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导语: 本文主要介绍了关于如何查看python文档的相关知识,包括怎么查看python的库,以及python列表这些编程知识,希望对大家有参考作用。

如何查看python文档

调用帮助函数以查看函数或方法的字符串文档。

In [1]: import requests
In [2]: help(requests.get)
Help on function get in module requests.api:
get(url, params=None, **kwargs)
    Sends a GET request.
    :param url: URL for the new :class:`Request` object.
    :param params: (optional) Dictionary or bytes to be sent in the query string for the :class:`
    Request`.
    :param \*\*kwargs: Optional arguments that ``request`` takes.
    :return: :class:`Response <Response>` object
    :rtype: requests.Response


使用dir可以查看模块或对象都有哪些方法。

In [3]: dir(requests)
Out[3]:
['ConnectionError',
 'HTTPError',
 'compat',
 'cookies',
 'delete',
 'exceptions',
 'get',
 'head',
 'hooks',
  ...


使用ipython+?查看

In [4]: requests.get?
Type:        function
String form: <function get at 0x10e6c35f0>
File:        /Library/Python/2.7/site-packages/requests/api.py
Definition:  requests.get(url, params=None, **kwargs)
Docstring:
Sends a GET request.
:param url: URL for the new :class:`Request` object.
:param params: (optional) Dictionary or bytes to be sent in the query string for the :class:`Request`.
:param \*\*kwargs: Optional arguments that ``request`` takes.
:return: :class:`Response <Response>` object
:rtype: requests.Response


使用pydoc查看字符串文档

python -m pydoc requests
Help on package requests:
NAME
    requests
FILE
    /Library/Python/2.7/site-packages/requests/__init__.py
DESCRIPTION
    requests HTTP library   
    Requests is an HTTP library, written in Python, for human beings. Basic GET
    usage:
       >>> import requests
       >>> r = requests.get('https://www.python.org')
       >>> r.status_code
       200
       >>> 'Python is a programming language' in r.content
       True

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