Nikita Sobolev 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								2f4db5a04d 
								
							 
						 
						
							
							
								
								gh-118803: Remove ByteString from typing and collections.abc ( #118804 )  
							
							
							
						 
						
							2024-05-09 00:37:55 +01:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Erlend E. Aasland 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								ca62ffd1a5 
								
							 
						 
						
							
							
								
								gh-116303: Skip tests if C recursion limit is unavailable (GH-117368)  
							
							... 
							
							
							
							The test suite fetches the C recursion limit from the _testcapi
extension module. Test extension modules can be disabled using the
--disable-test-modules configure option. 
							
						 
						
							2024-04-08 14:45:25 +02:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Mike Zimin 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								9d1a353230 
								
							 
						 
						
							
							
								
								gh-114894: add array.array.clear() method ( #114919 )  
							
							... 
							
							
							
							Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: AN Long <aisk@users.noreply.github.com>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com> 
							
						 
						
							2024-02-10 07:59:46 -08:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Serhiy Storchaka 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								c74e9fb189 
								
							 
						 
						
							
							
								
								gh-110275: Named tuple's __replace__() now raises TypeError for invalid arguments (GH-110299)  
							
							
							
						 
						
							2023-12-04 13:30:32 +02:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Alex Waygood 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								c527eb1c2a 
								
							 
						 
						
							
							
								
								gh-91896: Revert some very noisy DeprecationWarnings for ByteString ( #104424 )  
							
							
							
						 
						
							2023-05-13 09:55:35 +01:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Alex Waygood 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								f0f5bb3204 
								
							 
						 
						
							
							
								
								gh-91896: Improve visibility of ByteString deprecation warnings ( #104294 )  
							
							
							
						 
						
							2023-05-11 23:01:31 -07:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Shantanu 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								09b7695f12 
								
							 
						 
						
							
							
								
								gh-91896: Deprecate collections.abc.ByteString ( #102096 )  
							
							... 
							
							
							
							Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com> 
							
						 
						
							2023-05-04 09:39:33 -07:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Jelle Zijlstra 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								04f6733275 
								
							 
						 
						
							
							
								
								gh-102500: Implement PEP 688 ( #102521 )  
							
							... 
							
							
							
							Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com> 
							
						 
						
							2023-05-04 07:59:46 -07:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Rodolfo M. Pereira 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								8291ae31dd 
								
							 
						 
						
							
							
								
								GH-103805: Lib test f541 linting issue fix ( #103812 )  
							
							... 
							
							
							
							This PR makes some minor linting adjustments to the Lib/test module
caught by [ruff](https://github.com/charliermarsh/ruff ). The adjustments
are all related to the `F541 f-string without any placeholders` issue.
Issue: https://github.com/python/cpython/issues/103805 
<!-- gh-issue-number: gh-103805 -->
* Issue: gh-103805
<!-- /gh-issue-number -->
---------
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org> 
							
						 
						
							2023-04-24 23:24:49 +00:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Nikita Sobolev 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								a309ad9f76 
								
							 
						 
						
							
							
								
								gh-98513: Test abstract methods of some collections types ( #98516 )  
							
							
							
						 
						
							2022-11-07 17:48:23 -08:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Nikita Sobolev 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								29e027c3e6 
								
							 
						 
						
							
							
								
								gh-98512: Add more tests for ValuesView ( #98515 )  
							
							
							
						 
						
							2022-11-02 19:10:42 -07:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Mark Shannon 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								76449350b3 
								
							 
						 
						
							
							
								
								GH-91079: Decouple C stack overflow checks from Python recursion checks. (GH-96510)  
							
							
							
						 
						
							2022-10-05 01:34:03 +01:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Bar Harel 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								30a43586f0 
								
							 
						 
						
							
							
								
								bpo-39264: Fix UserDict.get() to account for __missing__() (GH-17910)  
							
							... 
							
