Adds alternate download approach for nuget.exe
Fall back to git.exe if no Python is found. (#2739)
Also check whether git.exe is on PATH if it will be used.
Add support for HOST_PYTHON variable.
Clear internal environment variables used in find_python.bat
Use HOST_PYTHON as the actual Python if it is recent enough.
Adds HOST_PYTHON variable to AppVeyor configuration

(cherry picked from commit 4ed5ad79)

Version v3.6.2

(cherry picked from commit 49f6449e)

instead of failing with SystemError.

Relative import from non-package now fails with ImportError rather than
SystemError.
(cherry picked from commit 8a9cd20e)

* Add section to idlelib/idle-test/README.txt.
* Include check that branches are taken both ways.
* Exclude IDLE-specific code that does not run during unit tests.
(cherry picked from commit 95bebb72)

(cherry picked from commit 50f58163)

backport

(cherry picked from commit 0d0a32fb)

The will help writing dialog improvements and splitting the class into multiple classes.
Original patch by Cheryl Sabella.
(cherry picked from commit 36329a4d)

Initial patch by Louie Lu.
(cherry picked from commit 9b622fb9)

bpo-30731: python.manifest fix

encoder and decoder.
(cherry picked from commit d3aaa2f1)

[3.6] bpo-30899: Add unittests, 100% coverage, for IDLE's two ConfigParser subclasses. (GH-2662) (#2685)

Patch by Louie Lu.
(cherry picked from commit 50c9435c)

Also improve test of config.ConfigChanges.delete_section.
Original patch by Cheryl Sabella.
(cherry picked from commit 6d13b22e)

Patch by Cheryl Sabella.
(cherry picked from commit ba352270)

(cherry picked from commit 5b62b35e)

Based on patch by Victor Stinner.
(cherry picked from commit 64e461be)

called with bytes-like argument..
(cherry picked from commit 1180e5a5)

* Rewrite importlib _get_module_lock(): it is now responsible to hold
  the imp lock directly.
* _find_and_load() now holds the module lock to check if name is in
  sys.modules to prevent a race condition
(cherry picked from commit 4f9a446f)

Handle getattr(copy, 'deepcopy') error in _elementtree module
initialization.
(cherry picked from commit b136f11f)

One is a duplicate, one is set but cannot be altered by users.
Patch by Cheryl Sabella.
(cherry picked from commit aa8d0a24)

multiprocessing.Queue.join_thread() now waits until the thread
completes, even if the thread was started by the same process which
created the queue.

Fix the following warning which occurs randomly when running
test_handle_called_with_mp_queue of test_logging.QueueListenerTest:

Warning -- threading_cleanup() failed to cleanup -1 threads after 4 sec (count: 0, dangling: 1)
(cherry picked from commit 3b69d911)

Patch by Louie Lu.
(cherry picked from commit bb2bae84)

If history-length is set in .inputrc, and the history file is double the
history size (or more), history_get(N) returns NULL, and python
segfaults. Fix that by checking for NULL return value.

It seems that the root cause is incorrect handling of bigger history in
readline, but Python should not segfault even if readline returns
unexpected value.

This issue affects only GNU readline. When using libedit emulation
system history size option does not work.

Tag v3.6.2rc2

(cherry picked from commit 223c7e70)

(cherry picked from commit 24f2e19d)

[3.6] bpo-30779: IDLE -- Factor ConfigChanges class from configdialog, put in config; test. (GH-2612) (#2625)

* In config, put dump test code in a function; run it and unittest in 'if __name__ == '__main__'.
* Add class config.ConfigChanges based on changes_class_v4.py on bpo issue.
* Add class test_config.ChangesTest, partly based on configdialog_tests_v1.py on bpo issue.
* Revise configdialog to use ConfigChanges, mostly as specified in tracker msg297804.
* Revise test_configdialog to match configdialog changes.  All tests pass in both files.
* Remove configdialog functions unused or moved to ConfigChanges.
Cheryl Sabella contributed parts of the patch.
(cherry picked from commit 349abd9e)

(cherry picked from commit 05b72ede)

(cherry picked from commit 0ee32c14)
(cherry picked from commit 0e1f9e8d)

[3.6] bpo-30730: Prevent environment variables injection in subprocess on Windows. (GH-2325) (#2360)

Prevent passing other invalid environment variables and command arguments..
(cherry picked from commit d174d24a)
(cherry picked from commit e7135751)

Free also co_extra->ce_extras, not only co_extra.
(cherry picked from commit 23e7944e)
(cherry picked from commit 26daad4e)

(cherry picked from commit 7526cadd)
(cherry picked from commit d02c8416)