONS] textPositional arguments:  textOptions:  --reverse  -h, --help   Show this help

Pocoo小组

pocoo出的库，必属精品。 http://www.pocoo.org/

它的库很出名: flask, jinja2, pygments,sphinx

摘自：https://pyzh.readthedocs.org/en/latest/awesome-python-libraries.html