tests: use packaging from setuptools instead of deprecated distutils When invoking StrictVersion in 3.12 we got: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead. distutils is dead in the standard library, and we have to move towards using `setuptools` as general extern dependency. Instead of also requiring the extern `packaging`, we will just use the packaging that is vendored in setuptools.

tests: drop test-demandimport.py distutils test that failed with warnings The test would fail because warnings: /usr/lib/python3.11/site-packages/_distutils_hack/__init__.py:18: UserWarning: Distutils was imported before Setuptools, but importing Setuptools also replaces the `distutils` module in `sys.modules`. This may lead to undesirable behaviors or errors. To avoid these issues, avoid using distutils directly, ensure that setuptools is installed in the traditional way (e.g. not an editable install), and/or make sure that setuptools is always imported before distutils. warnings.warn( /usr/lib/python3.11/site-packages/_distutils_hack/__init__.py:33: UserWarning: Setuptools is replacing distutils. warnings.warn("Setuptools is replacing distutils.") The test for distutils.msvc9compiler comes from 2205d00b6d2b. But since then, distutils is going away, and this test must change somehow. It is unclear exactly how setuptools depended on msvc9compiler, but setuptools also moved forward, and this exact test no longer seems relevant. It thus seems like a fair solution to remove the test while keeping the demandimport blacklist of distutils.msvc9compiler.

utils: test coverage of makedate Explore the scenario from ae04af1ce78d to avoid future regressions. This was intended to give some coverage of the change in faccec1edc2c.

filecache: use bytes wherever possible in the tests This is closer than the actual usage, so I figured in would not hurt.

cachestat: avoid creating cachestat for http path The statichttprepo repo attemp to create cachestat for content we access through http. We modify the couple of place create cachestat object to detect this situation and avoids it. This is not marvelous, but there is few of them and the freeze is looming. This helps on Windows where calling cachestat on http path might create issues.

filecache: use binary path in the test This was overlooked when converting string. This is needed as we are about to introduce bytes specific code in the filecache code path.