Bug#935395: RFP: python3-anytree -- Tree data library

[Simon McVittie <smcv@debian.org>]

Package: wnpp
Severity: wishlist

* Package name    : python3-anytree
  Version         : 2.6.0
  Upstream Author : "c0fec0de"
* URL             : https://github.com/c0fec0de/anytree
                    https://pypi.org/project/anytree/
* License         : Apache 2.0
  Programming Lang: Python
  Description     : Tree data library

Newer versions of gtk-doc-tools require anytree for gtkdoc-mkhtml2, an
experimental replacement for gtkdoc-mkhtml and gtkdoc-fixxref which speeds
up processing by transforming Docbook into HTML in Python code instead of
using XSLT.

For now I've replaced its use in gtk-doc-tools with a simple
reimplementation (it's a tree data structure, it isn't rocket science),
but in the long term either someone should package anytree, or someone
needs to ask the upstream maintainer of gtk-doc to use a different tree
implementation instead of depending on anytree (in which case this bug
can be closed as wontfix).