Change in python test, grader and request handler

- Add try except in grader to get exceptions for python stdio and python assertion evaluation
- Add additional tests
- Add condition in request handler to avoid error if codemirror is not instantiated

1 files changed, 4 insertions, 1 deletions

diff --git a/yaksh/grader.py b/yaksh/grader.py
index 9bc4e5c..2a246b8 100644
--- a/yaksh/grader.py
+++ b/yaksh/grader.py
@@ -151,7 +151,10 @@ class Grader(object):
         except Exception as e:
             exc_type, exc_value, exc_tb = sys.exc_info()
             tb_list = traceback.format_exception(exc_type, exc_value, exc_tb)
-            line_no = e.lineno
+            try:
+                line_no = e.lineno
+            except AttributeError:
+                line_no = traceback.extract_tb(exc_tb)[-1][1]
             if len(tb_list) > 2:
                 del tb_list[1:3]
             error.append(