							
							
							Here's the patch according to the discussion at the [Python-Dev mailing list](https://mail.python.org/archives/list/python-dev@python.org/thread/SDXOEMAEM6KQ3CQCJVBVRT5QNSPAVU6X/ ).
UserDict.get() will match dict's behavior and not call `__missing__`.
Automerge-Triggered-By: GH:rhettinger 
							
						 
						
							2022-05-10 14:23:45 -07:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Serhiy Storchaka 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								9d20e1af40 
								
							 
						 
						
							
							
								
								gh-92107: Add tests that subscription works on arbitrary named tuple types (GH-92304)  
							
							
							
						 
						
							2022-05-04 17:06:50 +03:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Nikita Sobolev 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								37eab55ac9 
								
							 
						 
						
							
							
								
								bpo-46387: test all pickle protos in test_field_descriptor in test_collections (GH-30614)  
							
							
							
						 
						
							2022-01-15 22:33:28 -06:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Carl Friedrich Bolz-Tereick 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								4fad314246 
								
							 
						 
						
							
							
								
								bpo-45859: Mark test_field_descriptor in test_collections as CPython-only (GH-29691)  
							
							
							
						 
						
							2021-11-22 08:44:57 -06:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Christian Clauss 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								745c9d9dfc 
								
							 
						 
						
							
							
								
								Fix typos in the Lib directory (GH-28775)  
							
							... 
							
							
							
							Fix typos in the Lib directory as identified by codespell.
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu> 
							
						 
						
							2021-10-06 16:13:48 -07:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Serhiy Storchaka 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								a856364cc9 
								
							 
						 
						
							
							
								
								bpo-45229: Use doctest.DocTestSuite instead of run_doctest (GH-28468)  
							
							... 
							
							
							
							Alo use load_tests() for adding tests. 
							
						 
						
							2021-09-20 11:36:57 +03:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Dennis Sweeney 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								c878f5d817 
								
							 
						 
						
							
							
								
								bpo-44704: Make Set._hash consistent with frozenset.__hash__ (GH-27281)  
							
							
							
						 
						
							2021-07-21 18:49:03 -05:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Raymond Hettinger 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								8c598dbb94 
								
							 
						 
						
							
							
								
								bpo-25478: Add total() method to collections.Counter (GH-25829)  
							
							
							
						 
						
							2021-05-02 20:19:51 -07:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Mark Shannon 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								33ec88ac81 
								
							 
						 
						
							
							
								
								bpo-43977: Make sure that tp_flags for pattern matching are inherited correctly. (GH-25813)  
							
							
							
						 
						
							2021-05-03 00:38:22 +01:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Karthikeyan Singaravelan 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								b8509ffa82 
								
							 
						 
						
							
							
								
								bpo-43825: Fix deprecation warnings in test_cmd_line and test_collections (GH-25380)  
							
							... 
							
							
							
							* Fix deprecation warnings due to invalid escape sequences.
* Use self.assertEqual instead of deprecated self.assertEquals. 
							
						 
						
							2021-04-14 13:45:22 +02:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Stepan Sindelar 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								453074c8da 
								
							 
						 
						
							
							
								
								Fix broken test for MutableSet.pop() (GH-25209)  
							
							... 
							
							
							
							Changes the test to not assert concrete result of pop, but just that it
was an item from the set, and that the set shrunk by one. 
							
						 
						
							2021-04-07 16:31:55 -07:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Kamil Turek 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								9923df9641 
								
							 
						 
						
							
							
								
								bpo-43245: Add keyword argument support to ChainMap.new_child() (GH-24788)  
							
							
							
						 
						
							2021-03-13 19:15:44 -08:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Brandt Bucher 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								145bf269df 
								
							 
						 
						
							
							
								
								bpo-42128: Structural Pattern Matching (PEP 634) (GH-22917)  
							
							... 
							
							
							
							Co-authored-by: Guido van Rossum <guido@python.org>
Co-authored-by: Talin <viridia@gmail.com>
Co-authored-by: Pablo Galindo <pablogsal@gmail.com> 
							
						 
						
							2021-02-26 14:51:55 -08:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Victor Stinner 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								a3c3ffa68e 
								
							 
						 
						
							
							
								
								bpo-42990: Add __builtins__ attribute to functions (GH-24559)  
							
							... 
							
							
							
							Expose the new PyFunctionObject.func_builtins member in Python as a
new __builtins__ attribute on functions.
Document also the behavior change in What's New in Python 3.10. 
							
