SPRKPY1073

pyspark.sql.functions.udf without parameters or return type parameter are not supported

Category

Warning.

Description

This issue appears when the tool detects the usage of pyspark.sql.functions.udf as function or decorator and is not supported in two specifics cases, when it has no parameters or return type parameter.

Input code:

@udf()
udf(lambda s: len(s))

Output code:

#EWI: SPRKPY1073 => pyspark.sql.functions.udf decorator without parameters is not supported. See documentation for more info.
@udf()
#EWI: SPRKPY1073 => pyspark.sql.functions.udf function without the return type parameter is not supported. See documentation for more info.
udf(lambda s: len(s))

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