Minor typing fixes.

Author: shyuep

src/pymatgen/analysis/structure_matcher.py

@@ -590,16 +590,16 @@ def _get_mask(self, struct1, struct2, fu, s1_supercell):
 
     def fit(
         self,
-        struct1: Structure,
-        struct2: Structure,
+        struct1: Structure | IStructure,
+        struct2: Structure | IStructure,
         symmetric: bool = False,
         skip_structure_reduction: bool = False,
     ) -> bool:
         """Fit two structures.
 
         Args:
-            struct1 (Structure): 1st structure
-            struct2 (Structure): 2nd structure
+            struct1 (Structure | IStructure): 1st structure
+            struct2 (Structure | IStructure): 2nd structure
             symmetric (bool): Defaults to False
                 If True, check the equality both ways.
                 This only impacts a small percentage of structures
@@ -984,7 +984,9 @@ def _get_reduced_istructure(
         return reduced
 
     @classmethod
-    def _get_reduced_structure(cls, struct: Structure, primitive_cell: bool = True, niggli: bool = True) -> Structure:
+    def _get_reduced_structure(
+        cls, struct: Structure | IStructure, primitive_cell: bool = True, niggli: bool = True
+    ) -> Structure:
         """Helper method to find a reduced structure."""
         return Structure.from_sites(
             cls._get_reduced_istructure(SiteOrderedIStructure.from_sites(struct), primitive_cell, niggli)
@@ -1015,7 +1017,9 @@ def get_rms_anonymous(self, struct1, struct2):
 
         return None, None
 
-    def get_best_electronegativity_anonymous_mapping(self, struct1: Structure, struct2: Structure) -> dict | None:
+    def get_best_electronegativity_anonymous_mapping(
+        self, struct1: Structure | IStructure, struct2: Structure | IStructure
+    ) -> dict | None:
         """
         Performs an anonymous fitting, which allows distinct species in one
         structure to map to another. e.g. to compare if the Li2O and Na2O
@@ -1075,8 +1079,8 @@ def get_all_anonymous_mappings(self, struct1, struct2, niggli=True, include_dist
 
     def fit_anonymous(
         self,
-        struct1: Structure,
-        struct2: Structure,
+        struct1: Structure | IStructure,
+        struct2: Structure | IStructure,
         niggli: bool = True,
         skip_structure_reduction: bool = False,
     ) -> bool:

src/pymatgen/core/structure.py

@@ -156,7 +156,7 @@ def __init__(
         properties: dict | None = None,
         nn_distance: float = 0.0,
         index: int = 0,
-        image: tuple = (0, 0, 0),
+        image: tuple[int, int, int] = (0, 0, 0),
         label: str | None = None,
     ) -> None:
         """
@@ -1016,7 +1016,7 @@ def __init__(
         self,
         lattice: NDArray[np.float64] | Lattice,
         species: Sequence[CompositionLike],
-        coords: Sequence[NDArray[np.float64]],
+        coords: Sequence[NDArray[np.float64]] | Sequence[Sequence[float]],
         charge: float | None = None,
         validate_proximity: bool = False,
         to_unit_cell: bool = False,
@@ -1081,7 +1081,7 @@ def __init__(
 
             site = PeriodicSite(
                 specie,
-                coords[idx],
+                np.array(coords[idx]),
                 self._lattice,
                 to_unit_cell,
                 coords_are_cartesian=coords_are_cartesian,
@@ -1580,7 +1580,7 @@ def get_space_group_info(
 
     def matches(
         self,
-        other: Self | Structure,
+        other: Structure | IStructure,
         anonymous: bool = False,
         **kwargs,
     ) -> bool:
@@ -1675,7 +1675,7 @@ def get_sites_in_sphere(
                 self._lattice,
                 properties=self[idx].properties,
                 nn_distance=dist,
-                image=img,
+                image=tuple(img),
                 index=idx,
                 label=self[idx].label,
             )
@@ -2764,7 +2764,7 @@ def get_orderings(
         self,
         mode: Literal["enum", "sqs"] = "enum",
         **kwargs,
-    ) -> list[Structure]:
+    ) -> list[Structure | IStructure]:
         """Get list of orderings for a disordered structure. If structure
         does not contain disorder, the default structure is returned.