Python中本身带有很多实用的工具，如pydoc。pydoc模块主要用来从Python模块中提取信息并生成文档。

使用方法

在Windows和Linux下的使用方法有些区别。

Windows

python -m pydoc <modulename>

如：

C:\>python -m pydoc module_test 

NB：module_test是自定义的模块，不要添加文件后缀。

Linux

pydoc <modulename>

如：

$ pydoc module_test

pydoc参数

$ pydoc -h

pydoc - the Python documentation tool

pydoc <name> ...

    Show text documentation on something.  <name> may be the name of a

    Python keyword, topic, function, module, or package, or a dotted

    reference to a class or function within a module or module in a

    package.  If <name> contains a '/', it is used as the path to a

    Python source file to document. If name is 'keywords', 'topics',

    or 'modules', a listing of these things is displayed.

pydoc -k <keyword>

    Search for a keyword in the synopsis lines of all available modules.

pydoc -p <port>

    Start an HTTP server on the given port on the local machine.

pydoc -w <name> ...

    Write out the HTML documentation for a module to a file in the current

    directory.  If <name> contains a '/', it is treated as a filename; if

    it names a directory, documentation is written for all the contents.

$ 

无参数 <name>

显示文档，<name>可以是相查询的任何东西。如关键字、函数、模块、包等等。

C:\>python -m pydoc print

Help on built-in function print in module builtins:

print(...)

    print(value, ..., sep=' ', end='\n', file=sys.stdout, flush=False)

    Prints the values to a stream, or to sys.stdout by default.

    Optional keyword arguments:

    file:  a file-like object (stream); defaults to the current sys.stdout.

    sep:   string inserted between values, default a space.

    end:   string appended after the last value, default a newline.

    flush: whether to forcibly flush the stream.

C:\>python -m pydoc random

Help on module random:

NAME

    random - Random variable generators.

DESCRIPTION

        integers

        --------

               uniform within range

        sequences

        ---------

               pick random element

               pick random sample

               generate random permutation

        distributions on the real line:

        ------------------------------

               uniform

               triangular

               normal (Gaussian)

               lognormal

               negative exponential

               gamma

...

参数-k <keyword>

在可用模块中按关键字搜索。

C:\>python -m pydoc -k print

calendar - Calendar printing functions

email.quoprimime - Quoted-printable content transfer encoding per RFCs 2045-2047

.

encodings.quopri_codec - Codec for quoted-printable encoding.

json.tool - Command-line tool to validate and pretty-print JSON

lib2to3.fixes.fix_print - Fixer for print.

pprint - Support to pretty-print lists, tuples, & dictionaries recursively.

pstats - Class for printing reports on profiled python code.

quopri - Conversions to/from quoted-printable transport encoding as per RFC 1521

.

test.test_pprint

test.test_print

traceback - Extract, format and print information about Python stack traces.

参数-p <port>

在当前主机启用HTTP服务，使用指定的端口。

C:\>python -m pydoc -p 53241

Server ready at http://localhost:53241/

Server commands: [b]rowser, [q]uit

server> b

server>

如：

这时可以点击来跟踪链接进行查看相应的文档。

参数-w <name>

生成HTML文档。

首先编写一个模块，此外为class_test.py：

"""

A simple test.

"""

if __name__ == "__main__":

    print("hello")

然后执行如下：

C:\>python -m pydoc -w class_test

wrote class_test.html

此时在C盘根目录下生成了class_test.html文件，就可以在浏览器中进行查看了。

更多请参考Python的pydoc模块。