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Groups > comp.lang.python > #72651

Re: Micro Python -- a lean and efficient implementation of Python 3

From Paul Rubin <no.email@nospam.invalid>
Newsgroups comp.lang.python
Subject Re: Micro Python -- a lean and efficient implementation of Python 3
Date 2014-06-04 11:25 -0700
Organization Nightsong/Fort GNOX
Message-ID <7x1tv4v8et.fsf@ruckus.brouhaha.com> (permalink)
References (9 earlier) <538ecdef$0$11109$c3e8da3@news.astraweb.com> <7xoay9w1h0.fsf@ruckus.brouhaha.com> <mailman.10697.1401879750.18130.python-list@python.org> <8761kgvqdr.fsf@elektro.pacujo.net> <mailman.10701.1401884774.18130.python-list@python.org>

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Tim Chase <python.list@tim.thechases.com> writes:
> As mentioned elsewhere, I've got a LOT of code that expects that
> string indexing is O(1) and rarely are those strings/offsets reused
> I'm streaming through customer/provider data files, so caching
> wouldn't do much good other than waste space and the time to maintain
> them.

I'm having trouble understanding -- if they're only used once then
what's the problem?  You're reading some enormous file into a string and
then randomly accessing it by character offset?  What size are these
strings?  I can think of a number of workarounds including language
extensions, but mostly I'd be interested in seeing some actual
benchmarks of your unmodified program under both representations.

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Thread

Re: Micro Python -- a lean and efficient implementation of Python 3 Paul Sokolovsky <pmiscml@gmail.com> - 2014-06-04 00:41 +0300
  Re: Micro Python -- a lean and efficient implementation of Python 3 Rustom Mody <rustompmody@gmail.com> - 2014-06-03 20:37 -0700
    Re: Micro Python -- a lean and efficient implementation of Python 3 Chris Angelico <rosuav@gmail.com> - 2014-06-04 13:52 +1000
      Re: Micro Python -- a lean and efficient implementation of Python 3 Rustom Mody <rustompmody@gmail.com> - 2014-06-03 21:40 -0700
        Re: Micro Python -- a lean and efficient implementation of Python 3 Ian Kelly <ian.g.kelly@gmail.com> - 2014-06-03 23:02 -0600
        Re: Micro Python -- a lean and efficient implementation of Python 3 Chris Angelico <rosuav@gmail.com> - 2014-06-04 17:16 +1000
          Re: Micro Python -- a lean and efficient implementation of Python 3 Steven D'Aprano <steve@pearwood.info> - 2014-06-04 07:42 +0000
            Re: Micro Python -- a lean and efficient implementation of Python 3 Paul Rubin <no.email@nospam.invalid> - 2014-06-04 00:58 -0700
              Re: Micro Python -- a lean and efficient implementation of Python 3 Robin Becker <robin@reportlab.com> - 2014-06-04 11:06 +0100
              Re: Micro Python -- a lean and efficient implementation of Python 3 Tim Chase <python.list@tim.thechases.com> - 2014-06-04 06:01 -0500
                Re: Micro Python -- a lean and efficient implementation of Python 3 Marko Rauhamaa <marko@pacujo.net> - 2014-06-04 14:57 +0300
                Re: Micro Python -- a lean and efficient implementation of Python 3 Tim Chase <python.list@tim.thechases.com> - 2014-06-04 07:25 -0500
                Re: Micro Python -- a lean and efficient implementation of Python 3 Paul Rubin <no.email@nospam.invalid> - 2014-06-04 11:25 -0700
              Re: Micro Python -- a lean and efficient implementation of Python 3 Robin Becker <robin@reportlab.com> - 2014-06-04 12:53 +0100
                Re: Micro Python -- a lean and efficient implementation of Python 3 Marko Rauhamaa <marko@pacujo.net> - 2014-06-04 15:17 +0300
                Re: Micro Python -- a lean and efficient implementation of Python 3 Robin Becker <robin@reportlab.com> - 2014-06-04 13:31 +0100
                Re: Micro Python -- a lean and efficient implementation of Python 3 Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-06-04 13:51 +0000
                Re: Micro Python -- a lean and efficient implementation of Python 3 wxjmfauth@gmail.com - 2014-06-10 00:32 -0700
                Re: Micro Python -- a lean and efficient implementation of Python 3 wxjmfauth@gmail.com - 2014-06-10 02:13 -0700
              Re: Micro Python -- a lean and efficient implementation of Python 3 Tim Chase <python.list@tim.thechases.com> - 2014-06-04 07:21 -0500
              Re: Micro Python -- a lean and efficient implementation of Python 3 Travis Griggs <travisgriggs@gmail.com> - 2014-06-06 09:59 -0700
                Re: Micro Python -- a lean and efficient implementation of Python 3 Roy Smith <roy@panix.com> - 2014-06-06 13:29 -0400
              Re: Micro Python -- a lean and efficient implementation of Python 3 Tim Chase <python.list@tim.thechases.com> - 2014-06-06 21:20 -0500
                Re: Micro Python -- a lean and efficient implementation of Python 3 wxjmfauth@gmail.com - 2014-06-10 12:27 -0700
        Re: Micro Python -- a lean and efficient implementation of Python 3 Chris Angelico <rosuav@gmail.com> - 2014-06-04 17:20 +1000
        Re: Micro Python -- a lean and efficient implementation of Python 3 Wolfgang Maier <wolfgang.maier@biologie.uni-freiburg.de> - 2014-06-04 10:00 +0200
      Re: Micro Python -- a lean and efficient implementation of Python 3 Roy Smith <roy@panix.com> - 2014-06-04 14:42 -0400
        Re: Micro Python -- a lean and efficient implementation of Python 3 Rustom Mody <rustompmody@gmail.com> - 2014-06-04 19:06 -0700
          Re: Micro Python -- a lean and efficient implementation of Python 3 Roy Smith <roy@panix.com> - 2014-06-05 09:59 -0400
            Re: Micro Python -- a lean and efficient implementation of Python 3 Chris Angelico <rosuav@gmail.com> - 2014-06-06 01:33 +1000
    Re: Micro Python -- a lean and efficient implementation of Python 3 Steven D'Aprano <steve@pearwood.info> - 2014-06-04 05:20 +0000
      Re: Micro Python -- a lean and efficient implementation of Python 3 Rustom Mody <rustompmody@gmail.com> - 2014-06-03 22:36 -0700
      Re: Micro Python -- a lean and efficient implementation of Python 3 Ian Kelly <ian.g.kelly@gmail.com> - 2014-06-03 23:55 -0600
      Re: Micro Python -- a lean and efficient implementation of Python 3 Terry Reedy <tjreedy@udel.edu> - 2014-06-04 03:00 -0400
      Re: Micro Python -- a lean and efficient implementation of Python 3 Chris Angelico <rosuav@gmail.com> - 2014-06-04 17:10 +1000

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