alembic / sphinx puzzler
james at reciperadar.com
Tue Feb 14 18:08:51 UTC 2023
I noticed what _seemed_ like a quick reproducible-build fix for alembic (a
database migration framework written in Python). A few hours later though,
I'm still puzzled.
The problem appears in a similar pattern across various architectures in
the diffoscope results for alembic -- both amd64 and arm64, for
example. It looks like the variations are in sphinx-generated
documentation where the ordering of collection elements -- like the items
in this attribute definition -- differs in the output.
My understanding is that sphinx is using Python 3.11's built-in AST parser,
which doesn't provide parse-tree traversal order guarantees, during these
builds - and that'd seem to make sense as a cause.
Also: this might be the same issue as described in
Does anyone have suggestions about how to proceed? I'll likely take more
of a look again tomorrow.
(note: posting from my work email, because some of my work infrastructure
uses alembic, and so I think there's a clear, if small, work-related
motivation for this)
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