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Groups > comp.lang.python > #17306
| Newsgroups | comp.lang.python |
|---|---|
| Date | 2011-12-15 11:01 -0800 |
| References | <9393353.282.1323967703697.JavaMail.geo-discussion-forums@vbyc2> <4EEA35F8.4090502@tim.thechases.com> <4EEA3A47.5020106@stoneleaf.us> <mailman.3690.1323975113.27778.python-list@python.org> |
| Subject | Re: How to generate "a, b, c, and d"? |
| From | Roy Smith <roy@panix.com> |
| Message-ID | <mailman.3691.1323975683.27778.python-list@python.org> (permalink) |
FWIW, I ended up with:
n = len(names)
if n == 0:
return ''
if n == 1:
return names[0]
pre = ', '.join(names[:-1])
post = names[-1]
return '%s, and %s' (pre, post)
the slice-and-join() takes care of both the 2 and >2 element cases at the same time :)
It would be nice if there were some standard way to do this. I'm sure I've seen something that was essentially a join() that took two delimiters; one for most elements, the other a special-case for the last one. I can't remember where I saw it. I'm guessing in some web framework.
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How to generate "a, b, c, and d"? Roy Smith <roy@panix.com> - 2011-12-15 08:48 -0800
Re: How to generate "a, b, c, and d"? MRAB <python@mrabarnett.plus.com> - 2011-12-15 17:27 +0000
Re: How to generate "a, b, c, and d"? Tim Chase <python.list@tim.thechases.com> - 2011-12-15 12:01 -0600
Re: How to generate "a, b, c, and d"? Ethan Furman <ethan@stoneleaf.us> - 2011-12-15 10:19 -0800
Re: How to generate "a, b, c, and d"? Tim Chase <python.list@tim.thechases.com> - 2011-12-15 12:51 -0600
Re: How to generate "a, b, c, and d"? Roy Smith <roy@panix.com> - 2011-12-15 11:01 -0800
Re: How to generate "a, b, c, and d"? Roy Smith <roy@panix.com> - 2011-12-15 11:01 -0800
Re: How to generate "a, b, c, and d"? MRAB <python@mrabarnett.plus.com> - 2011-12-15 19:27 +0000
Re: How to generate "a, b, c, and d"? Ian Kelly <ian.g.kelly@gmail.com> - 2011-12-15 14:22 -0700
Re: How to generate "a, b, c, and d"? Terry Reedy <tjreedy@udel.edu> - 2011-12-15 19:57 -0500
Re: How to generate "a, b, c, and d"? Chris Angelico <rosuav@gmail.com> - 2011-12-16 13:42 +1100
Re: How to generate "a, b, c, and d"? Terry Reedy <tjreedy@udel.edu> - 2011-12-16 00:26 -0500
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