More whatsnew updates.
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R David Murray
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@ -1328,7 +1328,24 @@ standard Content Transfer Encodings.
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Other API Changes
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~~~~~~~~~~~~~~~~~
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Added :class:`email.parser.BytesHeaderParser`.
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New :class:`~email.parser.BytesHeaderParser`, added to the :mod:`~email.parser`
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module to complement :class:`~email.parser.HeaderParser` and complete the Bytes
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API.
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New utility functions:
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* :func:`~email.utils.format_datetime`: given a :class:`~datetime.datetime`,
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produce a string formatted for use in an email header.
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* :func:`~email.utils.parsedate_to_datetime`: given a date string from
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an email header, convert it into an aware :class:`~datetime.datetime`,
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or a naive :class:`~datetime.datetime` if the offset is ``-0000``.
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* :func:`~email.utils.localtime`: With no argument, returns the
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current local time as an aware :class:`~datetime.datetime` using the local
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:class:`~datetime.timezone`. Given an aware :class:`~datetime.datetime`,
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converts it into an aware :class:`~datetime.datetime` using the
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local :class:`~datetime.timezone`.
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ftplib
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@ -1453,8 +1470,14 @@ providing a user-supplied binary function.
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logging
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-------
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:func:`~logging.basicConfig` now supports an optional ``handlers`` argument
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taking an iterable of handlers to be added to the root logger.
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The :func:`~logging.basicConfig` function now supports an optional ``handlers``
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argument taking an iterable of handlers to be added to the root logger.
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A class level attribute :attr:`~logging.handlers.SysLogHandler.append_nul` has
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been added to :class:`~logging.handlers.SysLogHandler` to allow control of the
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appending of the ``NUL`` (``\000``) byte to syslog records, since for some
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deamons it is required while for others it is passed through to the log.
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math
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@ -1466,6 +1489,15 @@ the base-2 logarithm of *x*.
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(Written by Mark Dickinson in :issue:`11888`).
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mmap
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----
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The :meth:`~mmap.mmap.read` method is now more compatible with other file-like
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objects: if the argument is omitted or specified as ``None``, it returns the
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bytes from the current file position to the end of the mapping. (Contributed
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by Petri Lehtinen in :issue:`12021`.)
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multiprocessing
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---------------
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@ -1752,14 +1784,6 @@ signal
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instead of a RuntimeError: OSError has an errno attribute.
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smtp
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----
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:class:`~smtplib.SMTP` now supports the context manager protocol, allowing an
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``SMTP`` instance to be used in a ``with`` statement. (Contributed
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by Giampaolo Rodolà in :issue:`11289`.)
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smtpd
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-----
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@ -1775,11 +1799,13 @@ Orrù and Dan Boswell. :issue:`8739`)
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smtplib
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-------
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:class:`~smtplib.SMTP` now supports the context manager protocol, allowing an
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``SMTP`` instance to be used in a ``with`` statement. (Contributed
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by Giampaolo Rodolà in :issue:`11289`.)
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The :class:`~smtplib.SMTP_SSL` constructor and the :meth:`~smtplib.SMTP.starttls`
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method now accept an SSLContext parameter to control parameters of the secure
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channel.
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(Contributed by Kasun Herath in :issue:`8809`)
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channel. (Contributed by Kasun Herath in :issue:`8809`)
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socket
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@ -1942,6 +1968,10 @@ Other new functions:
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:func:`~time.clock_settime` functions with ``CLOCK_xxx`` constants.
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(Contributed by Victor Stinner in :issue:`10278`)
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To improve cross platform consistency, :func:`~time.sleep` now raises a
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:exc:`ValueError` when passed a negative sleep value. Previously this was an
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error on posix, but produced an infinite sleep on Windows.
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types
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-----
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@ -2283,9 +2313,16 @@ Porting Python code
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* The deprecated variable ``time.accept2dyear`` has been removed.
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* The undocumented internal helper class ``SSLFakeFile`` has been
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removed from :mod:`smtplib`, since its functionality has long been
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provided directly by :meth:`socket.socket.makefile`.
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* The undocumented internal helper class ``SSLFakeFile`` has been removed
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from :mod:`smtplib`, since its functionality has long been provided directly
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by :meth:`socket.socket.makefile`.
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* Passing a negative value to :func:`time.sleep` on Windows now raises an
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error instead of sleeping forever. It has always raised an error on posix.
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* The ``ast.__version__`` constant has been removed. If you need to
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make decisions affected by the AST version, use :attr:`sys.version_info`
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to make the decision.
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Porting C code
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@ -3147,7 +3147,7 @@ Library
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- Issue #12352: Fix a deadlock in multiprocessing.Heap when a block is freed by
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the garbage collector while the Heap lock is held.
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- Issue #12462: time.sleep() now calls immediatly the (Python) signal handler
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- Issue #12462: time.sleep() now immediately calls the (Python) signal handler
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if it is interrupted by a signal, instead of having to wait until the next
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instruction.
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