Include timezone in ISO dates, test

Author: curusarn

logtail/frame.py

@@ -1,14 +1,14 @@
 # coding: utf-8
 from __future__ import print_function, unicode_literals
-from datetime import datetime
+from datetime import datetime, timezone
 
 from os import path
 import __main__
 
 def create_frame(record, message, context, include_extra_attributes=False):
     r = record.__dict__
     frame = {}
-    frame['dt'] = datetime.utcfromtimestamp(r['created']).isoformat()
+    frame['dt'] = datetime.utcfromtimestamp(r['created']).replace(tzinfo=timezone.utc).isoformat()
     frame['level'] = level = _levelname(r['levelname'])
     frame['severity'] = int(r['levelno'] / 10)
     frame['message'] = message

tests/test_frame.py

@@ -12,6 +12,8 @@ def test_create_frame_happy_path(self):
         log_record = logging.LogRecord("logtail-test", 20, "/some/path", 10, "Some log message", [], None)
         frame = create_frame(log_record, log_record.getMessage(), LogtailContext())
         self.assertTrue(frame['level'] == 'info')
+        # ISO timestamp must end with timezone info
+        self.assertTrue(frame['dt'].endswith("+00:00"))
 
     def test_create_frame_with_extra(self):
         handler = LogtailHandler(source_token="some-source-token")