[issue42069] Make filecmp more pythonic

[Raymond Hettinger]

Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:

In general, we don't accept patches like this:

* It risks breaks (in fact the tests are failing.
* We're not apply Black's quoting preferences to existing files.
* We're not yet adding type annotations through out.
* The PR introduces multiple new dependencies on other modules.
  This tends to slow down load time and complicate maintenance.
* There are subtle changes to the logic and API because
  of the dataclasses, cached_property, and lru_cache.
* We want to avoid code churn because it reduces stability
  and because it complicates maintenance (making it harder to
  apply fixes across versions).

Thank you for the suggestion, but we'll decline.

----------
nosy: +rhettinger
resolution:  -> rejected
stage: patch review -> resolved
status: open -> closed

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42069>
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