对于Python 3 urllib3正常工作，您可以根据其官方文档使用以下方法:

import urllib3

http = urllib3.PoolManager()
response = http.request(
     'GET',
     'https://api.prylabs.net/eth/v1alpha1/beacon/attestations',
     fields={  # here fields are the query params
          'epoch': 1234,
          'pageSize': pageSize 
      } 
 )
response = attestations.data.decode('UTF-8')

你需要将你的参数传递给urlencode()作为一个映射(dict)，或者一个2元组序列，比如:

>>> import urllib
>>> f = { 'eventName' : 'myEvent', 'eventDescription' : 'cool event'}
>>> urllib.urlencode(f)
'eventName=myEvent&eventDescription=cool+event'

Python 3或以上

使用urllib.parse.urlencode:

>>> urllib.parse.urlencode(f)
eventName=myEvent&eventDescription=cool+event

注意，这不是通常意义上的url编码(看看输出)。为此请使用urllib.parse.quote_plus。

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'

import urllib.parse
query = 'Hellö Wörld@Python'
urllib.parse.quote(query) // returns Hell%C3%B6%20W%C3%B6rld%40Python

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'

如果urllib.parse. parse。urlencode()给你错误，然后尝试urllib3模块。

语法如下:

import urllib3
urllib3.request.urlencode({"user" : "john" })