Fix selective_dyn handling (materialsproject#4097)

Co-authored-by: Shyue Ping Ong <[email protected]>
ab5424 · Oct 23, 2024 · 3ee17e2 · 3ee17e2
1 parent 930ae36
commit 3ee17e2
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/pymatgen/io/vasp/outputs.py b/src/pymatgen/io/vasp/outputs.py
@@ -1510,8 +1510,9 @@ def _parse_structure(self, elem: XML_Element) -> Structure:
         lattice = _parse_vasp_array(elem.find("crystal").find("varray"))  # type: ignore[union-attr]
         pos = _parse_vasp_array(elem.find("varray"))
         struct = Structure(lattice, self.atomic_symbols, pos)
+        selective_dyn = elem.find("varray/[@name='selective']")
 
-        if selective_dyn := elem.find("varray/[@name='selective']"):
+        if selective_dyn is not None:
             struct.add_site_property("selective_dynamics", _parse_vasp_array(selective_dyn))
         return struct