I.e. the following will not work as expected
error='MyError'
try:
....
raise error
except 'MyError':
....
The string in the raise and except should be the same instance.
-- Jack Jansen | If I can't dance I don't want to be part of Jack.Jansen@cwi.nl | your revolution -- Emma Goldman uunet!cwi.nl!jack G=Jack;S=Jansen;O=cwi;PRMD=surf;ADMD=400net;C=nl