Py_UCS4 buffer

or datetime objects.

module name into consideration when determining whether a module is a
package or not. This prevents importing a module's __init__ module
directly and having it considered a package, which can lead to
duplicate sub-modules.

Thanks to Ronan Lamy for reporting the bug.

that they are deprecated (previous commit documented this fact in the
module docs).

iter_modules() requires iter_modules() be defined on an importer. The
importers in importlib do not define this non-standard method.

Patch by Serhiy Storchaka.

before resorting to terminate()

Issue #15061: Don't oversell the capabilities of the new non-shortcircuiting comparison function in hmac

Skip XincludeTest entirely instead of just ignoring failures, because it may segfault, depending on the order of running tests

Removed _SimpleElementPath and its flaky test. The test monkey-patches the module, which causes other failures and fails itself depending on the order tests are run.

Replace the iter/itertext methods of Element in _elementtree with true C implementations, instead of the bootstrapped Python code. In addition to being cleaner (removing the last remains of the bootstrapping code in _elementtree), this gives a 10x performance boost for iter() on large documents.
Also reorganized the tests a bit to be more robust.

Patch by Robin Schreiber.

Patch by Robin Schreiber.