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Mon Jul 17 11:34:50 EDT 2017 · https://mail.python.org/pipermail/python-dev/2017-July/148605.html

Makes sense. Thanks.  S

Steve Holden

On Mon, Jul 17, 2017 at 4:29 PM, Raymond Hettinger <
raymond.hettinger at gmail.com> wrote:

>
> > On Jul 17, 2017, at 8:22 AM, Steve Holden <steve at holdenweb.com> wrote:
> >
> > My only question is "what's a variable called _source doing in the
> public API?"
>
> The convention for named tuple hnas been for all the methods and
> attributes to be prefixed with an underscore so that the names won't
> conflict with field names in the named tuple itself.  For example, we want
> to allow Path=namedtuple('Path', ['source', 'destination']).
>
> If I had it all to do over again, it might have been better to have had a
> different convention like source_ with a trailing underscore, but that ship
> sailed long ago :-)
>
>
> Raymond
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[Python-Dev] Impact of Namedtuple on startup time