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[3.12] gh-132002: Fix crash of ContextVar on unhashable str subtype (GH-132003) (#132008)

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gh-132002: Fix crash of `ContextVar` on unhashable `str` subtype (GH-132003)
(cherry picked from commit ab2a3dda1d)

Co-authored-by: sobolevn <mail@sobolevn.me>
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Miss Islington (bot) 2025-04-02 14:05:30 +02:00 • committed by GitHub
parent afb3f33256
commit b3cf1f27e9
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3 changed files with 17 additions and 7 deletions
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13
Python/context.c
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@ -821,20 +821,19 @@ contextvar_new(PyObject *name, PyObject *def)
return NULL;
}
var->var_hash = contextvar_generate_hash(var, name);
if (var->var_hash == -1) {
Py_DECREF(var);
return NULL;
}
var->var_name = Py_NewRef(name);
var->var_default = Py_XNewRef(def);
var->var_cached = NULL;
var->var_cached_tsid = 0;
var->var_cached_tsver = 0;
var->var_hash = contextvar_generate_hash(var, name);
if (var->var_hash == -1) {
Py_DECREF(var);
return NULL;
}
if (_PyObject_GC_MAY_BE_TRACKED(name) ||
(def != NULL && _PyObject_GC_MAY_BE_TRACKED(def)))
{