[web2py] Error trying to run db queries from on-line shell

[mwolfe02]

I'm trying to run a very simple select query from the built-in web-
based shell, but I keep getting the following error:  The cursor's
connection has been closed.

Here is the full traceback:

Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "...\web2py\gluon\sql.py", line 3214, in select
    rows = response(query)
  File "...\web2py\gluon\sql.py", line 3209, in response
    db._execute(query)
  File "...\web2py\gluon\sql.py", line 1087, in <lambda>
    self._execute = lambda *a, **b: self._cursor.execute(*a, **b)
ProgrammingError: The cursor's connection has been closed.


What am I doing wrong?  It would be really hand to debug queries
interactively.

Thanks,
Mike