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| From | Paul Rubin <no.email@nospam.invalid> |
| Newsgroups | comp.lang.python |
| Subject | Re: What behavior would you expect? |
| Date | Thu, 19 Feb 2015 22:18:10 -0800 |
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Dan Sommers <dan@tombstonezero.net> writes: > I'd still prefer an exception to None, and we agree on that an empty > string is bad because it's not a non-string and it could be too easily > mistaken for a filename. Empty string would be bad. Sometimes I like to simulate an option type, by returning the value as a 1-element list if there's a value, otherwise as an empty list. So you could say filename = get_filename(...)[0] if you want an exception in the failure case, or you could do something like fs = get_filename(...) if len(fs) == 0: ... # didn't get a filename
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What behavior would you expect? Jason Friedman <jsf80238@gmail.com> - 2015-02-18 21:44 -0700
Re: What behavior would you expect? Denis McMahon <denismfmcmahon@gmail.com> - 2015-02-19 14:16 +0000
Re: What behavior would you expect? Chris Angelico <rosuav@gmail.com> - 2015-02-20 02:08 +1100
Re: What behavior would you expect? Denis McMahon <denismfmcmahon@gmail.com> - 2015-02-19 20:03 +0000
Re: What behavior would you expect? Chris Angelico <rosuav@gmail.com> - 2015-02-20 07:11 +1100
Re: What behavior would you expect? Dan Sommers <dan@tombstonezero.net> - 2015-02-20 04:54 +0000
Re: What behavior would you expect? Chris Angelico <rosuav@gmail.com> - 2015-02-20 16:16 +1100
Re: What behavior would you expect? Dan Sommers <dan@tombstonezero.net> - 2015-02-20 05:40 +0000
Re: What behavior would you expect? Jason Friedman <jsf80238@gmail.com> - 2015-02-19 22:49 -0700
Re: What behavior would you expect? Paul Rubin <no.email@nospam.invalid> - 2015-02-19 22:18 -0800
Re: What behavior would you expect? Chris Angelico <rosuav@gmail.com> - 2015-02-20 17:21 +1100
Re: What behavior would you expect? Paul Rubin <no.email@nospam.invalid> - 2015-02-19 23:18 -0800
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