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Merge 3.5
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‎Doc/whatsnew/3.5.rst‎

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@@ -118,10 +118,6 @@ Significant improvements in standard library:
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:ref:`support for Memory BIO <whatsnew-sslmemorybio>`, which decouples SSL
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protocol handling from network IO.
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* :mod:`traceback` module has been significantly
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:ref:`enhanced <whatsnew-traceback>` for improved
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performance and developer convenience.
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* The new :func:`os.scandir` function provides a
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:ref:`better and significantly faster way <whatsnew-pep-471>`
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of directory traversal.
@@ -133,6 +129,10 @@ Significant improvements in standard library:
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* The new :func:`subprocess.run` function provides a
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:ref:`streamlined way to run subprocesses <whatsnew-subprocess>`.
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* :mod:`traceback` module has been significantly
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:ref:`enhanced <whatsnew-traceback>` for improved
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performance and developer convenience.
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Security improvements:
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@@ -806,13 +806,6 @@ The :class:`~cgi.FieldStorage` class now supports the :term:`context manager`
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protocol. (Contributed by Berker Peksag in :issue:`20289`.)
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csv
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---
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The :meth:`~csv.csvwriter.writerow` method now supports arbitrary iterables,
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not just sequences. (Contributed by Serhiy Storchaka in :issue:`23171`.)
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cmath
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-----
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@@ -959,6 +952,13 @@ don't provide any options to redirect it::
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(Contributed by Berker Peksag in :issue:`22389`.)
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csv
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---
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The :meth:`~csv.csvwriter.writerow` method now supports arbitrary iterables,
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not just sequences. (Contributed by Serhiy Storchaka in :issue:`23171`.)
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curses
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------
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@@ -1636,6 +1636,29 @@ a :func:`~collections.namedtuple`. (Contributed by Claudiu Popa in
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:issue:`18615`.)
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socket
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------
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Functions with timeouts now use a monotonic clock, instead of a system clock.
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(Contributed by Victor Stinner in :issue:`22043`.)
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A new :meth:`socket.sendfile <socket.socket.sendfile>` method allows to
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send a file over a socket by using the high-performance :func:`os.sendfile`
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function on UNIX resulting in uploads being from 2 to 3 times faster than when
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using plain :meth:`socket.send <socket.socket.send>`.
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(Contributed by Giampaolo Rodola' in :issue:`17552`.)
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The :meth:`socket.sendall <socket.socket.sendall>` method no longer resets the
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socket timeout every time bytes are received or sent. The socket timeout is
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now the maximum total duration to send all data.
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(Contributed by Victor Stinner in :issue:`23853`.)
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The *backlog* argument of the :meth:`socket.listen <socket.socket.listen>`
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method is now optional. By default it is set to
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:data:`SOMAXCONN <socket.SOMAXCONN>` or to ``128`` whichever is less.
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(Contributed by Charles-François Natali in :issue:`21455`.)
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ssl
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---
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@@ -1717,29 +1740,6 @@ The :func:`~ssl.match_hostname` function now supports matching of IP addresses.
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(Contributed by Antoine Pitrou in :issue:`23239`.)
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socket
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------
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Functions with timeouts now use a monotonic clock, instead of a system clock.
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(Contributed by Victor Stinner in :issue:`22043`.)
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A new :meth:`socket.sendfile <socket.socket.sendfile>` method allows to
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send a file over a socket by using the high-performance :func:`os.sendfile`
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function on UNIX resulting in uploads being from 2 to 3 times faster than when
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using plain :meth:`socket.send <socket.socket.send>`.
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(Contributed by Giampaolo Rodola' in :issue:`17552`.)
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The :meth:`socket.sendall <socket.socket.sendall>` method no longer resets the
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socket timeout every time bytes are received or sent. The socket timeout is
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now the maximum total duration to send all data.
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(Contributed by Victor Stinner in :issue:`23853`.)
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The *backlog* argument of the :meth:`socket.listen <socket.socket.listen>`
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method is now optional. By default it is set to
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:data:`SOMAXCONN <socket.SOMAXCONN>` or to ``128`` whichever is less.
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(Contributed by Charles-François Natali in :issue:`21455`.)
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sqlite3
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-------
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@@ -1890,33 +1890,6 @@ created by :keyword:`async def` functions.
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(Contributed by Yury Selivanov in :issue:`24400`.)
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urllib
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------
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A new
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:class:`request.HTTPPasswordMgrWithPriorAuth <urllib.request.HTTPPasswordMgrWithPriorAuth>`
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class allows HTTP Basic Authentication credentials to be managed so as to
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eliminate unnecessary ``401`` response handling, or to unconditionally send
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credentials on the first request in order to communicate with servers that
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return a ``404`` response instead of a ``401`` if the ``Authorization`` header
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is not sent. (Contributed by Matej Cepl in :issue:`19494` and Akshit Khurana in
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:issue:`7159`.)
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A new *quote_via* argument for the
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:func:`parse.urlencode <urllib.parse.urlencode>`
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function provides a way to control the encoding of query parts if needed.
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(Contributed by Samwyse and Arnon Yaari in :issue:`13866`.)
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The :func:`request.urlopen <urllib.request.urlopen>` function accepts an
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:class:`ssl.SSLContext` object as a *context* argument, which will be used for
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the HTTPS connection. (Contributed by Alex Gaynor in :issue:`22366`.)
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The :func:`parse.urljoin <urllib.parse.urljoin>` was updated to use the
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:rfc:`3986` semantics for the resolution of relative URLs, rather than
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:rfc:`1808` and :rfc:`2396`.
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(Contributed by Demian Brecht and Senthil Kumaran in :issue:`22118`.)
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unicodedata
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-----------
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@@ -1967,6 +1940,33 @@ It is no longer necessary to explicitly pass ``create=True`` to the
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(Contributed by Kushal Das in :issue:`17660`.)
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urllib
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------
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A new
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:class:`request.HTTPPasswordMgrWithPriorAuth <urllib.request.HTTPPasswordMgrWithPriorAuth>`
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class allows HTTP Basic Authentication credentials to be managed so as to
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eliminate unnecessary ``401`` response handling, or to unconditionally send
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credentials on the first request in order to communicate with servers that
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return a ``404`` response instead of a ``401`` if the ``Authorization`` header
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is not sent. (Contributed by Matej Cepl in :issue:`19494` and Akshit Khurana in
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:issue:`7159`.)
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A new *quote_via* argument for the
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:func:`parse.urlencode <urllib.parse.urlencode>`
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function provides a way to control the encoding of query parts if needed.
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(Contributed by Samwyse and Arnon Yaari in :issue:`13866`.)
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The :func:`request.urlopen <urllib.request.urlopen>` function accepts an
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:class:`ssl.SSLContext` object as a *context* argument, which will be used for
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the HTTPS connection. (Contributed by Alex Gaynor in :issue:`22366`.)
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The :func:`parse.urljoin <urllib.parse.urljoin>` was updated to use the
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:rfc:`3986` semantics for the resolution of relative URLs, rather than
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:rfc:`1808` and :rfc:`2396`.
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(Contributed by Demian Brecht and Senthil Kumaran in :issue:`22118`.)
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wsgiref
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-------
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