Add traceback data to error response when exceptions are raised

jsonrpc/manager.py

@@ -1,3 +1,5 @@
+import sys
+import traceback
 import json
 import logging
 from .utils import is_invalid_params
@@ -113,6 +115,9 @@ def response(**kwargs):
                         "type": e.__class__.__name__,
                         "args": e.args,
                         "message": str(e),
+                        "traceback": ''.join(
+                            traceback.format_exception(*sys.exc_info())
+                        ),
                     }
                     if isinstance(e, TypeError) and is_invalid_params(
                             method, *request.args, **request.kwargs):

jsonrpc/tests/test_backend_django/tests.py

@@ -2,8 +2,13 @@
 from __future__ import absolute_import
 import os
 
-from django.core.urlresolvers import RegexURLPattern
-from django.test import TestCase
+try:
+    from django.core.urlresolvers import RegexURLPattern
+    from django.test import TestCase
+except ImportError:
+    import unittest
+    raise unittest.SkipTest('Django not found for testing')
+
 from ...backend.django import JSONRPCAPI, api
 import json
 

jsonrpc/tests/test_backend_flask/tests.py

@@ -7,9 +7,13 @@
 else:
     import unittest
 
-# Flask is supported only for python2 and pyton3.3+
+# Flask is supported only for python2 and python3.3+
 if sys.version_info < (3, 0) or sys.version_info >= (3, 3):
-    from flask import Flask
+    try:
+        from flask import Flask
+    except ImportError:
+        raise unittest.SkipTest('Flask not found for testing')
+
     from ...backend.flask import JSONRPCAPI, api
 
     @api.dispatcher.add_method

jsonrpc/tests/test_manager.py

@@ -1,3 +1,4 @@
+import os
 import sys
 if sys.version_info < (2, 7):
     import unittest2 as unittest
@@ -122,11 +123,11 @@ def test_server_error(self):
         self.assertTrue(isinstance(response, JSONRPC20Response))
         self.assertEqual(response.error["message"], "Server error")
         self.assertEqual(response.error["code"], -32000)
-        self.assertEqual(response.error["data"], {
-            "type": "KeyError",
-            "args": ('error_explanation',),
-            "message": "'error_explanation'",
-        })
+        self.assertEqual(response.error["data"]['type'], "KeyError")
+        self.assertEqual(response.error["data"]['args'], ('error_explanation',))
+        self.assertEqual(response.error["data"]['message'], "'error_explanation'")
+        self.assertIn('traceback', response.error["data"])
+        self.assertIn(os.path.basename(__file__), response.error["data"]['traceback'])
 
     def test_notification_calls_method(self):
         request = JSONRPC20Request("long_time_method", is_notification=True)
@@ -155,11 +156,11 @@ def test_type_error_inside_method(self):
         self.assertTrue(isinstance(response, JSONRPC20Response))
         self.assertEqual(response.error["message"], "Server error")
         self.assertEqual(response.error["code"], -32000)
-        self.assertEqual(response.error["data"], {
-            "type": "TypeError",
-            "args": ('TypeError inside method',),
-            "message": 'TypeError inside method',
-        })
+        self.assertEqual(response.error["data"]['type'], "TypeError")
+        self.assertEqual(response.error["data"]['args'], ('TypeError inside method',))
+        self.assertEqual(response.error["data"]['message'], 'TypeError inside method')
+        self.assertIn('traceback', response.error["data"])
+        self.assertIn(os.path.basename(__file__), response.error["data"]['traceback'])
 
     def test_invalid_params_before_dispatcher_error(self):
         request = JSONRPC20Request(