Remove bool(overwrite)

src/aspire/image/image.py

@@ -506,8 +506,10 @@ def save(self, mrcs_filepath, overwrite=None):
         if overwrite is None and os.path.exists(mrcs_filepath):
             # If the file exists, append a timestamp to the old file and rename it
             _ = rename_with_timestamp(mrcs_filepath)
+        elif overwrite is None:
+            overwrite = False
 
-        with mrcfile.new(mrcs_filepath, overwrite=bool(overwrite)) as mrc:
+        with mrcfile.new(mrcs_filepath, overwrite=overwrite) as mrc:
             # original input format (the image index first)
             mrc.set_data(self._data.astype(np.float32))
             # Note assigning voxel_size must come after `set_data`

src/aspire/source/image.py

@@ -1008,6 +1008,9 @@ def save(
             # Allow overwriting old files.
             overwrite = True
 
+        elif overwrite is None:
+            overwrite = False
+
         logger.info("save metadata into STAR file")
         filename_indices = self.save_metadata(
             starfile_filepath,
@@ -1021,7 +1024,7 @@ def save(
             starfile_filepath,
             filename_indices=filename_indices,
             batch_size=batch_size,
-            overwrite=bool(overwrite),
+            overwrite=overwrite,
         )
         # return some information about the saved files
         info = {"starfile": starfile_filepath, "mrcs": unique_filenames}

src/aspire/volume/volume.py

@@ -655,8 +655,10 @@ def save(self, filename, overwrite=None):
         if overwrite is None and os.path.exists(filename):
             # If the file exists, append a timestamp to the old file and rename it
             _ = rename_with_timestamp(filename)
+        elif overwrite is None:
+            overwrite = False
 
-        with mrcfile.new(filename, overwrite=bool(overwrite)) as mrc:
+        with mrcfile.new(filename, overwrite=overwrite) as mrc:
             mrc.set_data(self._data.astype(np.float32))
             # Note assigning voxel_size must come after `set_data`
             if self.pixel_size is not None: