Forwarded with permission. I'm not sure why the thread died back then.
-----Original Message-----
From: Nick Mathewson [mailto:nickm@alum.mit.edu]
Sent: Thursday, March 21, 2002 4:53 PM
To: tim.one@comcast.net
Subject: Re: [Python-Dev] Patch 532638: Better AttributeError formatting
Hello, Tim!
I see on Python-dev that you've written:
> *Someone* has written a "lazy msg exception class" before in the core,
> and it may even have been me. If it wasn't me, pipe up and give Skip a
> nudge in the right direction (OTOH, if it was me, maybe I'll remember
> tomorrow).
I wrote something similar during a case-sensitivity debate in May of 2000.
You can archived threads at:
http://mail.python.org/pipermail/patches/2000-May/thread.html
Relevant threads are:
"From comp.lang.python: A compromise on case-sensitivity"
"Patch: AttributeError and NameError: second attempt"
IIRC, people eventually decided not to include these patches because (a)
cased-base warnings seemed not-worth-it, and (b) they used circular
references, which Python could not at the time garbage-collect.
An interesting factoid: lazy exception messages seemed to increase
AttributeError performance by about 33%.
HTH,
--
Nick <nickm@alum.mit.edu>
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