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Re: PyWart: "Python's import statement and the history of external dependencies"

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Chris Angelico <rosuav@gmail.com> writes:

> Just out of curiosity, why does the stdlib need modules for
> manipulating .wav and other sound files, but we have to go to PyPI to
> get a PostgreSQL client? It's a queer world...

I would venture the follow two reasons, either of which is sufficient to
explain the difference:

* Modules enter the standard library only if they are judged both to be
  good quality *and* have a credible promise to continue to maintain
  them in the standard library on an ongoing basis.

  If one module has reliable maintainers offering to do the work and
  another does not, the latter will not be a candidate for inclusion in
  the Python standard library.

* Modules enter the standard library only if their feature set is stable
  enough that they can remain essentially unchanged, feature-wise, for
  many years and still be widely useful.

  For a data stream format (like WAV and other mature formats), a module
  working well today is likely to work just as well for the same purpose
  in several years's time, long enough for today's Python to go through
  its full life cycle of support.

  PostgreSQL is a full-blown system that is itself under continual
  development, and its APIs continually change to match. Whatever Python
  API for PostgreSQL gets put into the standard library today is likely
  to be obsolete long before today's version of Python gets close to
  ending support. That makes it a poor candidate for inclusion in the
  standard library.

-- 
 \       “The generation of random numbers is too important to be left |
  `\                                    to chance.” —Robert R. Coveyou |
_o__)                                                                  |
Ben Finney

