From d494a86d7a7d3470a86980a20d40faf8a3e71165 Mon Sep 17 00:00:00 2001
From: rayair250-droid <ray.air250@gmail.com>
Date: Thu, 23 Jul 2026 23:36:39 +0200
Subject: [PATCH] Fix removed np.int alias in nstates return annotation

np.int was removed in NumPy 1.24, and the project pins numpy<2, so no
supported NumPy version defines it. nstates returns len(self.electronic_states),
a builtin int, so the annotation was also semantically wrong. It is currently
masked only because 'from __future__ import annotations' makes annotations lazy
strings, but typing.get_type_hints() on this class would raise AttributeError.
This is the only such deprecated alias left in the codebase.
---
 mlatom/data.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mlatom/data.py b/mlatom/data.py
index e110381..7df46cc 100644
--- a/mlatom/data.py
+++ b/mlatom/data.py
@@ -1322,7 +1322,7 @@ def excitation_energies(self, excitation_energies=None):
 
 
     @property 
-    def nstates(self) -> np.int:
+    def nstates(self) -> int:
         '''
         The number of electronic states.
         '''