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[Python-Dev] Criticism of execfile() removal in Python3
Chris Barkerchris.barker at noaa.gov
Mon Jun 16 19:40:03 CEST 2014
On Sat, Jun 14, 2014 at 1:11 PM, Paul Sokolovsky <pmiscml at gmail.com> wrote:> > > 1. It hampers interactive mode - instead of short and easy to type> > > execfile("file.py") one needs to use exec(open("file.py").read()).>> > If the amount of typing is the problem, that's easy to solve:> >> > # do this once> > def execfile(name):> > exec(open("file.py").read())>FWIW, when I started using python (15?) years ago -- the first thing Ilooked for was a way to "just run a file", at the interactive prompt, likeI had in MATLAB. I found and used execfile().However, it wasn't long before I discovered that excecfile() was reallykind of a pain, you've got namespaces, and all sorts of stuff that made itoften not work like I wanted, and was a pain to type. I stopped using itall togetherMore recently, I discovered iPython and its "run" function -- very nice, itdoes the obvious stuff for you the way you'd expect.My conclusions:1) runfile() is not really very usefull, it's fine to hve removed it.2) the built-in interactive python interpreter is really pretty lame. Ifyou want a good interactive experience, you need something more anyway(iPython, for instance) -- putting execfile() back is only one tinyimprovement that's not worth it.So if this is about micropython -- I think it would serve the project verywell to have a micropython-specific interactive mode. iPython is fabulous,but though I imagine too heavy weight. But perhaps you could borrow somethings from it -- like "run" , for example.-Chris-- Christopher Barker, Ph.D.OceanographerEmergency Response DivisionNOAA/NOS/OR&R (206) 526-6959 voice7600 Sand Point Way NE (206) 526-6329 faxSeattle, WA 98115 (206) 526-6317 main receptionChris.Barker at noaa.gov-------------- next part --------------An HTML attachment was scrubbed...URL: <http://mail.python.org/pipermail/python-dev/attachments/20140616/2e0d06e0/attachment.html>
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