[PATCH v3] py3: handle meta-path finders that only use pre-python3.4 API

[Yuya Nishihara]

On Sun, 28 Apr 2019 04:18:45 +0000, Ludovic Chabant wrote:
> # HG changeset patch
> # User Ludovic Chabant <ludovic at chabant.com>
> # Date 1555683918 0
> #      Fri Apr 19 14:25:18 2019 +0000
> # Branch stable
> # Node ID 3611368a1af3037427eb59635c7dad8dab67c606
> # Parent  4a8d9ed864754837a185a642170cde24392f9abf
> py3: handle meta-path finders that only use pre-python3.4 API

Queued, thanks.