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gh-148874: add flag to CALL to skip periodic check in with #149019

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34535ba
gh-148874: add flag to `CALL` to skip periodic check in `with`
NekoAsakura Apr 24, 2026
cceb8db
fixup
NekoAsakura Apr 26, 2026
6a07b77
Merge branch 'main' into gh-148874/with-signal-exit-skip
NekoAsakura Apr 26, 2026
658c05f
address review feedback
NekoAsakura Apr 28, 2026
0237f8e
Merge branch 'main' into gh-148874/with-signal-exit-skip
NekoAsakura Apr 28, 2026
7262c62
Merge branch 'main' into gh-148874/with-signal-exit-skip
NekoAsakura Apr 29, 2026
40fc50c
Update Doc/library/dis.rst
NekoAsakura Apr 30, 2026
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6 changes: 5 additions & 1 deletion Doc/library/dis.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -77,7 +77,7 @@ the following command can be used to display the disassembly of
<BLANKLINE>
3 LOAD_GLOBAL 1 (len + NULL)
LOAD_FAST_BORROW 0 (alist)
CALL 1
CALL 3 (1)
RETURN_VALUE

(The "2" is a line number).
Expand Down Expand Up @@ -1601,6 +1601,10 @@ iterations of the loop.
.. versionchanged:: 3.13
Calls with keyword arguments are now handled by :opcode:`CALL_KW`.

.. versionchanged:: next
``argc`` is now the oparg shifted right by one. The low bit indicates
that no interrupt check is made after the call


.. opcode:: CALL_KW (argc)

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3 changes: 2 additions & 1 deletion Include/internal/pycore_magic_number.h
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Expand Up @@ -296,6 +296,7 @@ Known values:
Python 3.15a8 3663 (Merge GET_ITER and GET_YIELD_FROM_ITER. Modify SEND to make it a bit more like FOR_ITER)
Python 3.15a8 3664 (Fix __qualname__ for __annotate__ functions)
Python 3.15a8 3665 (Add FOR_ITER_VIRTUAL and GET_ITER specializations)
Python 3.15a9 3666 (Pack CALL oparg as (argcount<<1) | interruptible; gh-148874)
Python 3.16 will start with 3700
Expand All @@ -309,7 +310,7 @@ PC/launcher.c must also be updated.
*/

#define PYC_MAGIC_NUMBER 3665
#define PYC_MAGIC_NUMBER 3666
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@markshannon markshannon Apr 30, 2026

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This might need bumping again

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@NekoAsakura NekoAsakura Apr 30, 2026

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I think I already bumped it. Current upstream HEAD:

cpython/Include/internal/pycore_magic_number.h

Line 312 in 4599335

#define PYC_MAGIC_NUMBER 3665

/* 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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54 changes: 27 additions & 27 deletions Include/internal/pycore_opcode_metadata.h
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