						 
						
							2021-02-18 12:35:37 +01:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Raymond Hettinger 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								b6d68aa08b 
								
							 
						 
						
							
							
								
								bpo-43102:  Set namedtuple __new__'s internal builtins to a dict. (GH-24439)  
							
							
							
						 
						
							2021-02-04 15:52:16 -08:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Andreas Poehlmann 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								0be9ce305f 
								
							 
						 
						
							
							
								
								bpo-42487: don't call __getitem__ of underlying maps in ChainMap.__iter__ (GH-23534)  
							
							
							
						 
						
							2020-11-30 08:34:15 -08:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Richard Levasseur 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								68f68fa423 
								
							 
						 
						
							
							
								
								Clarify that Set._from_iterable is not required to be a classmethod. (GH-23272)  
							
							
							
						 
						
							2020-11-21 11:56:24 -08:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Raymond Hettinger 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								b7d79b4f36 
								
							 
						 
						
							
							
								
								bpo-40755: Add rich comparisons to Counter (GH-20548)  
							
							
							
						 
						
							2020-05-31 14:57:42 -07:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Raymond Hettinger 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								60398512c8 
								
							 
						 
						
							
							
								
								bpo-40755: Add missing multiset operations to Counter() (GH-20339)  
							
							
							
						 
						
							2020-05-28 08:35:46 -07:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Ammar Askar 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								a86b522d8f 
								
							 
						 
						
							
							
								
								bpo-40277: Add a repr() to namedtuple's _tuplegetter to aid with introspection (GH-19537)  
							
							
							
						 
						
							2020-04-14 23:36:08 -07:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Curtis Bucher 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								0c5ad54997 
								
							 
						 
						
							
							
								
								Fix bug in test_collections.py ( #19221 )  
							
							... 
							
							
							
							Test in TestChainMap() line 257 did not properly check union behavior. 
							
						 
						
							2020-03-30 09:50:57 -07:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Curtis Bucher 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								f393b2c588 
								
							 
						 
						
							
							
								
								bpo-36144: Add PEP 584 operators to collections.ChainMap ( #18832 )  
							
							... 
							
							
							
							* Update ChainMap to include | and |=
Created __ior__, __or__ and __ror__ methods in ChainMap class.
* Update ACKS
* Update docs
* Update test_collections.py to include test_issue584().
Added testing for | and |= operators for ChainMap objects.
* Update test_union_operators
Renamed test_union operators, fixed errors and style problems raised by brandtbucher.
* Update test_union_operators in TestChainMap
Added testing for union operator between ChainMap and iterable of key-value pairs.
* Update test_union operators in test_collections.py
Gave more descriptive variable names and eliminated unnecessary tmp variable.
* Update test_union_operators in test_collections.py
Added cm3
* Check .maps rather than Chainmap equality.
* Add news entry
* Update Lib/test/test_collections.py
Co-Authored-By: Brandt Bucher <brandtbucher@gmail.com>
* Removed whitespace
* Added Guido's changes
* Fixed Docs
* Removed whitespace
Co-authored-by: Brandt Bucher <brandtbucher@gmail.com> 
							
						 
						
							2020-03-23 12:02:05 -07:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Raymond Hettinger 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								1ca8fb187e 
								
							 
						 
						
							
							
								
								Add tests and design notes for Counter subset/superset operations. (GH-17625)  
							
							
							
						 
						
							2019-12-16 01:54:14 -08:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Min ho Kim 
								
							 
						 
						
							
							
							
							
								
							
							
								39d87b5471 
								
							 
						 
						
							
							
								
								Fix typos mostly in comments, docs and test names (GH-15209)  
							
							
							
						 
						
							2019-08-30 16:21:19 -04:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Serhiy Storchaka 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								7d44e7a456 
								
							 
						 
						
							
							
								
								bpo-37685: Use singletons ALWAYS_EQ and NEVER_EQ in more tests. (GH-15167)  
							
							
							
						 
						
							2019-08-08 08:43:18 +03:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Min ho Kim 
								
							 
						 
						
							
							
							
							
								
							
							
								c4cacc8c5e 
								
							 
						 
						
							
							
								
								Fix typos in comments, docs and test names ( #15018 )  
							
							... 
							
							
							
							* Fix typos in comments, docs and test names
* Update test_pyparse.py
account for change in string length
* Apply suggestion: splitable -> splittable
Co-Authored-By: Terry Jan Reedy <tjreedy@udel.edu>
* Apply suggestion: splitable -> splittable
Co-Authored-By: Terry Jan Reedy <tjreedy@udel.edu>
* Apply suggestion: Dealloccte -> Deallocate
Co-Authored-By: Terry Jan Reedy <tjreedy@udel.edu>
* Update posixmodule checksum.
* Reverse idlelib changes. 
							
