Since 255085@main, the Flatpak SDK ships with Python 3.10. This version removed[1] some aliases for classes like `collections.Iterable` and `collections.Mapping` (which actually living inside `collections.abc`). The w3c webdriver test suite uses then in a couple of helper scripts. This makes some tests to pass normally but fail the teardown step. This was fixed in the webdriver test suite in this commit from Nov 2021: https://github.com/web-platform-tests/wpt/commit/1a0256c677df9e111281b32a8af347ae225e8636 [1] https://github.com/python/cpython/commit/c47c78b878ff617164b2b94ff711a6103e781753
Pull request: https://github.com/WebKit/WebKit/pull/5612
Committed 255813@main (da4f8f1aad4c): <https://commits.webkit.org/255813@main> Reviewed commits have been landed. Closing PR #5612 and removing active labels.
<rdar://problem/101410181>