On Thursday 08 January 2009 17:05:01 Michael Bayer wrote: > oh, right. > > what is the hash of a rowproxy exactly ? its mostly like a dict > or a list, neither of which is hashable. no idea. the db_id?
instead of None, better do some empty method raising some error, because in the current way the error comes up in not at all obvious fashion, takes quite some head-scratching to find-out - there's no mentioning of anything set() related there. > the __hash__=<you must be > explicit> thing in py3k is a great idea. i dont know, i had other similar non-obvious things around (the multitide of) set()-required methods, seems the protocol is not clearly cut like dict or list ones. maybe in py3k it will... > On Jan 8, 2009, at 4:17 AM, a...@svilendobrev.com wrote: > > On Thursday 08 January 2009 03:50:15 Michael Bayer wrote: > >> versus 0.5rc4 ? i didnt think we changed any of that. > > > > the breaking change is rev5492, the __hash__= None in RowProxy, > > seems like py3k preparations. > > rc4 is what, 5296? have not tried it explicitly. > > > > commenting that hash= makes it work. > > i just happened to have such code. > > a (failing) test is attached. > > > > svilen > > > >> On Jan 7, 2009, at 7:04 PM, a...@svilendobrev.com wrote: > >>> i've upgraded and found this: > >>> ... > >>> q = session.execute( sometable.select() ) > >>> r = set( q ) > >>> TypeError: 'NoneType' object is not callable > >>> > >>> it took me 10 mins of trials to guess ... > >>> the RowProxy does not behave well for set() of it; this is ok > >>> r = set( tuple(x) for x in q ) > >>> > >>> i guess something about __len__ or __nonzero__ or __iter__ or > >>> ... is it that new __hash__ = None ? > >>> > >>> svil > > > > <rowproxy-set.py> > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
