python 流行库、库的基本用法

进入github，输入python 点击see topic 进入python流行的库链接 https://github.com/topics/python

1、QuantLib 金融衍生品数据库

2、schedule定时任务 https://github.com/dbader/schedule

3、Tenacity。Python重试从此无比简单 https://github.com/jd/tenacity/releases?after=v1.2.2

4、yagmail 发邮件的库 https://github.com/kootenpv/yagmail

5、Tornado web server Tornadois a Python web framework andasynchronous networking library, originally developed atFriendFeed. By using non-blocking network I/O, Tornadocan scale to tens of thousands of open connections, making it ideal forlong polling,WebSockets, and otherapplications that require a long-lived connection to each user.

tornado是一个Python Web框架的异步网络库，最初是在FriendFeed。通过使用非阻塞的网络I/O，tornadocan规模对打开的连接数以万计，使其成为理想的长轮询，WebSockets，和其他应用程序需要一个长连接到每个用户。 https://github.com/tornadoweb/tornado

6、

库的使用

3、defaultdict库：python中defaultdict方法的使用

https://blog.csdn.net/real_ray/article/details/17919289

2、abc模块以后有需要再学习

资料：http://blog.csdn.net/taiyangdao/article/details/78199623

https://docs.python.org/3/library/abc.html

http://blog.csdn.net/grey_csdn/article/details/77110667

http://blog.csdn.net/qijiqiguai/article/details/77269839

1、Munch库

import munch

b=Munch()

Traceback (most recent call last):

  File "D:\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 2862, in run_code

    exec(code_obj, self.user_global_ns, self.user_ns)

  File "<ipython-input-7-fa393e434470>", line 1, in <module>

    b=Munch()

NameError: name 'Munch' is not defined

from munch import *

b=Munch()

b.hello='world'

b['hello']

Out[11]: 'world'

b['hello']+='!'

b.hello

Out[13]: 'world!'

b.foo=Munch(lol=True)

b.foo.lol

Out[15]: True

b.foo is b['foo']

Out[16]: True

b

Out[17]: Munch({'hello': 'world!', 'foo': Munch({'lol': True})})

b['yang']='qie'

b

Out[19]: Munch({'hello': 'world!', 'foo': Munch({'lol': True}), 'yang': 'qie'})

b.keys()

Out[20]: dict_keys(['hello', 'foo', 'yang'])

b.update({'ponies':'are pretty!'},hello=43)

b

Out[22]: Munch({'hello': 43, 'foo': Munch({'lol': True}), 'yang': 'qie', 'ponies': 'are pretty!'})

[(k,b[k]) for k in b]

Out[23]:

[('hello', 43),

 ('foo', Munch({'lol': True})),

 ('yang', 'qie'),

 ('ponies', 'are pretty!')]

'The {knights} who say {ni}'.format(**Munch(knights='lolcats',ni='can haz'))

Out[24]: 'The lolcats who say can haz'

b=Munch(foo=Munch(lol=True),hello=42,ponies='are pretty!')

b

Out[26]: Munch({'foo': Munch({'lol': True}), 'hello': 42, 'ponies': 'are pretty!'})

import json

json.dumps(b)

Out[28]: '{"foo": {"lol": true}, "hello": 42, "ponies": "are pretty!"}'

undefined=object()

b=DefaultMunch(undefined,{'hello':'world'})

b

Out[32]: DefaultMunch(<object object at 0x00000167253C5430>, {'hello': 'world'})

b()

Traceback (most recent call last):

  File "D:\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 2862, in run_code

    exec(code_obj, self.user_global_ns, self.user_ns)

  File "<ipython-input-33-9c619ddbd09b>", line 1, in <module>

    b()

TypeError: 'DefaultMunch' object is not callable

b.hello

Out[34]: 'world'

b.foo

Out[35]: <object at 0x167253c5430>

b.foo()

Traceback (most recent call last):

  File "D:\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 2862, in run_code

    exec(code_obj, self.user_global_ns, self.user_ns)

  File "<ipython-input-36-e1521d9f21b2>", line 1, in <module>

    b.foo()

TypeError: 'object' object is not callable

b.foo is undefined

Out[37]: True

undefined=object()

b=DefaultMunch.fromDict({'recursively':{'nested':'value'}},undefined)

b.recursively

Out[40]: DefaultMunch(<object object at 0x00000167253C5420>, {'nested': 'value'})

b.recursively.nested

Out[41]: 'value'

b.recursively.foo

Out[42]: <object at 0x167253c5420>

巴特西

python 流行库、库的基本用法

3、defaultdict库：python中defaultdict方法的使用

2、abc模块以后有需要再学习

1、Munch库

最新文章

热门文章

巴特西

python 流行库、库的基本用法

3、defaultdict库：python中defaultdict方法的使用

2、abc模块 以后有需要再学习

1、Munch库

最新文章

热门文章

2、abc模块以后有需要再学习