[Debian-pan-maintainers] Bug#1071132: ovito accesses the internet during the build

[Drew Parsons]

Package: ovito
Followup-For: Bug #1071132

There is something weird about this error
(not the accessing internet, but the failure when it cannot).

sphinx does not normally fail if the intersphinx urls cannot be
accessed.  For instance scipy docs refer to "neps", which is not
available, but that intersphinx failure is ignored and the scipy doc
build carries on.

What is ovito doing differently to other python packages,
that it fails on an intersphinx internet error?