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Groups > comp.lang.python > #58395

Re: How to add a current string into an already existing list

References <l52pdo$k0f$1@dont-email.me> <mailman.1951.1383398828.18130.python-list@python.org> <l5391q$9in$1@dont-email.me> <bdm7fiF28rrU1@mid.individual.net> <roy-D613E2.07164103112013@news.panix.com>
Date 2013-11-04 00:13 +1100
Subject Re: How to add a current string into an already existing list
From Chris Angelico <rosuav@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.1982.1383484448.18130.python-list@python.org> (permalink)

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On Sun, Nov 3, 2013 at 11:16 PM, Roy Smith <roy@panix.com> wrote:
> The limitation, of course, is that the data is opaque as far as the
> database goes; you can't do queries against it.  But, if all you need to
> do is store the list and be able to retrieve it, it's a perfectly
> reasonable thing to do, and a lot more efficient than doing a join on a
> secondary table.

Yeah, that can be an effective way to store complex data - especially
if the nesting level isn't fixed. (Normalization can handle a
single-level list, but it's a lot messier for handling lists of lists,
for instance.)

I still think that the OP's task would be best suited to a separate
table (one table of visitors, another of downloads, where the
Downloads table has a foreign key to Visitors), but I'm reminded of
XKCD 1027: the thing standing in the way of his code is that the
person coding it... is him. And of course, this is all without getting
into the non-code aspects of this proposal - as have been mentioned
several times, like EU regulations on retaining this level of data.

ChrisA

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Thread

How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-02 13:58 +0200
  Re: How to add a current string into an already existing list Andreas Perstinger <andipersti@gmail.com> - 2013-11-02 14:03 +0100
    Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-02 18:25 +0200
      Re: How to add a current string into an already existing list Denis McMahon <denismfmcmahon@gmail.com> - 2013-11-02 16:43 +0000
        Re: How to add a current string into an already existing list rusi <rustompmody@gmail.com> - 2013-11-02 10:40 -0700
          Re: How to add a current string into an already existing list Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-11-02 18:28 +0000
          Re: How to add a current string into an already existing list Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2013-11-02 20:30 +0200
            Re: How to add a current string into an already existing list Chris Angelico <rosuav@gmail.com> - 2013-11-03 08:50 +1100
              Re: How to add a current string into an already existing list Roy Smith <roy@panix.com> - 2013-11-02 18:00 -0400
                Re: How to add a current string into an already existing list Chris Angelico <rosuav@gmail.com> - 2013-11-03 09:13 +1100
          Re: How to add a current string into an already existing list Walter Hurry <walterhurry@lavabit.com> - 2013-11-02 21:12 +0000
      Re: How to add a current string into an already existing list Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2013-11-03 19:06 +1300
        Re: How to add a current string into an already existing list Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-11-03 10:56 +0100
        Re: How to add a current string into an already existing list Roy Smith <roy@panix.com> - 2013-11-03 07:16 -0500
          Re: How to add a current string into an already existing list Chris Angelico <rosuav@gmail.com> - 2013-11-04 00:13 +1100
          Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-04 19:03 +0200
            Re: How to add a current string into an already existing list Denis McMahon <denismfmcmahon@gmail.com> - 2013-11-04 22:46 +0000
              Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 08:54 +0200
                Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 10:07 +0200
                Re: How to add a current string into an already existing list Chris Angelico <rosuav@gmail.com> - 2013-11-05 19:21 +1100
                Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 10:53 +0200
                Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 10:54 +0200
                Re: How to add a current string into an already existing list "M.F." <morefool@gmail.com> - 2013-11-05 17:10 +0800
                Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 11:34 +0200
                Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 11:56 +0200
                Re: How to add a current string into an already existing list Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-11-05 11:20 +0100
                Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 12:33 +0200
                Re: How to add a current string into an already existing list Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-11-05 11:59 +0100
                Re: How to add a current string into an already existing list Dave Angel <davea@davea.name> - 2013-11-05 05:16 -0600
                Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 18:20 +0200
                Re: How to add a current string into an already existing list Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-11-05 11:49 +0000
                Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 14:25 +0200
                Re: How to add a current string into an already existing list Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-11-05 13:42 +0100
                Re: How to add a current string into an already existing list Dave Angel <davea@davea.name> - 2013-11-05 07:15 -0600
                Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 17:39 +0200
                Re: How to add a current string into an already existing list Tim Chase <python.list@tim.thechases.com> - 2013-11-05 09:45 -0600
                Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 17:50 +0200
                Re: How to add a current string into an already existing list Dave Angel <davea@davea.name> - 2013-11-05 23:36 -0600
                Re: How to add a current string into an already existing list Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-11-06 08:53 +0000
                Re: How to add a current string into an already existing list Joel Goldstick <joel.goldstick@gmail.com> - 2013-11-05 10:44 -0500
                Re: How to add a current string into an already existing list Dave Angel <davea@davea.name> - 2013-11-05 05:00 -0600
                Re: How to add a current string into an already existing list Denis McMahon <denismfmcmahon@gmail.com> - 2013-11-05 17:48 +0000
                Re: How to add a current string into an already existing list Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-11-05 11:07 +0100
                Re: How to add a current string into an already existing list Larry Hudson <orgnut@yahoo.com> - 2013-11-05 20:52 -0800
                Re: How to add a current string into an already existing list Chris Angelico <rosuav@gmail.com> - 2013-11-05 21:01 +1100
                Re: How to add a current string into an already existing list Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-11-05 09:39 +0100

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