[PATCH 7 of 7] py3: use encoding.environ in ui.py

[Yuya Nishihara]

On Thu, 03 Nov 2016 03:53:12 +0530, Pulkit Goyal wrote:
> # HG changeset patch
> # User Pulkit Goyal <7895pulkit at gmail.com>
> # Date 1478122977 -19800
> #      Thu Nov 03 03:12:57 2016 +0530
> # Node ID 512f0781517b6a209e94ef8eb14409048f0f4ae8
> # Parent  aef03902a5c1a13e9775059a5efdeb2466399ada
> py3: use encoding.environ in ui.py

Queued this, thanks.