Use "raise E, V, T" instead of "raise E(V).with_traceback(T)" (with_traceback is not available in Python 2).

Author: ezio-melotti

CHANGES.txt

@@ -11,6 +11,9 @@ Features:
 
 Fixed:
 
+- "BaseException.with_traceback" is not available on Python 2, so use
+  "raise E, V, T" instead of "raise E(V).with_traceback(T)".  This change was
+  originally introduced in 74476eaac38a. (Ezio Melotti)
 - issue2550759: Trailing punctuation is no longer included when URLs are
   converted to links. (Ezio Melotti)
 - issue2550574: Restore sample detectors removed in roundup 1.4.9

roundup/cgi/client.py

@@ -1114,7 +1114,7 @@ def renderContext(self):
                 # receive an error message, and the adminstrator will
                 # receive a traceback, albeit with less information
                 # than the one we tried to generate above.
-                raise exc_info[0](exc_info[1]).with_traceback(exc_info[2])
+                raise exc_info[0], exc_info[1], exc_info[2]
 
     # these are the actions that are available
     actions = (