[New-bugs-announce] [issue47131] Speedup test_unparse

[Jeremy Kloth]

New submission from Jeremy Kloth <jeremy.kloth+python-tracker at gmail.com>:

The string building and comparing of ast.dump() causes significant slowdowns on the large ASTs produced when doing the roundtrip test on the stdlib.

This PR avoids that cost by doing a direct node traversal and comparison.  It results in a 33% runtime improvement on machines to which I have access.

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components: Tests
messages: 416082
nosy: jkloth
priority: normal
severity: normal
status: open
title: Speedup test_unparse
versions: Python 3.10, Python 3.11, Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue47131>
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