[Python-Dev] Raising string exceptions

[Neal Norwitz]

Should the error message when raising an invalid exception:

   "exceptions must be strings, classes or instances"

in ceval.c:2743 be changed to remove strings, since this is
deprecated?

Also, should we add a PendingDeprecationWarning when raising a 
string exception? I suspect a DeprecationWarning is too much for 2.3.

Neal