Message11957

I just answered my own question:

Is it possible that ps1 (and ps2) are changed to a string type, losing its attributedeleted type, import sys is run (collecting all the attributes), then changed back to attributedeleted, therefore makingit unavailable when attempts are made to access the attribute that isn't there...

After I posted, I read the rest of InteractiveConsole.java and saw systemstate.ps1 = old_ps1. This should have made it an attributedeleted type again.

Time to debug....