v4.1.0

• Keep UniqueList membership in sync when replacing an indexed item, and leave membership unchanged when the index is out of range, contributed by @shkyyy18 in #51.
• Keep UniqueList membership in sync for slice assignment, extend, pop, remove, clear, += and *=, so extend and += no longer add duplicates and removed values can be added again.
• Accept one-shot iterables in UniqueList slice assignment, allow a slice to reuse the values it replaces, and reject a slice that repeats a value.
• Make copy.copy and copy.deepcopy of a UniqueList return a working copy with its own membership.
• Leave UniqueList membership unchanged when insert fails, and answer in for an unhashable value the way a list does.
• Make CastedDict and LazyCastedDict load from pickle on every protocol, including pickles written by 4.0.1, and stop copy.copy and copy.deepcopy from casting the stored values a second time.
• Cast what setdefault and |= store in a CastedDict or LazyCastedDict. A None default is stored as it is.
• Cast the key of a LazyCastedDict once when it is stored. It was cast twice.
• Let keyword arguments win over the mapping in update and the constructor of the casted dicts, as dict does.
• Make != the opposite of == for SliceableDeque, and compare unequal to a set when an item is unhashable.
• Remove the iterable of mappings from the DictUpdateArgs type alias. The code never accepted that shape.
• Log the traceback in Logged.exception(), and name the caller in every record of Logged instead of logger.py. Code that passed stacklevel=2 to work around the wrong caller now points one frame too high.
• Stop Logurud from crashing on a message with a brace in it. A message without arguments is logged as written, so braces that were doubled to avoid the crash now show doubled.
• Keep the value of a class that combines Logged or Logurud with a type such as int or str.
• Use the whole match in to_int and to_float for a pattern without a group, and never return a negative power from scale_1024.
• Count every day once in timesince, describe a negative timedelta by its size, and accept a timezone-aware datetime.
• Keep an acronym whole before an underscore or a digit in camel_to_underscore, so HTTP_OK becomes http_ok.
• Let import_global import a nested module that nothing imported before.
• Cancel the pending item of abatcher when the consumer stops early. A source that is an async generator ends at that point, where a leaked task used to take its next item.
• Restart the interval of abatcher after a full batch, and accept an iterator whose __anext__ returns a future.
• Accept a plain function as on_timeout in aio_generator_timeout_detector.
• Truncate format_time exactly for a precision below one second, and print the placeholder for nan.
• Limit the first sleep of timeout_generator and aio_timeout_generator to maximum_interval.
• Let acount count down to a stop with a negative step.
• Log a skipped call of sample through the logger of its module instead of the root logger, which installed a handler on it.
• Keep the name, docstring and signature of a function under listify, and leave the annotations of the wrapped function alone in wraps_classmethod.
• Return the value of total_seconds() from timedelta_to_seconds for a duration with a fraction.
• Correct docstrings that described something else than the code does, among them to_str returning bytes and the timeouts that read 0 as none.
• Run the timing tests on a fake clock, so they no longer depend on sleep accuracy, and ship conftest.py in the sdist.