[Reproducible-builds] Bug#825968: epydoc: nondeterminism caused by list and file ordering

[Sascha Steinbiss]

Source: epydoc
Version: 3.0.1+dfsg-12
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: randomness fileordering

Dear Maintainer,

while working on the “reproducible builds” effort [1], we have noticed
that documentation written by epydoc list several items in an order that varies
across builds.

Tha attached patch makes sure that subclass lists are traversed in a sorted
fashion, as well as that input files are processed in a deterministic way.

Once applied, more packages using epydoc, e.g. python-csb [2], can be built
reproducibly in our current experimental framework.

Please note that there are also a few more packages [3] that may be affected by other,
more specific issues. It is likely that additional patches will follow.

Many thanks,
Sascha Steinbiss

[1] https://wiki.debian.org/ReproducibleBuilds
[2] https://tests.reproducible-builds.org/rb-pkg/unstable/amd64/python-csb.html
[3] https://tests.reproducible-builds.org/issues/unstable/use_epydoc_issue.html
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