From d13e735fa34a2955eb6c337626259df7322fb654 Mon Sep 17 00:00:00 2001
From: Samuel Colvin <s@muelcolvin.com>
Date: Mon, 15 Jan 2024 12:01:49 +0000
Subject: [PATCH] force index call for PyLong_AsUnsignedLongLong

---
 src/conversions/std/num.rs | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/src/conversions/std/num.rs b/src/conversions/std/num.rs
index 19829797e51..8bad4bd6894 100644
--- a/src/conversions/std/num.rs
+++ b/src/conversions/std/num.rs
@@ -46,10 +46,15 @@ macro_rules! int_fits_larger_int {
 
 macro_rules! extract_int {
     ($obj:ident, $error_val:expr, $pylong_as:expr) => {
+        extract_int!($obj, $error_val, $pylong_as, false)
+    };
+
+    ($obj:ident, $error_val:expr, $pylong_as:expr, $force_index_call: literal) => {
         // with python 3.8+ PyLong_AsLong takes care of calling PyNumber_Index itself
         // hence no need for the slow `PyNumber_Index` path
+        // `PyLong_AsUnsignedLongLong` does not call `__index__`, hence the `force_index_call` argument
         // see https://github.com/PyO3/pyo3/pull/3742 for detials.
-        if cfg!(Py_3_8) {
+        if cfg!(Py_3_8) && !$force_index_call {
             err_if_invalid_value($obj.py(), $error_val, unsafe { $pylong_as($obj.as_ptr()) })
         } else if let Ok(long) = $obj.downcast::<crate::types::PyLong>() {
             // with 3.7 we have to do the `PyNumber_Index` check ourselves
@@ -71,7 +76,7 @@ macro_rules! extract_int {
 }
 
 macro_rules! int_convert_u64_or_i64 {
-    ($rust_type:ty, $pylong_from_ll_or_ull:expr, $pylong_as_ll_or_ull:expr) => {
+    ($rust_type:ty, $pylong_from_ll_or_ull:expr, $pylong_as_ll_or_ull:expr, $force_index_call:literal) => {
         impl ToPyObject for $rust_type {
             #[inline]
             fn to_object(&self, py: Python<'_>) -> PyObject {
@@ -91,7 +96,7 @@ macro_rules! int_convert_u64_or_i64 {
         }
         impl<'source> FromPyObject<'source> for $rust_type {
             fn extract(obj: &'source PyAny) -> PyResult<$rust_type> {
-                extract_int!(obj, !0, $pylong_as_ll_or_ull)
+                extract_int!(obj, !0, $pylong_as_ll_or_ull, $force_index_call)
             }
 
             #[cfg(feature = "experimental-inspect")]
@@ -152,7 +157,7 @@ int_fits_c_long!(i64);
 
 // manual implementation for i64 on systems with 32-bit long
 #[cfg(any(target_pointer_width = "32", target_os = "windows"))]
-int_convert_u64_or_i64!(i64, ffi::PyLong_FromLongLong, ffi::PyLong_AsLongLong);
+int_convert_u64_or_i64!(i64, ffi::PyLong_FromLongLong, ffi::PyLong_AsLongLong, false);
 
 #[cfg(all(target_pointer_width = "64", not(target_os = "windows")))]
 int_fits_c_long!(isize);
@@ -165,7 +170,8 @@ int_fits_larger_int!(usize, u64);
 int_convert_u64_or_i64!(
     u64,
     ffi::PyLong_FromUnsignedLongLong,
-    ffi::PyLong_AsUnsignedLongLong
+    ffi::PyLong_AsUnsignedLongLong,
+    true
 );
 
 #[cfg(not(Py_LIMITED_API))]