[Python-Dev] Python3 "complexity" (was RFC: PEP 460: Add bytes...)

[Nick Coghlan]

On 9 Jan 2014 22:08, "Antoine Pitrou" <solipsis at pitrou.net> wrote:
>
> On Thu, 9 Jan 2014 09:03:40 -0500
> Daniel Holth <dholth at gmail.com> wrote:
> > They emphatically do not want the Python 2
> > model especially not implicit coercion. They only want additional
> > tools for text or string processing in Python 3.
>
> That's a good point. Now it's up to people who need those additional
> tools to propose them. We can't second-guess everyone's needs.

Note that I've tried to find prettier ways to write the standard library's
URL parsing code. In addition to the original alternatives I explored, I'm
currently experimenting with a generic function based approach with mixed
results.  I'm reserving judgement until I see how the completed conversion
looks, but currently it doesn't seem any simpler than my current higher
order function approach.

However, the implicit conversions are *critical* to sharing constants
between the two code paths in Python 2 without coercing bytes to str or
vice-versa (disabling the implicit coercion breaks Unicode handling), so
I'm still not sure the goal is achievable without creating a new type
*specifically* for that task.

Python 3 only code is generally much simpler - you can usually pick binary
or text and just support one of them, rather than trying to support both in
the same API.

Cheers,
Nick.

>
> Regards
>
> Antoine.
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