[Python-Dev] [RFC] Removing pure Python implementation of OrderedDict (original) (raw)

Antoine Pitrou solipsis at pitrou.net
Tue Sep 5 09:22:48 EDT 2017

On Tue, 5 Sep 2017 17:38:06 +0900 INADA Naoki <songofacandy at gmail.com> wrote:

Like that, how about removing OrderedDict Pure Python implementation from stdlib and require it to implementation?

I don't like this. The C version of OrderedDict is probably very hard to read, while the Python version helps understand the semantics. Also, when devising a new API, it's much easier to first try it out on the Python version.

I'm considering adding OrderedDict.lruget(key, default=None) which atomically lookup key and move the key to end if found.

The Python version needn't have the same atomicity requirements as the C version.

Regards

Antoine.

More information about the Python-Dev mailing list