Detailed introduction to network programming

Python has built-in libraries that encapsulate many common network protocols, so python has become a powerful network programming tool. Here is a brief description of python's network programming.

urllib and urllib2 modules

urllib and urllib2 are the most powerful network working libraries in the Python standard library. Here is a brief introduction to the urllib module. This time we mainly use several commonly used modules in the urllib module:

urlopen
parse
urlencode
quote
unquote
_safe_quoters
unquote_plus

GET request:

Use urllib to make a get request of the http protocol and obtain Return value of the interface:

 urllib.request = res =(res.decode())

POST request:

 urllib.request  urllib.parse = data =: : : param =res ==(type(res_str), res_str)

Note: When using urllib to request the post interface, in the above example, post The request parameter type of the interface is in key-value format, and parameters in json format are not applicable.

Quote module

Escapes special characters when the requested URL contains special characters.

 urllib.parse = new_url =(new_url)

Unquote module

Performs parsing operations on escaped special characters.

 urllib.parse = new_url =(, unquote_plus(url4))

The above is a brief introduction to urllib. When processing the interface, please also refer to the requests module~~~

<br>

The above is the detailed content of Detailed introduction to network programming. For more information, please follow other related articles on the PHP Chinese website!