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Groups > comp.lang.python > #104529
| From | Thomas 'PointedEars' Lahn <PointedEars@web.de> |
|---|---|
| Newsgroups | comp.lang.python |
| Subject | Re: Simple exercise |
| Date | 2016-03-10 17:05 +0100 |
| Organization | PointedEars Software (PES) |
| Message-ID | <4942558.HO6WSNh2JR@PointedEars.de> (permalink) |
| References | <mailman.117.1457600573.15725.python-list@python.org> <15045007.7fdgliee2q@PointedEars.de> |
Thomas 'PointedEars' Lahn wrote:
[
> key = m.group(1)
> value = int(m.group(2))
>
> if key not in od:
> od[key] = value
> else:
> od[key] += value
>
> But there is probably an even more pythonic way to do this.
]
For example, based on the original code:
recs = int(input())
od = OrderedDict()
items = []
for _ in range(recs):
file_input = sys.stdin.readline().strip()
m = re.search(r"(\w.+)\s+(\d+)", file_input)
if m: items.append(m.group(1, 2))
od = OrderedDict(map(lambda item: (item[0], 0), items))
for item in items: od[item[0]] += item[1]
--
PointedEars
Twitter: @PointedEars2
Please do not cc me. / Bitte keine Kopien per E-Mail.
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Simple exercise Rodrick Brown <rodrick.brown@gmail.com> - 2016-03-10 04:02 -0500
Re: Simple exercise Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-03-10 11:30 +0100
Re: Simple exercise Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-03-10 12:07 +0100
Re: Simple exercise Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-03-10 17:05 +0100
Re: Simple exercise Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-03-10 17:08 +0100
Re: Simple exercise Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-03-11 12:24 +1300
Re: Simple exercise Chris Angelico <rosuav@gmail.com> - 2016-03-11 10:38 +1100
Re: Simple exercise BartC <bc@freeuk.com> - 2016-03-11 00:05 +0000
Re: Simple exercise Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-11 01:21 +0000
Re: Simple exercise BartC <bc@freeuk.com> - 2016-03-11 01:45 +0000
Re: Simple exercise Larry Martell <larry.martell@gmail.com> - 2016-03-10 20:53 -0500
Re: Simple exercise "Martin A. Brown" <martin@linux-ip.net> - 2016-03-10 17:56 -0800
Re: Simple exercise Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-11 02:03 +0000
Re: Simple exercise BartC <bc@freeuk.com> - 2016-03-11 02:18 +0000
Re: Simple exercise Rick Johnson <rantingrickjohnson@gmail.com> - 2016-03-14 07:35 -0700
Re: Simple exercise Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2016-03-14 15:06 +0000
Re: Simple exercise Rick Johnson <rantingrickjohnson@gmail.com> - 2016-03-14 09:00 -0700
Re: Simple exercise Steven D'Aprano <steve@pearwood.info> - 2016-03-15 10:59 +1100
Re: Simple exercise Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-03-15 07:26 +0200
Re: Simple exercise Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2016-03-15 19:39 +1100
Re: Simple exercise Chris Angelico <rosuav@gmail.com> - 2016-03-15 19:53 +1100
Re: Simple exercise Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-03-15 11:04 +0200
Re: Simple exercise Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2016-03-15 11:09 +0000
Re: Simple exercise Ian Kelly <ian.g.kelly@gmail.com> - 2016-03-14 09:16 -0600
Re: Simple exercise Rick Johnson <rantingrickjohnson@gmail.com> - 2016-03-14 09:11 -0700
Re: Simple exercise Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-14 15:23 +0000
Re: Simple exercise Peter Otten <__peter__@web.de> - 2016-03-14 17:00 +0100
Re: Simple exercise Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-11 02:05 +0000
Re: Simple exercise Rick Johnson <rantingrickjohnson@gmail.com> - 2016-03-14 07:07 -0700
Re: Simple exercise Larry Martell <larry.martell@gmail.com> - 2016-03-14 10:13 -0400
Re: Simple exercise alister <alister.ware@ntlworld.com> - 2016-03-14 14:18 +0000
Re: Simple exercise Rick Johnson <rantingrickjohnson@gmail.com> - 2016-03-14 08:22 -0700
Re: Simple exercise MRAB <python@mrabarnett.plus.com> - 2016-03-14 15:57 +0000
Re: Simple exercise Chris Kaynor <ckaynor@zindagigames.com> - 2016-03-10 18:14 -0800
Re: Simple exercise boffi <boffi@casa.sua> - 2016-03-17 22:28 +0100
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