如何检查URL是Python中的网页链接还是文件链接

如何检查URL是Python中的网页链接还是文件链接

import urllibimport mimetypesdef guess_type_of(link, strict=True):    link_type, _ = mimetypes.guess_type(link)    if link_type is None and strict:        u = urllib.urlopen(link)        link_type = u.headers.gettype() # or using: u.info().gettype()    return link_type

演示：

links = ['http://stackoverflow.com/q/21515098/538284', # It's a html page         'http://upload.wikimedia.org/wikipedia/meta/6/6d/Wikipedia_wordmark_1x.png', # It's a png file         'http://commons.wikimedia.org/wiki/File:Typing_example.ogv', # It's a html page         'http://upload.wikimedia.org/wikipedia/commons/e/e6/Typing_example.ogv'   # It's an ogv file]for link in links:    print(guess_type_of(link))

输出：

text/htmlimage/x-pngtext/htmlapplication/ogg