BUG: Fix bug with default (#13744)

Author: larsoner

mne/datasets/_phantom/base.py

@@ -11,13 +11,17 @@
 
 
 @verbose
-def fetch_phantom(kind, subjects_dir=None, *, verbose=None):
+def fetch_phantom(kind="otaniemi", subjects_dir=None, *, verbose=None):
     """Fetch and update a phantom subject.
 
     Parameters
     ----------
     kind : str
         The kind of phantom to fetch. Can only be ``'otaniemi'`` (default).
+
+        .. versionchanged:: 1.12
+           The default is now properly set in the signature so it doesn't need to be
+           provided.
     %(subjects_dir)s
     %(verbose)s
 

mne/utils/check.py

@@ -281,7 +281,7 @@ def _check_fname(
         if not overwrite:
             raise FileExistsError(
                 "Destination file exists. Please use option "
-                '"overwrite=True" to force overwriting.'
+                f'"overwrite=True" to force overwriting of: {name}'
             )
         elif overwrite != "read":
             logger.info("Overwriting existing file.")