fix: Handles exceptions raised by request.urlopen in `HttpClient.po…

…st` (#17)

src/amplitude/http_client.py

@@ -2,7 +2,7 @@
 from enum import Enum
 from socket import timeout
 from typing import Optional
-from urllib import request, response
+from urllib import request, response, error
 
 from amplitude import constants
 
@@ -134,4 +134,14 @@ def post(url: str, payload: bytes, header=None) -> Response:
         except timeout:
             result.code = 408
             result.status = HttpStatus.TIMEOUT
+        except error.HTTPError as e:
+            try:
+                result.parse(e)
+            except:
+                result = Response()
+                result.code = e.code
+                result.status = Response.get_status(e.code)
+                result.body = {'error': e.reason}
+        except error.URLError as e:
+            result.body = {'error': str(e.reason)}
         return result

src/amplitude/processor.py

@@ -55,7 +55,7 @@ def process_response(self, res, events):
             self.push_to_storage(events_for_retry_delay, 30000, res)
             self.push_to_storage(events_for_retry, 0, res)
         else:
-            self.callback(events, res.code, "Unknown error")
+            self.callback(events, res.code, res.error or "Unknown error")
 
     def push_to_storage(self, events, delay, res):
         for event in events: