#7 rowmapping 2

[Anonymous]

you need this too

def __nonzero__(self):
if self._fields:
return True
return False

[David S. Rushby]

Logged In: YES
user_id=414645

This feature request seems uncontroversial, so I'll add it
in version 3.2 unless anyone can think of a compelling
reason not to.

I would probably implement it like this, though:
---------------------------
def __nonzero__(self):
return bool(self._fields)
---------------------------

[David S. Rushby]

Logged In: YES
user_id=414645

I was about to implement this, but the Python documentation
entry for __nonzero__ says:
"""
Called to implement truth value testing, and the built-in
operation bool(); should return False or True, or their
integer equivalents 0 or 1.

When this method is not defined, __len__() is called, if it
is defined (see below). If a class defines neither __len__()
nor __nonzero__(), all its instances are considered true.
"""

kinterbasdb._RowMapping already defines __len__, so there's
no need to define __nonzero__ also.