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gh-145854: Replace DELETE_NAME with PUSH_NULL; STORE_NAME #146006

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gh-145854: Replace DELETE_NAME with PUSH_NULL; STORE_NAME #146006

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1f97a49
gh-145854: Replace `DELETE_NAME` with `PUSH_NULL; STORE_NAME`
brijkapadia Mar 16, 2026
ed1b971
📜🤖 Added by blurb_it.
blurb-it[bot] Mar 16, 2026
93d91b8
Updated STORE_FAST; Changed magic number; Added test
brijkapadia Mar 16, 2026
68a9599
Merge branch 'main' into delete-name
brijkapadia Mar 19, 2026
68383f5
Update generated files and magic number
brijkapadia Mar 19, 2026
6adc1d0
Merge branch 'main' into delete-name
brijkapadia Mar 27, 2026
0bbfa52
Update generated files/magic number
brijkapadia Mar 27, 2026
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8 changes: 1 addition & 7 deletions Doc/library/dis.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -1031,12 +1031,6 @@ iterations of the loop.
The compiler tries to use :opcode:`STORE_FAST` or :opcode:`STORE_GLOBAL` if possible.


.. opcode:: DELETE_NAME (namei)

Implements ``del name``, where *namei* is the index into :attr:`~codeobject.co_names`
attribute of the :ref:`code object <code-objects>`.


.. opcode:: UNPACK_SEQUENCE (count)

Unpacks ``STACK[-1]`` into *count* individual values, which are put onto the stack
Expand Down Expand Up @@ -1094,7 +1088,7 @@ iterations of the loop.

.. opcode:: DELETE_GLOBAL (namei)

Works as :opcode:`DELETE_NAME`, but deletes a global name.
Deletes a global name.


.. opcode:: LOAD_CONST (consti)
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3 changes: 2 additions & 1 deletion Include/internal/pycore_magic_number.h
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Expand Up @@ -292,6 +292,7 @@ Known values:
Python 3.15a4 3659 (Add CALL_FUNCTION_EX specialization)
Python 3.15a4 3660 (Change generator preamble code)
Python 3.15a4 3661 (Lazy imports IMPORT_NAME opcode changes)
Python 3.15a7+ 3662 (Replace DELETE_FAST with PUSH_NULL; STORE_FAST)


Python 3.16 will start with 3700
Expand All @@ -305,7 +306,7 @@ PC/launcher.c must also be updated.

*/

#define PYC_MAGIC_NUMBER 3661
#define PYC_MAGIC_NUMBER 3662
/* This is equivalent to converting PYC_MAGIC_NUMBER to 2 bytes
(little-endian) and then appending b'\r\n'. */
#define PYC_MAGIC_NUMBER_TOKEN \
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13 changes: 3 additions & 10 deletions Include/internal/pycore_opcode_metadata.h
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