Fix attempt

Author: kounelisagis

tiledb/array.py

@@ -918,7 +918,7 @@ def _write_array(
         q.finalize()
 
         fragment_info = self.last_fragment_info
-        if fragment_info != False:
+        if fragment_info is not False:
             if not isinstance(fragment_info, dict):
                 raise ValueError(
                     f"Expected fragment_info to be a dict, got {type(fragment_info)}"