Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.python > #72569
| From | Roy Smith <roy@panix.com> |
|---|---|
| Newsgroups | comp.lang.python |
| Subject | Re: Unicode and Python - how often do you index strings? |
| Date | 2014-06-03 21:18 -0400 |
| Organization | PANIX Public Access Internet and UNIX, NYC |
| Message-ID | <roy-9D3770.21181203062014@news.panix.com> (permalink) |
| References | <mailman.10656.1401842403.18130.python-list@python.org> |
In article <mailman.10656.1401842403.18130.python-list@python.org>,
Chris Angelico <rosuav@gmail.com> wrote:
> A current discussion regarding Python's Unicode support centres (or
> centers, depending on how close you are to the cent[er]{2} of the
> universe)
<sarcasm style="regex-pedant">Um, you mean cent(er|re), don't you? The
pattern you wrote also matches centee and centrr.</sarcasm>
> around one critical question: Is string indexing common?
Not in our code. I've got 80008 non-blank lines of Python (2.7) source
handy. I tried a few heuristics to find patterns which might be string
indexing.
$ find . -name '*.py' | xargs egrep '\[[^]][0-9]+\]'
and then looked them over manually. I see this pattern a bunch of times
(in a single-use script):
data['shard_key'] = hashlib.md5(str(id)).hexdigest()[:4]
We do this once:
if tz_offset[0] == '-':
We do this somewhere in some command-line parsing:
process_match = args.process[:15]
There's this little gem:
return [dedup(x[1:-1].lower()) for x in
re.findall('(\[[^\]\[]+\]|\([^\)\(]+\))',title)]
It appears I wrote this one, but I don't remember exactly what I had in
mind at the time...
withhyphen = number if '-' in number else (number[:-2] + '-' +
number[-2:]) # big assumption here
Anyway, there's a bunch more, but the bottom line is that in our code,
indexing into a string (at least explicitly in application source code)
is a pretty rare thing.
Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Unicode and Python - how often do you index strings? Chris Angelico <rosuav@gmail.com> - 2014-06-04 10:39 +1000
Re: Unicode and Python - how often do you index strings? Roy Smith <roy@panix.com> - 2014-06-03 21:18 -0400
Re: Unicode and Python - how often do you index strings? Chris Angelico <rosuav@gmail.com> - 2014-06-04 12:13 +1000
Re: Unicode and Python - how often do you index strings? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-06-04 18:48 +1200
Re: Unicode and Python - how often do you index strings? alister <alister.nospam.ware@ntlworld.com> - 2014-06-04 10:57 +0000
Re: Unicode and Python - how often do you index strings? alister <alister.nospam.ware@ntlworld.com> - 2014-06-04 10:50 +0000
Re: Unicode and Python - how often do you index strings? Rustom Mody <rustompmody@gmail.com> - 2014-06-04 05:52 -0700
Re: Unicode and Python - how often do you index strings? alister <alister.nospam.ware@ntlworld.com> - 2014-06-04 13:36 +0000
Re: Unicode and Python - how often do you index strings? wxjmfauth@gmail.com - 2014-06-03 23:50 -0700
Re: Unicode and Python - how often do you index strings? Michael Torrie <torriem@gmail.com> - 2014-06-04 08:50 -0600
Re: Unicode and Python - how often do you index strings? wxjmfauth@gmail.com - 2014-06-05 00:06 -0700
Re: Unicode and Python - how often do you index strings? Marko Rauhamaa <marko@pacujo.net> - 2014-06-05 10:20 +0300
Re: Unicode and Python - how often do you index strings? alister <alister.nospam.ware@ntlworld.com> - 2014-06-05 15:39 +0000
Re: Unicode and Python - how often do you index strings? Mark H Harris <harrismh777@gmail.com> - 2014-06-05 10:57 -0500
Re: Unicode and Python - how often do you index strings? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-06-05 18:15 +0100
Re: Unicode and Python - how often do you index strings? alister <alister.nospam.ware@ntlworld.com> - 2014-06-05 17:33 +0000
Re: Unicode and Python - how often do you index strings? Joshua Landau <joshua@landau.ws> - 2014-06-05 18:18 +0100
Re: Unicode and Python Rustom Mody <rustompmody@gmail.com> - 2014-06-04 21:25 -0700
Re: Unicode and Python wxjmfauth@gmail.com - 2014-06-05 00:23 -0700
Re: Unicode and Python - how often do you index strings? Johannes Bauer <dfnsonfsduifb@gmx.de> - 2014-06-05 18:09 +0200
Re: Unicode and Python - how often do you index strings? Paul Rubin <no.email@nospam.invalid> - 2014-06-05 11:16 -0700
Re: Unicode and Python - how often do you index strings? Johannes Bauer <dfnsonfsduifb@gmx.de> - 2014-06-05 20:42 +0200
Re: Unicode and Python - how often do you index strings? Ryan Hiebert <ryan@ryanhiebert.com> - 2014-06-05 13:52 -0500
Re: Unicode and Python - how often do you index strings? Paul Rubin <no.email@nospam.invalid> - 2014-06-05 12:58 -0700
Re: Unicode and Python - how often do you index strings? Ian Kelly <ian.g.kelly@gmail.com> - 2014-06-05 14:18 -0600
Re: Unicode and Python - how often do you index strings? Johannes Bauer <dfnsonfsduifb@gmx.de> - 2014-06-06 10:47 +0200
Re: Unicode and Python - how often do you index strings? Tim Chase <python.list@tim.thechases.com> - 2014-06-06 05:37 -0500
Re: Unicode and Python - how often do you index strings? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-06-06 11:52 +0000
Re: Unicode and Python - how often do you index strings? Albert-Jan Roskam <fomcl@yahoo.com> - 2014-06-05 13:34 -0700
Re: Unicode and Python - how often do you index strings? Roy Smith <roy@panix.com> - 2014-06-05 17:00 -0400
Re: Unicode and Python - how often do you index strings? Rustom Mody <rustompmody@gmail.com> - 2014-06-05 15:24 -0700
Re: Unicode and Python - how often do you index strings? Ned Deily <nad@acm.org> - 2014-06-05 15:57 -0700
Re: Unicode and Python - how often do you index strings? Roy Smith <roy@panix.com> - 2014-06-05 20:10 -0400
Re: Unicode and Python - how often do you index strings? Ned Deily <nad@acm.org> - 2014-06-05 17:43 -0700
Re: Unicode and Python - how often do you index strings? Grant Edwards <invalid@invalid.invalid> - 2014-06-06 14:20 +0000
Re: Unicode and Python - how often do you index strings? Ian Kelly <ian.g.kelly@gmail.com> - 2014-06-05 18:05 -0600
Re: Unicode and Python - how often do you index strings? Johannes Bauer <dfnsonfsduifb@gmx.de> - 2014-06-06 10:42 +0200
Re: Unicode and Python - how often do you index strings? Larry Hudson <orgnut@yahoo.com> - 2014-06-06 20:24 -0700
Re: Unicode and Python - how often do you index strings? Chris Angelico <rosuav@gmail.com> - 2014-06-06 05:59 +1000
Re: Unicode and Python - how often do you index strings? Ryan Hiebert <ryan@ryanhiebert.com> - 2014-06-05 15:05 -0500
csiph-web