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| author | Mark Shannon <mark@hotpy.org> | 2021-04-30 08:50:28 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-04-30 08:50:28 (GMT) |
| commit | 069e81ab3da46c441335ca762c4333b7bd91861d (patch) | |
| tree | 02716907f4513a812cf2c72309cc4e6f133b3ab3 /Misc | |
| parent | 2abbd8f2add5e80b86a965625b9a77ae94a101cd (diff) | |
| download | cpython-069e81ab3da46c441335ca762c4333b7bd91861d.zip cpython-069e81ab3da46c441335ca762c4333b7bd91861d.tar.gz cpython-069e81ab3da46c441335ca762c4333b7bd91861d.tar.bz2 | |
bpo-43977: Use tp_flags for collection matching (GH-25723)
* Add Py_TPFLAGS_SEQUENCE and Py_TPFLAGS_MAPPING, add to all relevant standard builtin classes.
* Set relevant flags on collections.abc.Sequence and Mapping.
* Use flags in MATCH_SEQUENCE and MATCH_MAPPING opcodes.
* Inherit Py_TPFLAGS_SEQUENCE and Py_TPFLAGS_MAPPING.
* Add NEWS
* Remove interpreter-state map_abc and seq_abc fields.
Diffstat (limited to 'Misc')
| -rw-r--r-- | Misc/NEWS.d/next/Core and Builtins/2021-04-29-17-40-25.bpo-43977.FrQhge.rst | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-04-29-17-40-25.bpo-43977.FrQhge.rst b/Misc/NEWS.d/next/Core and Builtins/2021-04-29-17-40-25.bpo-43977.FrQhge.rst new file mode 100644 index 0000000..038d739 --- /dev/null +++ b/Misc/NEWS.d/next/Core and Builtins/2021-04-29-17-40-25.bpo-43977.FrQhge.rst @@ -0,0 +1,2 @@ +Use :c:member:`~PyTypeObject.tp_flags` on the class object to determine if the subject is a sequence +or mapping when pattern matching. Avoids the need to import :mod:`collections.abc` when pattern matching. |