On Fri, Mar 14, 2014 at 3:01 PM, Chris Withers <ch...@simplistix.co.uk>wrote:
> On 03/12/2014 04:49 PM, Chris Angelico wrote: >> >>> You can use hasattr() in place of AttributeError >>> >> > Is that true now? It used to be that hasattr swallowed all exceptions > rather than just AttributeError making is a very dangerous weapon for > anything (such as an orm or odb) that might do something interesting when > you try and get an attribute from it. > Changed in Python 3.2: http://docs.python.org/3.2/whatsnew/3.2.html > > On 12/03/2014 21:37, Tres Seaver wrote: > >> I use: >> >> getattr(subject, attrname, default)? >> >> *all the time*. >> > > On this one, did anything ever come of making getattr have a default > default of None? No. If you want None returned as the default you still need to specify that to allow for those APIs where the attribute can have a value of None but you still want it to raise an AttributeError if the attribute isn't there. -Brett > > > Chris > > -- > Simplistix - Content Management, Batch Processing & Python Consulting > - http://www.simplistix.co.uk > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > https://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: https://mail.python.org/mailman/options/python-dev/ > brett%40python.org >
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