将相对 URL 路径解析为其绝对路径

是的，有 urlparse.urljoin，或者说是 Python 3的 urllib.parse.urljoin。

>>> try: from urlparse import urljoin # Python2
... except ImportError: from urllib.parse import urljoin # Python3
...
>>> urljoin("http://www.asite.com/folder/currentpage.html", "anotherpage.html")
'http://www.asite.com/folder/anotherpage.html'
>>> urljoin("http://www.asite.com/folder/currentpage.html", "folder2/anotherpage.html")
'http://www.asite.com/folder/folder2/anotherpage.html'
>>> urljoin("http://www.asite.com/folder/currentpage.html", "/folder3/anotherpage.html")
'http://www.asite.com/folder3/anotherpage.html'
>>> urljoin("http://www.asite.com/folder/currentpage.html", "../finalpage.html")
'http://www.asite.com/finalpage.html'

复制和粘贴:

try:
from urlparse import urljoin  # Python2
except ImportError:
from urllib.parse import urljoin  # Python3

您还可以通过 Python 的 requests库调用 urljoin函数。

这个代码:

import requests


requests.compat.urljoin('http://example.com/foo.html', 'bar.html')

将返回一个值 http://example.com/bar.html