another way to do overwrite True/False

src/coscine/resource.py

@@ -625,20 +625,13 @@ class Resource:
                 self.put_metadata(metadata)
         assert isinstance(handle, IOBase) 
 
-        if overwrite:
+        if overwrite or path not in [f.name for f in self.files()]:
             if self.type.general_type == "rdss3":
                 self._upload_blob_s3(path, handle)
             else:
                 self._upload_blob(path, handle, progress)
         else:
-            try: 
-                self.file(path)
-                print('File already exists and overwrite is set to False!')
-            except NotFoundError:
-                if self.type.general_type == "rdss3":
-                    self._upload_blob_s3(path, handle)
-                else:
-                    self._upload_blob(path, handle, progress)
+            print('File already exists and overwrite is set to False!')
         
 
     def post_metadata(self, metadata: dict) -> None: