-What's New in IDLE 3.5.1?
-=========================
-*Release date: 2015-09-13*
+What's New in IDLE 3.6.0a1?
+===========================
+*Release date: 2017?*
+ - Issue #24820: IDLE now has an 'IDLE Dark' built-in text color theme.
+ It is more or less IDLE Classic inverted, with a cobalt blue background.
+ Strings, comments, keywords, ... are still green, red, orange, ... .
+ Selecting it displays the following warning and solution.
+ "IDLE Dark is new in October, 2015. Trying to run earlier versions
+ of IDLE with it selected will disable colorizing, or worse.
+ If you might ever run an earlier release of IDLE, then before
+ exiting this version, either switch to another theme or hit the
+ 'Save as New Custom Theme' button. The latter requires a new name,
+ such as 'Custom Dark', but the custom theme will work with any IDLE
+ release, and can be modified."
+
+ - Issue #25224: README.txt is now an idlelib index for IDLE developers and
+ curious users. The previous user content is now in the IDLE doc and is
+ redundant. IDLE now means 'Integrated Development and Learning Environment'.
+
+ - Issue #24820: Users can now set breakpoint colors in
+ Settings -> Custom Highlighting. Original patch by Mark Roseman.
+
- Issue #24972: Inactive selection background now matches active selection
background, as configured by user, on all systems. Found items are now
always highlighted on Windows. Initial patch by Mark Roseman.
function is blocking to generate very good quality entropy, os.urandom()
doesn't need such high-quality entropy.
+- Issue #9232: Modify Python's grammar to allow trailing commas in the
+ argument list of a function declaration. For example, "def f(\*, a =
+ 3,): pass" is now legal. Patch from Mark Dickinson.
+
+- Issue #24965: Implement PEP 498 "Literal String Interpolation". This
+ allows you to embed expressions inside f-strings, which are
+ converted to normal strings at run time. Given x=3, then
+ f'value={x}' == 'value=3'. Patch by Eric V. Smith.
+
+Library
+-------
+
+- Issue #25304: Add asyncio.run_coroutine_threadsafe(). This lets you
+ submit a coroutine to a loop from another thread, returning a
+ concurrent.futures.Future. By Vincent Michel.
+
+- Issue #25232: Fix CGIRequestHandler to split the query from the URL at the
+ first question mark (?) rather than the last. Patch from Xiang Zhang.
+
+- Issue #24657: Prevent CGIRequestHandler from collapsing slashes in the
+ query part of the URL as if it were a path. Patch from Xiang Zhang.
+
+- Issue #25287: Don't add crypt.METHOD_CRYPT to crypt.methods if it's not
+ supported. Check if it is supported, it may not be supported on OpenBSD for
+ example.
+
+- Issue #23600: Default implementation of tzinfo.fromutc() was returning
+ wrong results in some cases.
+
+- Issue #25203: Failed readline.set_completer_delims() no longer left the
+ module in inconsistent state.
+
+- Issue #25011: rlcomplete now omits private and special attribute names unless
+ the prefix starts with underscores.
+
+- Issue #25209: rlcomplete now can add a space or a colon after completed keyword.
+
+- Issue #22241: timezone.utc name is now plain 'UTC', not 'UTC-00:00'.
+
+- Issue #23517: fromtimestamp() and utcfromtimestamp() methods of
+ datetime.datetime now round microseconds to nearest with ties going to
+ nearest even integer (ROUND_HALF_EVEN), as round(float), instead of rounding
+ towards -Infinity (ROUND_FLOOR).
+
+- Issue #23552: Timeit now warns when there is substantial (4x) variance
+ between best and worst times. Patch from Serhiy Storchaka.
+
+- Issue #24633: site-packages/README -> README.txt.
+
+- Issue #24879: help() and pydoc can now list named tuple fields in the
+ order they were defined rather than alphabetically. The ordering is
+ determined by the _fields attribute if present.
+
+- Issue #24874: Improve speed of itertools.cycle() and make its
+ pickle more compact.
+
+- Fix crash in itertools.cycle.__setstate__() when the first argument wasn't
+ a list.
+
+- Issue #20059: urllib.parse raises ValueError on all invalid ports.
+ Patch by Martin Panter.
+
+- Issue #24360: Improve __repr__ of argparse.Namespace() for invalid
+ identifiers. Patch by Matthias Bussonnier.
+
+- Issue #23426: run_setup was broken in distutils.
+ Patch from Alexander Belopolsky.
+
+- Issue #13938: 2to3 converts StringTypes to a tuple. Patch from Mark Hammond.
+
+- Issue #2091: open() accepted a 'U' mode string containing '+', but 'U' can
+ only be used with 'r'. Patch from Jeff Balogh and John O'Connor.
+
+- Issue #8585: improved tests for zipimporter2. Patch from Mark Lawrence.
+
+- Issue #18622: unittest.mock.mock_open().reset_mock would recurse infinitely.
+ Patch from Nicola Palumbo and Laurent De Buyst.
+
+- Issue #24426: Fast searching optimization in regular expressions now works
+ for patterns that starts with capturing groups. Fast searching optimization
+ now can't be disabled at compile time.
