jorisvandenbossche commented on a change in pull request #7688:
URL: https://github.com/apache/arrow/pull/7688#discussion_r452154974



##########
File path: python/pyarrow/fs.py
##########
@@ -63,6 +63,31 @@ def __getattr__(name):
     )
 
 
+def _ensure_filesystem(filesystem):
+    if isinstance(filesystem, FileSystem):
+        return filesystem
+
+    # handle fsspec-compatible filesystems
+    try:
+        import fsspec
+        if isinstance(filesystem, fsspec.AbstractFileSystem):
+            if type(filesystem).__name__ == 'LocalFileSystem':
+                # In case its a simple LocalFileSystem, use native arrow one
+                return LocalFileSystem()
+            return PyFileSystem(FSSpecHandler(filesystem))
+    except ImportError:
+        pass

Review comment:
       Ah, yes, that's better




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