id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc	distribution	status_field
1609	sugar.datastore.datastore.find(): async mode broken	sascha_silbe	erikos	"{{{sugar.datastore.datastore.find()}}} leads the API consumer into believing it supports asynchronous operation by offering the reply_handler and error_handler parameters, but it breaks if those are used:

{{{
>>> sugar.datastore.datastore.find({'foo': 'bar'}, reply_handler=cb, error_handler=cb)
Traceback (most recent call last):
  File ""<stdin>"", line 1, in <module>
  File ""/home/sascha.silbe/sugar-jhbuild/install/lib/python2.5/site-packages/sugar/datastore/datastore.py"", line 277, in find
    reply_handler, error_handler)
TypeError: 'NoneType' object is not iterable
>>> 
}}}

This has been fixed during my data store access refactorings (#1197), but since those have not been merged it's still broken.
How should we go forward on it? Three options come to my mind:

1. Merge #1197 / #1198 (we're now more early in the release cycle).
2. Backport this single change from #1197.
3. Remove {{{reply_handler}}} and {{{error_handler}}} parameters to indicate asynchronous operation isn't supported.


I'm marking this Blocker instead of just Major because I noticed it when I wanted to use asynchronous mode from within an activity.

"	defect	new	Unspecified by Maintainer	Unspecified by Release Team	sugar-toolkit	Git as of bugdate	Blocker				Unspecified	New