Running the Python test suite has two issues:

• A test leaks 3 .pem files in /tmp
• The test suite is not marked as failed when it leaks temporary files (in /tmp)

Moreover, test_tools enters an unlimited loop and fills the $TMPDIR directory if the $TMPDIR is a sub-directory of the Python source code directory. Example:

• /home/vstinner/python/main/ : Python source code
• /home/vstinner/python/main/TMP/ : Temporary directory ($TMPDIR)

Running test_freeze_simple_script() of test_tools copies TMP/ into TMP/TMP/ and then into TMP/TMP/TMP/, etc. Quickly, it fills TMP/ with a "loop" of files :-)

Linked PRs

• gh-93353: regrtest checks for leaked temporary files #93776