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| Date | Tue, 26 Jul 2011 11:08:38 -0700 |
| From | Ethan Furman <ethan@stoneleaf.us> |
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| To | Neil Cerutti <neilc@norwich.edu> |
| Subject | Re: Is this overuse a context manager? |
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Neil Cerutti wrote: > I use them all the time now, even when the resource being managed > is used for just one line, and never need be assigned an explicit > name. Is it good style, or annoying? > > with open(in_fname, newline='') as in_file: > folk = list(csv.DictReader(in_file)) > > The obvious alternative is: > > folk = list(csv.DictReader(open(in_fname, newline=''))) I can see that it might take some getting used to, but I suspect the context managers are the better style: it clearly denotes the lifespan of the managed object, and provides for resource clean-up. (I know, files are already automatically cleaned up -- at least in cpython; but not every managed object will be a file.) ~Ethan~
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Is this overuse a context manager? Neil Cerutti <neilc@norwich.edu> - 2011-07-26 13:24 +0000 Re: Is this overuse a context manager? Ethan Furman <ethan@stoneleaf.us> - 2011-07-26 11:08 -0700 Re: Is this overuse a context manager? Terry Reedy <tjreedy@udel.edu> - 2011-07-26 14:05 -0400
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