+
+- Issue #23661: unittest.mock side_effects can now be exceptions again. This
+ was a regression vs Python 3.4. Patch from Ignacio Rossi
+
+- Issue #13248: Remove deprecated inspect.getargspec and inspect.getmoduleinfo
+ functions.
+
+IDLE
+----
+
++- Issue #24820: IDLE now has an 'IDLE Dark' built-in text color theme.
++ It is more or less IDLE Classic inverted, with a cobalt blue background.
++ Strings, comments, keywords, ... are still green, red, orange, ... .
++ Selecting it displays the following warning and solution.
++ "IDLE Dark is new in October, 2015. Trying to run earlier versions
++ of IDLE with it selected will disable colorizing, or worse.
++ If you might ever run an earlier release of IDLE, then before
++ exiting this version, either switch to another theme or hit the
++ 'Save as New Custom Theme' button. The latter requires a new name,
++ such as 'Custom Dark', but the custom theme will work with any IDLE
++ release, and can be modified."
++
++- Issue #25224: README.txt is now an idlelib index for IDLE developers and
++ curious users. The previous user content is now in the IDLE doc and is
++ redundant. IDLE now means 'Integrated Development and Learning Environment'.
++
++- Issue #24820: Users can now set breakpoint colors in
++ Settings -> Custom Highlighting. Original patch by Mark Roseman.
++
+- Issue #24972: Inactive selection background now matches active selection
+ background, as configured by user, on all systems. Found items are now
+ always highlighted on Windows. Initial patch by Mark Roseman.
+
+- Issue #24570: Idle: make calltip and completion boxes appear on Macs
+ affected by a tk regression. Initial patch by Mark Roseman.
+
+- Issue #24988: Idle ScrolledList context menus (used in debugger)
+ now work on Mac Aqua. Patch by Mark Roseman.
+
+- Issue #24801: Make right-click for context menu work on Mac Aqua.
+ Patch by Mark Roseman.
+
+- Issue #25173: Associate tkinter messageboxes with a specific widget.
+ For Mac OSX, make them a 'sheet'. Patch by Mark Roseman.
+
+- Issue #25198: Enhance the initial html viewer now used for Idle Help.
+ * Properly indent fixed-pitch text (patch by Mark Roseman).
+ * Give code snippet a very Sphinx-like light blueish-gray background.
+ * Re-use initial width and height set by users for shell and editor.
+ * When the Table of Contents (TOC) menu is used, put the section header
+ at the top of the screen.
+
+- Issue #25225: Condense and rewrite Idle doc section on text colors.
+
+- Issue #21995: Explain some differences between IDLE and console Python.
+
+- Issue #22820: Explain need for *print* when running file from Idle editor.
+
+- Issue #25224: Doc: augment Idle feature list and no-subprocess section.
+
+- Issue #25219: Update doc for Idle command line options.
+ Some were missing and notes were not correct.
+
+- Issue #24861: Most of idlelib is private and subject to change.
+ Use idleib.idle.* to start Idle. See idlelib.__init__.__doc__.
+
+- Issue #25199: Idle: add synchronization comments for future maintainers.
+
+- Issue #16893: Replace help.txt with help.html for Idle doc display.
+ The new idlelib/help.html is rstripped Doc/build/html/library/idle.html.
+ It looks better than help.txt and will better document Idle as released.
+ The tkinter html viewer that works for this file was written by Rose Roseman.
+ The now unused EditorWindow.HelpDialog class and helt.txt file are deprecated.
+
+- Issue #24199: Deprecate unused idlelib.idlever with possible removal in 3.6.
+
+- Issue #24782: In Idle extension config dialog, replace tabs with sorted list.
+ Patch by Mark Roseman.
+
+- Issue #24790: Remove extraneous code (which also create 2 & 3 conflicts).
+
+Documentation
+-------------
+
+- Issue #24952: Clarify the default size argument of stack_size() in
+ the "threading" and "_thread" modules. Patch from Mattip.
+
+Tests
+-----
+
+- Issue #25188: Add -P/--pgo to test.regrtest to suppress error output when
+ running the test suite for the purposes of a PGO build. Initial patch by
+ Alecsandru Patrascu.
+
+- Issue #22806: Add ``python -m test --list-tests`` command to list tests.
+
+- Issue #18174: ``python -m test --huntrleaks ...`` now also checks for leak of
+ file descriptors. Patch written by Richard Oudkerk.
+
+- Issue #25260: Fix ``python -m test --coverage`` on Windows. Remove the
+ list of ignored directories.
+
+- PCbuild\rt.bat now accepts an unlimited number of arguments to pass along
+ to regrtest.py. Previously there was a limit of 9.
+
+Build
+-----
+
+- Issue #24986: It is now possible to build Python on Windows without errors
+ when external libraries are not available.
+
+Windows
+-------
+
+- Issue #25022: Removed very outdated PC/example_nt/ directory.
+
+
+What's New in Python 3.5.1 release candidate 1?
+===============================================
+
+Release date: TBA
+
+Core and Builtins
+-----------------
+
- Issue #25182: The stdprinter (used as sys.stderr before the io module is
imported at startup) now uses the backslashreplace error handler.
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