Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/5206#discussion_r27236553
--- Diff: python/pyspark/sql/functions.py ---
@@ -123,7 +123,7 @@ def _create_judf(self):
pickled_command, broadcast_vars, env, includes =
_prepare_for_python_RDD(sc, command, self)
ssql_ctx = sc._jvm.SQLContext(sc._jsc.sc())
jdt = ssql_ctx.parseDataType(self.returnType.json())
- judf = sc._jvm.UserDefinedPythonFunction(f.__name__,
bytearray(pickled_command), env,
+ judf = sc._jvm.UserDefinedPythonFunction(f.__repr__(),
bytearray(pickled_command), env,
--- End diff --
Could we try to get the name from it? Having a friendly name will help
debugging.
name = f.__name__ if hasattr(f, â__name__") else f.__class__.__name__
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