擅长:python、mysql、java
<p>使用<a href="https://docs.python.org/2/library/urlparse.html" rel="nofollow noreferrer">^{<cd1>}</a>获取URL的域(以及子域):</p>
<pre><code>from urlparse import urlparse
def netloc_parse(url):
if not url.startswith('http'):
url = '//' + url
return urlparse(url).netloc
print [(netloc_parse(i[0]), i[1]) for i in my_list]
</code></pre>
<p>它的输出将是:</p>
^{pr2}$
<p>感谢<a href="https://stackoverflow.com/u/5284595">@Dexter</a>给了<a href="https://stackoverflow.com/questions/42339332/changing-first-value-of-a-tuple-inside-a-tuple-list/42339463#comment71831081_42339463">suggestion</a>。在</p>