issue #477: Logger.log(extra=) unsupported on Py2.4.

mitogen/master.py

@@ -346,11 +346,21 @@ class LogForwarder(object):
             self._cache[msg.src_id] = logger = logging.getLogger(name)
 
         name, level_s, s = msg.data.decode('latin1').split('\x00', 2)
-        logger.log(int(level_s), '%s: %s', name, s, extra={
-            'mitogen_message': s,
-            'mitogen_context': self._router.context_by_id(msg.src_id),
-            'mitogen_name': name,
-        })
+
+        # See logging.Handler.makeRecord()
+        record = logging.LogRecord(
+            name=logger.name,
+            level=int(level_s),
+            pathname='(unknown file)',
+            lineno=0,
+            msg=('%s: %s' % (name, s)),
+            args=(),
+            exc_info=None,
+        )
+        record.mitogen_message = s
+        record.mitogen_context = self._router.context_by_id(msg.src_id)
+        record.mitogen_name = name
+        logger.handle(record)
 
     def __repr__(self):
         return 'LogForwarder(%r)' % (self._router,)