python不同版本中的urllib的问题！

Question

import base64 import urllib2 class SGovToken(): TIME_OUT = 3600 LAST_UPDATE_TIME = "" TOKEN = '' def __init__(self, *args, **kwargs): pass def get_token_from_sgovernace(self,appid,appkey,url): if not appid or not appkey: return 'ERROE' soap_env = ''' <applicationID>{0}</applicationID> <credential>{1}</credential> ''' appkey = base64.standard_b64decode(appkey) soap_content = soap_env.format(appid,appkey) resquest = urllib2.Request(url,soap_content) resquest.add_header('SOPAACTION','getTokenByAPPCREdential') try: response = urllib2.urlopen(resquest) except HTTPERROR as e: pass if response is not none: resp_content = response.read() return resp_content 现在的代码在python2中可以正常的获取到resp_content....但是在python3中，将urllib2改为urllib.request却是报错的。urllib2.Request的data参数也改为了bytes类型！！！不知道哪里还有问题呢？