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PyWart: "Python's import statement and the history of external dependencies" Rick Johnson <rantingrickjohnson@gmail.com> - 2014-11-15 21:01 -0800
  Re: PyWart: "Python's import statement and the history of external dependencies" Chris Angelico <rosuav@gmail.com> - 2014-11-16 16:16 +1100
  Re: PyWart: "Python's import statement and the history of external dependencies" alex23 <wuwei23@gmail.com> - 2014-11-21 10:14 +1000
    Re: PyWart: "Python's import statement and the history of external dependencies" Chris Angelico <rosuav@gmail.com> - 2014-11-21 11:31 +1100
    Re: PyWart: "Python's import statement and the history of external dependencies" Rick Johnson <rantingrickjohnson@gmail.com> - 2014-11-20 19:53 -0800
      Re: PyWart: "Python's import statement and the history of external dependencies" Tim Chase <python.list@tim.thechases.com> - 2014-11-21 04:26 -0600
        Re: PyWart: "Python's import statement and the history of external dependencies" Rick Johnson <rantingrickjohnson@gmail.com> - 2014-11-21 07:52 -0800
          Re: PyWart: "Python's import statement and the history of external dependencies" Tim Chase <python.list@tim.thechases.com> - 2014-11-21 10:12 -0600
          Re: PyWart: "Python's import statement and the history of external dependencies" Ian Kelly <ian.g.kelly@gmail.com> - 2014-11-21 10:42 -0700
      Re: PyWart: "Python's import statement and the history of external dependencies" Ned Batchelder <ned@nedbatchelder.com> - 2014-11-21 06:32 -0500
      Re: PyWart: "Python's import statement and the history of external dependencies" Ian Kelly <ian.g.kelly@gmail.com> - 2014-11-21 08:33 -0700
        Re: PyWart: "Python's import statement and the history of external dependencies" Rick Johnson <rantingrickjohnson@gmail.com> - 2014-11-21 10:24 -0800
          Re: PyWart: "Python's import statement and the history of external dependencies" Chris Angelico <rosuav@gmail.com> - 2014-11-22 05:34 +1100
          Re: PyWart: "Python's import statement and the history of external dependencies" Michael Torrie <torriem@gmail.com> - 2014-11-21 12:05 -0700
            Re: PyWart: "Python's import statement and the history of external dependencies" Rick Johnson <rantingrickjohnson@gmail.com> - 2014-11-21 12:29 -0800
              Re: PyWart: "Python's import statement and the history of external dependencies" Michael Torrie <torriem@gmail.com> - 2014-11-21 15:54 -0700
          Re: PyWart: "Python's import statement and the history of external dependencies" Ian Kelly <ian.g.kelly@gmail.com> - 2014-11-21 12:23 -0700
            Re: PyWart: "Python's import statement and the history of external dependencies" Rick Johnson <rantingrickjohnson@gmail.com> - 2014-11-21 14:25 -0800
              Re: PyWart: "Python's import statement and the history of external dependencies" Rick Johnson <rantingrickjohnson@gmail.com> - 2014-11-21 15:21 -0800
                Re: PyWart: "Python's import statement and the history of external dependencies" Chris Angelico <rosuav@gmail.com> - 2014-11-22 10:52 +1100
                Re: PyWart: "Python's import statement and the history of external dependencies" Rick Johnson <rantingrickjohnson@gmail.com> - 2014-11-21 17:07 -0800
                Re: PyWart: "Python's import statement and the history of external dependencies" Chris Angelico <rosuav@gmail.com> - 2014-11-22 13:36 +1100
                Re: PyWart: "Python's import statement and the history of external dependencies" Ian Kelly <ian.g.kelly@gmail.com> - 2014-11-22 02:27 -0700
                Re: PyWart: "Python's import statement and the history of external dependencies" sohcahtoa82@gmail.com - 2014-11-21 16:33 -0800
                Import a module from a specific file path (was: PyWart: "Python's import statement and the history of external dependencies") Ben Finney <ben+python@benfinney.id.au> - 2014-11-22 11:37 +1100
                Re: Import a module from a specific file path Marko Rauhamaa <marko@pacujo.net> - 2014-11-22 08:28 +0200
                Re: Import a module from a specific file path (was: PyWart: "Python's import statement and the history of external dependencies") Chris Angelico <rosuav@gmail.com> - 2014-11-22 13:32 +1100
                Re: Import a module from a specific file path Ben Finney <ben+python@benfinney.id.au> - 2014-11-22 17:46 +1100
              Re: PyWart: "Python's import statement and the history of external dependencies" Ian Kelly <ian.g.kelly@gmail.com> - 2014-11-21 17:32 -0700
                Re: PyWart: "Python's import statement and the history of external dependencies" Rick Johnson <rantingrickjohnson@gmail.com> - 2014-11-21 17:48 -0800
          Re: PyWart: "Python's import statement and the history of external dependencies" Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-11-21 15:38 -0500
        Re: PyWart: "Python's import statement and the history of external dependencies" Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-11-22 23:25 +1100
          Re: PyWart: "Python's import statement and the history of external dependencies" Chris Angelico <rosuav@gmail.com> - 2014-11-23 00:00 +1100
            Re: PyWart: "Python's import statement and the history of external dependencies" Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-11-23 17:30 +1100
              Re: PyWart: "Python's import statement and the history of external dependencies" Rustom Mody <rustompmody@gmail.com> - 2014-11-22 22:44 -0800
              Re: PyWart: "Python's import statement and the history of external dependencies" Chris Angelico <rosuav@gmail.com> - 2014-11-23 17:56 +1100
              Re: PyWart: "Python's import statement and the history of external dependencies" Chris Angelico <rosuav@gmail.com> - 2014-11-23 17:59 +1100
                Re: PyWart: "Python's import statement and the history of external   dependencies" Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-11-24 11:37 +1300
                Re: PyWart: "Python's import statement and the history of external dependencies" Rick Johnson <rantingrickjohnson@gmail.com> - 2014-11-23 22:25 -0800
                Re: PyWart: "Python's import statement and the history of external dependencies" Chris Angelico <rosuav@gmail.com> - 2014-11-24 17:34 +1100
                Re: PyWart: "Python's import statement and the history of external dependencies" Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-11-24 10:34 +0000
                Re: PyWart: "Python's import statement and the history of external dependencies" Rick Johnson <rantingrickjohnson@gmail.com> - 2014-11-24 08:51 -0800
                Re: PyWart: "Python's import statement and the history of external dependencies" Ned Batchelder <ned@nedbatchelder.com> - 2014-11-24 12:06 -0500
                Re: PyWart: "Python's import statement and the history of external dependencies" Robin Becker <robin@reportlab.com> - 2014-11-24 17:07 +0000
                Re: PyWart: "Python's import statement and the history of external dependencies" Marko Rauhamaa <marko@pacujo.net> - 2014-11-24 19:08 +0200
                Re: PyWart: "Python's import statement and the history of external dependencies" Rustom Mody <rustompmody@gmail.com> - 2014-11-24 09:38 -0800
                Re: PyWart: "Python's import statement and the history of external dependencies" Ian Kelly <ian.g.kelly@gmail.com> - 2014-11-24 15:34 -0700
              Re: PyWart: "Python's import statement and the history of external dependencies" Ben Finney <ben+python@benfinney.id.au> - 2014-11-23 18:43 +1100
              Re: PyWart: "Python's import statement and the history of external dependencies" Chris Angelico <rosuav@gmail.com> - 2014-11-23 18:51 +1100
              Re: PyWart: "Python's import statement and the history of external dependencies" Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-11-23 11:23 -0500
              Re: PyWart: "Python's import statement and the history of external dependencies" Chris Angelico <rosuav@gmail.com> - 2014-11-24 03:36 +1100
          Re: PyWart: "Python's import statement and the history of external dependencies" Tim Chase <python.list@tim.thechases.com> - 2014-11-22 15:27 -0600
            Re: PyWart: "Python's import statement and the history of external dependencies" Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-11-23 12:00 +1100
              Re: PyWart: "Python's import statement and the history of external dependencies" Tim Chase <python.list@tim.thechases.com> - 2014-11-22 19:33 -0600

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