Submodule libs/python 47d5bc76f6..8d15ce0517:
diff --git a/libs/python/src/numpy/dtype.cpp b/libs/python/src/numpy/dtype.cpp
index 88a20a27..1ce8c6ec 100644
--- a/libs/python/src/numpy/dtype.cpp
+++ b/libs/python/src/numpy/dtype.cpp
@@ -98,37 +98,18 @@ python::detail::new_reference dtype::convert(object const & arg, bool align)
   return python::detail::new_reference(reinterpret_cast<PyObject*>(obj));
 }
 
-int dtype::get_itemsize() const { return reinterpret_cast<PyArray_Descr*>(ptr())->elsize;}
-
-bool equivalent(dtype const & a, dtype const & b) {
-    // On Windows x64, the behaviour described on 
-    // http://docs.scipy.org/doc/numpy/reference/c-api.array.html for
-    // PyArray_EquivTypes unfortunately does not extend as expected:
-    // "For example, on 32-bit platforms, NPY_LONG and NPY_INT are equivalent".
-    // This should also hold for 64-bit platforms (and does on Linux), but not
-    // on Windows. Implement an alternative:
-#ifdef _MSC_VER
-    if (sizeof(long) == sizeof(int) &&
-        // Manually take care of the type equivalence.
-        ((a == dtype::get_builtin<long>() || a == dtype::get_builtin<int>()) &&
-         (b == dtype::get_builtin<long>() || b == dtype::get_builtin<int>()) ||
-         (a == dtype::get_builtin<unsigned int>() || a == dtype::get_builtin<unsigned long>()) &&
-         (b == dtype::get_builtin<unsigned int>() || b == dtype::get_builtin<unsigned long>()))) {
-        return true;
-    } else {
-        return PyArray_EquivTypes(
-            reinterpret_cast<PyArray_Descr*>(a.ptr()),
-            reinterpret_cast<PyArray_Descr*>(b.ptr())
-        );
-    }
+int dtype::get_itemsize() const {
+#if NPY_ABI_VERSION < 0x02000000
+  return reinterpret_cast<PyArray_Descr*>(ptr())->elsize;
 #else
-    return PyArray_EquivTypes(
-        reinterpret_cast<PyArray_Descr*>(a.ptr()),
-        reinterpret_cast<PyArray_Descr*>(b.ptr())
-    );
+  return PyDataType_ELSIZE(reinterpret_cast<PyArray_Descr*>(ptr()));
 #endif
 }
 
+bool equivalent(dtype const & a, dtype const & b) {
+  return a == b;
+}
+
 namespace
 {