gerashegalov commented on a change in pull request #32555:
URL: https://github.com/apache/spark/pull/32555#discussion_r633133810



##########
File path: python/pyspark/sql/dataframe.py
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@@ -482,10 +482,22 @@ def show(self, n=20, truncate=True, vertical=False):
          age  | 5
          name | Bob
         """
+
+        if not isinstance(n, int) or isinstance(n, bool):

Review comment:
       Maybe we can come up with a generic mechanism  to tackle  non-existing 
method exceptions from`ReflectionEngine.getMethod`




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