fixed doaction response

Tea/core.py

@@ -4,6 +4,7 @@
 from requests import Request, Session
 from Tea.exceptions import TeaException
 from urllib.parse import urlencode
+from Tea.response import TeaResponse
 
 
 def compose_url(request):
@@ -52,7 +53,7 @@ def do_action(request, runtime_option={}):
         resp = s.send(prepped, proxies=proxies,
                       timeout=(connect_timeout, read_timeout),
                       allow_redirects=False, cert=None)
-        return resp
+        return TeaResponse(resp)
 
 
 def get_response_body(resp):

Tea/response.py

@@ -1,7 +1,7 @@
 class TeaResponse:
     def __init__(self, response):
         self.status_code = response.status_code
-        self.status_message = response.status_description
+        self.status_message = response.reason
         self.headers = response.headers
         self.response = response
         self.body = response.content