gh-134280: Disable constant folding for ~ with a boolean argument (GH-134982)

This moves the deprecation warning from compile time to run time.

diff --git a/Lib/test/test_peepholer.py b/Lib/test/test_peepholer.py
index 3d7300e14802560ce42a2245f96554082c0a69a0..98629df457460e852b8e99deb379d0ae3ab120cf 100644 (file)
--- a/Lib/test/test_peepholer.py
+++ b/Lib/test/test_peepholer.py
@@ -292,6 +292,7 @@ class TestTranforms(BytecodeTestCase):
             ('---x', 'UNARY_NEGATIVE', None, False, None, None),
             ('~~~x', 'UNARY_INVERT', None, False, None, None),
             ('+++x', 'CALL_INTRINSIC_1', intrinsic_positive, False, None, None),
+            ('~True', 'UNARY_INVERT', None, False, None, None),
         ]
 
         for (

diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2025-05-31-19-24-54.gh-issue-134280.NDVbzY.rst b/Misc/NEWS.d/next/Core_and_Builtins/2025-05-31-19-24-54.gh-issue-134280.NDVbzY.rst
new file mode 100644 (file)
index 0000000..f822721
--- /dev/null
+++ b/Misc/NEWS.d/next/Core_and_Builtins/2025-05-31-19-24-54.gh-issue-134280.NDVbzY.rst
@@ -0,0 +1,2 @@
+Disable constant folding for ``~`` with a boolean argument.
+This moves the deprecation warning from compile time to runtime.

diff --git a/Python/flowgraph.c b/Python/flowgraph.c
index 2adc8c84d83974e9bea5262018810046728f66ed..1cb6f03169e3b5083d38cd00a946fa74bdea5f21 100644 (file)
--- a/Python/flowgraph.c
+++ b/Python/flowgraph.c
@@ -1892,6 +1892,10 @@ eval_const_unaryop(PyObject *operand, int opcode, int oparg)
             result = PyNumber_Negative(operand);
             break;
         case UNARY_INVERT:
+            // XXX: This should be removed once the ~bool depreciation expires.
+            if (PyBool_Check(operand)) {
+                return NULL;
+            }
             result = PyNumber_Invert(operand);
             break;
         case UNARY_NOT: {