						 
						
							2019-07-30 18:16:13 -04:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Victor Stinner 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								8f4ef3b019 
								
							 
						 
						
							
							
								
								Remove unused imports in tests (GH-14518)  
							
							
							
						 
						
							2019-07-01 18:28:25 +02:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Bar Harel 
								
							 
						 
						
							
							
							
							
								
							
							
								f4e1babf44 
								
							 
						 
						
							
							
								
								bpo-27141: Fix collections.UserList and UserDict shallow copy. (GH-4094)  
							
							
							
						 
						
							2019-05-19 16:57:13 +03:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Raymond Hettinger 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								23581c018f 
								
							 
						 
						
							
							
								
								bpo-36321: Fix misspelled attribute in namedtuple() (GH-12375)  
							
							
							
						 
						
							2019-03-18 00:27:39 -07:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Joe Jevnik 
								
							 
						 
						
							
							
							
							
								
							
							
								f36f89257b 
								
							 
						 
						
							
							
								
								bpo-36068: Make _tuplegetter objects serializable (GH-11981)  
							
							
							
						 
						
							2019-02-21 13:00:40 -08:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Raymond Hettinger 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								407c734326 
								
							 
						 
						
							
							
								
								bpo-36057 Update docs and tests for ordering in collections.Counter [no behavior change] ( #11962 )  
							
							... 
							
							
							
							* Add tests for Counter order.  No behavior change.
* Update docs and tests
* Fix doctest output and capitalization 
							
						 
						
							2019-02-21 09:19:00 -08:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Raymond Hettinger 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								86f093f71a 
								
							 
						 
						
							
							
								
								bpo-36060: Document how collections.ChainMap() determines iteration order (GH-11969)  
							
							
							
						 
						
							2019-02-21 09:12:15 -08:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Serhiy Storchaka 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								052b2dfdc9 
								
							 
						 
						
							
							
								
								bpo-32492: Tweak _collections._tuplegetter. (GH-11367)  
							
							... 
							
							
							
							* Replace the docstrings cache with sys.intern().
* Improve tests.
* Unify names of tp_descr_get and tp_descr_set functions. 
							
						 
						
							2018-12-31 14:15:16 +02:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Pablo Galindo 
								
							 
						 
						
							
							
							
							
								
							
							
								3f5fc70c62 
								
							 
						 
						
							
							
								
								bpo-32492: 1.6x speed up in namedtuple attribute access using C fast-path ( #10495 )  
							
							... 
							
							
							
							* bpo-32492: 2.5x speed up in namedtuple attribute access using C fast path
* Add News entry
* fixup! bpo-32492: 2.5x speed up in namedtuple attribute access using C fast path
* Check for tuple in the __get__ of the new descriptor and don't cache the descriptor itself
* Don't inherit from property. Implement GC methods to handle __doc__
* Add a test for the docstring substitution in descriptors
* Update NEWS entry to reflect time against 3.7 branch
* Simplify implementation with argument clinic, better error messages, only __new__
* Use positional-only parameters for the __new__
* Use PyTuple_GET_SIZE and PyTuple_GET_ITEM to tighter the implementation of tuplegetterdescr_get
* Implement __set__ to make tuplegetter a data descriptor
* Use Py_INCREF now that we inline PyTuple_GetItem
* Apply the valid_index() function, saving one test
* Move Py_None test out of the critical path. 
							
						 
						
							2018-12-30 01:24:03 -08:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Srinivas  Thatiparthy (శ్రీనివాస్  తాటిపర్తి) 
								
							 
						 
						
							
							
							
							
								
							
							
								b9498e2367 
								
							 
						 
						
							
							
								
								bpo-35202: Remove unused imports in Lib directory. (GH-10446)  
							
							
							
						 
						
							2018-11-10 09:22:02 +02:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Rémi Lapeyre 
								
							 
						 
						
							
							
							
							
								
							
							
								6531bf6309 
								
							 
						 
						
							
							
								
								bpo-33462: Add __reversed__ to dict and dict views (GH-6827)  
							
							
							
						 
						
							2018-11-06 09:38:54 +09:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Naris R 
								
							 
						 
						
							
							
							
							
								
							
							
								1b5f9c9653 
								
							 
						 
						
							
							
								
								bpo-34427: Fix infinite loop when calling MutableSequence.extend() on self (GH-8813)  
							
							
							
						 
						
							2018-08-30 09:56:14 -07:00 
							
								 
							
							
								 
							
						 
					 
				
					
						
							
								
								
									Raymond Hettinger 
								
							 
						 
						
							
							
								
								
							
							
							
								
							
							
								3793f95f98 
								
							 
						 
						
							
							
								
								bpo-32792: Preserve mapping order in ChainMap() (GH-5586)  
							
							
							
						 
						
							2018-02-11 00:30:31 -08:00