Python3.0 has more duplication in source code than Python2.5

Henry Read henryar2 at gmail.com
Sun Feb 8 10:10:12 CET 2009


I don't think code duplication rate has strong relationship towards code
quality.

On Sun, Feb 8, 2009 at 9:12 AM, Terry <terry.yinzhe at gmail.com> wrote:

> On 2月8日, 上午8时51分, Terry <terry.yin... at gmail.com> wrote:
> > On 2月8日, 上午12时20分, Benjamin Peterson <benja... at python.org> wrote:
> >
> > > Terry <terry.yinzhe <at> gmail.com> writes:
> >
> > > > On 2月7日, 下午7时10分, "Diez B. Roggisch" <de... at nospam.web.de> wrote:
> > > > > Do you by any chance have a few examples of these? There is a lot
> of
> > > > > idiomatic code in python to e.g. acquire and release the GIL or
> doing
> > > > > refcount-stuff. If that happens to be done with rather generic
> names as
> > > > > arguments, I can well imagine that as being the cause.
> > > > Starting at line 5119 of D:\DOWNLOADS\Python-3.0\Python\Python-ast.c
> >
> > > This isn't really fair because Python-ast.c is auto generated. ;)
> >
> > Oops! I don't know that! Then the analysis will not be valid, since
> > too many duplications are from there.
>
> Hey!
>
> I have to say sorry because I found I made a mistake. Because Python-
> ast.c is auto-generated and shouldn't be counted here, the right
> duplication rate of Python3.0 is very small (5%).
> And I found the duplications are quite trivial, I wound not say that
> all of them are acceptable, but certainly not a strong enough evident
> for code quality.
>
> I have made the same analysis to some commercial source code, the
> dup60 rate is quite often significantly larger than 15%.
> --
> http://mail.python.org/mailman/listinfo/python-list
>
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