www/py-html5lib with FLAVOR=py27 failed to build

[Yasuhiro KIMURA]

From: KIRIYAMA Kazuhiko <kiri at truefc.org>
Subject: www/py-html5lib with FLAVOR=py27 failed to build
Date: Sat, 25 Jul 2020 15:17:04 +0900

> www/py-html5lib with FLAVOR=py27 had failed to build:

I tried `cd /usr/ports/www/py-html5lib; make FLAVOR=py27 install` with
following conditions,

OS: 11.4-RELEASE, 12.1-RELEASE and 13-CURRENT r363475 (amd64)
Ports tree: head r543492

And in all cases it compeletes without any error.

Do you have any non-default setting about options or something related
to ports build?

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Yasuhiro KIMURA