Python:获取 URL 路径部分 [英] Python: Get URL path sections

问题描述

如何从 url 获取特定的路径部分?例如，我想要一个对此进行操作的函数:

http://www.mydomain.com/hithere?image=2934

并返回到那里"

或对此进行操作:

http://www.mydomain.com/hithere/something/else

并返回相同的东西(到那里")

我知道这可能会使用 urllib 或 urllib2，但我无法从文档中弄清楚如何只获取路径的一部分.

解决方案

使用 urlparse:

<预><代码>>>>导入 urlparse>>>path = urlparse.urlparse('http://www.example.com/hithere/something/else').path>>>小路'/这里/某物/其他'

使用 os.path 将路径拆分为组件.分裂:

<预><代码>>>>导入 os.path>>>os.path.split(路径)('/hithere/something', '其他')

dirname 和 basename 函数为您提供了拆分的两个部分；也许在 while 循环中使用 dirname:

<预><代码>>>>而 os.path.dirname(path) !='/':... path = os.path.dirname(path)...>>>小路'/你好呀'

How do I get specific path sections from a url? For example, I want a function which operates on this:

http://www.mydomain.com/hithere?image=2934

and returns "hithere"

or operates on this:

http://www.mydomain.com/hithere/something/else

and returns the same thing ("hithere")

I know this will probably use urllib or urllib2 but I can't figure out from the docs how to get only a section of the path.

解决方案

Extract the path component of the URL with urlparse:

>>> import urlparse
>>> path = urlparse.urlparse('http://www.example.com/hithere/something/else').path
>>> path
'/hithere/something/else'

Split the path into components with os.path.split:

>>> import os.path
>>> os.path.split(path)
('/hithere/something', 'else')

The dirname and basename functions give you the two pieces of the split; perhaps use dirname in a while loop:

>>> while os.path.dirname(path) != '/':
...     path = os.path.dirname(path)
... 
>>> path
'/hithere'

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