Merge pull request #212 from dm-logv/bug211-session-engine

Add exception handling for a session() and restore original engine if it fails

Author: maxtepkeev

redminelib/__init__.py

@@ -76,8 +76,12 @@ def session(self, **options):
         engine = self.engine
         self.engine = engine.__class__(
             requests=utilities.merge_dicts(engine.requests, options.pop('requests', {})), **options)
-        yield self
-        self.engine = engine
+        try:
+            yield self
+        except exceptions.BaseRedmineError as e:
+            raise e
+        finally:
+            self.engine = engine
 
     def upload(self, f):
         """