如何在python中将url中的%3A和%2F转换为：和/？

Question

如何转换url中的替换（%3A和%2F…）。
网址 https://url/login_data.php?username=user&categoryid=0&URL=https%3A%2F%2Furl%2F%26TIME%3DFri%2520Aug%252005%25202016%252011%3A40%3A14%2520GMT%2B0530%28India%2520Standard%2520Time%29

必需的URL
https://url/login_data.php?username=user&categoryid=0&URL=https://url/&TIME=Sat Aug 06 2016 11:42:36 GMT+0530 (India Standard Time)

我想知道有什么简单的方法可以做到这一点吗？

Answer 1

在python 2.7中，使用urllib.unquote：

>>> import urllib
>>> urllib.unquote(urllib.unquote('https://url/login_data.php?username=user&categoryid=0&URL=https%3A%2F%2Furl%2F%26TIME%3DFri%2520Aug%252005%25202016%252011%3A40%3A14%2520GMT%2B0530%28India%2520Standard%2520Time%29'))
'https://url/login_data.php?username=user&categoryid=0&URL=https://url/&TIME=Fri Aug 05 2016 11:40:14 GMT+0530(India Standard Time)'

在python 3+中，使用urllib.parse.unquote

>>> from urllib.parse import unquote
>>> unquote(unquote("https://url/login_data.php?username=user&categoryid=0&URL=https%3A%2F%2Furl%2F%26TIME%3DFri%2520Aug%252005%25202016%252011%3A40%3A14%2520GMT%2B0530%28India%2520Standard%2520Time%29"))
'https://url/login_data.php?username=user&categoryid=0&URL=https://url/&TIME=Fri Aug 05 2016 11:40:14 GMT+0530(India Standard Time)'

Answer 2

看一看urllib.parse.unquote：“将%xx转义替换为其等效的单个字符。”