merge 3.5 (#27773)

diff --cc Misc/NEWS
index 59fc57a05de151c8735b2a018bcec859ba67cce9,4a0d84c9efce91148d41a817c7011e7ce7014b03..60a248bd3c507e7b9a77f07b0cba112fc2600bbe
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -69,38 -34,10 +69,40 @@@ Core and Builtin
  Library
  -------
  
 +- Issue #27736: Prevent segfault after interpreter re-initialization due
 +  to ref count problem introduced in code for Issue #27038 in 3.6.0a3.
 +  Patch by Xiang Zhang.
 +
 +- Issue #12345: Add mathemathical constant tau to math and cmath. See also
 +  PEP 628.
 +
 +- Issue #26823: traceback.StackSummary.format now abbreviates large sections of
 +  repeated lines as "[Previous line repeated {count} more times]" (this change
 +  then further affects other traceback display operations in the module). Patch
 +  by Emanuel Barry.
 +
 +- Issue #27664: Add to concurrent.futures.thread.ThreadPoolExecutor()
 +  the ability to specify a thread name prefix.
 +
 +- Issue #27181: Add geometric_mean and harmonic_mean to statistics module.
 +
 +- Issue #27573: code.interact now prints an message when exiting.
 +
 +- Issue #6422: Add autorange method to timeit.Timer objects.
 +
+ - Issue #27773: Correct some memory management errors server_hostname in _ssl.wrap_socket().
+ 
  - Issue #26750: unittest.mock.create_autospec() now works properly for
 -  subclasses of property() and other data descriptors.
 +  subclasses of property() and other data descriptors.  Removes the never
 +  publicly used, never documented unittest.mock.DescriptorTypes tuple.
 +
 +- Issue #26754: Undocumented support of general bytes-like objects
 +  as path in compile() and similar functions is now deprecated.
 +
 +- Issue #26800: Undocumented support of general bytes-like objects
 +  as paths in os functions is now deprecated.
 +
 +- Issue #27661: Added tzinfo keyword argument to datetime.combine.
  
  - In the curses module, raise an error if window.getstr() or window.instr() is
    passed a negative value.

diff --cc Modules/_ssl.c
Simple merge