Python 3:

urllib parse。引用+(字符串，安全= "，编码= no, errors= no)

为了在需要同时支持python 2和3的脚本/程序中使用，six模块提供了quote和urlencode函数:

>>> from six.moves.urllib.parse import urlencode, quote
>>> data = {'some': 'query', 'for': 'encoding'}
>>> urlencode(data)
'some=query&for=encoding'
>>> url = '/some/url/with spaces and %;!<>&'
>>> quote(url)
'/some/url/with%20spaces%20and%20%25%3B%21%3C%3E%26'

另一件可能还没有提到的事情是urllib.urlencode()将字典中的空值编码为字符串None，而不是将该形参作为不存在的参数。我不知道这是否是通常需要的，但不适合我的用例，因此我必须使用quote_plus。

供以后参考(例如:For python3)

>>> import urllib.request as req
>>> query = 'eventName=theEvent&eventDescription=testDesc'
>>> req.pathname2url(query)
>>> 'eventName%3DtheEvent%26eventDescription%3DtestDesc'

Python 3:

urllib parse。引用+(字符串，安全= "，编码= no, errors= no)

如果你不想使用urllib。

https://github.com/wayne931121/Python_URL_Decode

#保留字元的百分號編碼
URL_RFC_3986 = {
"!": "%21", "#": "%23", "$": "%24", "&": "%26", "'": "%27", "(": "%28", ")": "%29", "*": "%2A", "+": "%2B", 
",": "%2C", "/": "%2F", ":": "%3A", ";": "%3B", "=": "%3D", "?": "%3F", "@": "%40", "[": "%5B", "]": "%5D",
}

def url_encoder(b):
    # https://zh.wikipedia.org/wiki/%E7%99%BE%E5%88%86%E5%8F%B7%E7%BC%96%E7%A0%81
    if type(b)==bytes:
        b = b.decode(encoding="utf-8") #byte can't insert many utf8 charaters
    result = bytearray() #bytearray: rw, bytes: read-only
    for i in b:
        if i in URL_RFC_3986:
            for j in URL_RFC_3986[i]:
                result.append(ord(j))
            continue
        i = bytes(i, encoding="utf-8")
        if len(i)==1:
            result.append(ord(i))
        else:
            for c in i:
                c = hex(c)[2:].upper()
                result.append(ord("%"))
                result.append(ord(c[0:1]))
                result.append(ord(c[1:2]))
    result = result.decode(encoding="ascii")
    return result

#print(url_encoder("我好棒==%%0.0:)")) ==> '%E6%88%91%E5%A5%BD%E6%A3%92%3D%3D%%0.0%3A%29'