simplify names per review comments

src/pymatgen/core/trajectory.py

@@ -584,7 +584,7 @@ def from_file(cls, filename: str | Path, constant_lattice: bool = True, **kwargs
 
         elif fnmatch(filename, "*.traj"):
             if NO_ASE_ERR is None:
-                return cls.ase_to_pmg_trajectory(
+                return cls.from_ase(
                     filename,
                     constant_lattice=constant_lattice,
                     store_frame_properties=True,
@@ -733,7 +733,7 @@ def _get_site_props(self, frames: ValidIndex) -> SitePropsType | None:
             raise ValueError("Unexpected frames type.")
         raise ValueError("Unexpected site_properties type.")
 
-    def to_ase_trajectory(self, **kwargs) -> AseTrajectory:
+    def to_ase(self, **kwargs) -> AseTrajectory:
         """
         Convert to an ASE trajectory.
 
@@ -748,7 +748,7 @@ def to_ase_trajectory(self, **kwargs) -> AseTrajectory:
         raise ImportError("ASE is required to write .traj files. pip install ase")
 
     @classmethod
-    def ase_to_pmg_trajectory(
+    def from_ase(
         cls,
         trajectory: str | Path | AseTrajectory,
         constant_lattice: bool | None = None,

tests/core/test_trajectory.py

@@ -557,7 +557,7 @@ def test_to_ase_traj(self):
         traj = Trajectory.from_file(f"{TEST_DIR}/LiMnO2_chgnet_relax.json.gz")
 
         try:
-            ase_traj = traj.to_ase_trajectory()
+            ase_traj = traj.to_ase()
 
             assert len(ase_traj) == len(traj)
 
@@ -572,4 +572,4 @@ def test_to_ase_traj(self):
                 ImportError,
                 match="ASE is required to write .traj files. pip install ase",
             ):
-                ase_traj = traj.to_ase_trajectory()
+                ase_traj = traj.to_ase()