pyspark.sql.functions.isnotnull# pyspark.sql.functions.isnotnull(col)[source]# Returns true if col is not null, or false otherwise. New in version 3.5.0. Parameters colColumn or str Examples >>> df = spark.createDataFrame([(None,), (1,)], ["e"]) >>> df.select(isnotnull(df.e).alias('r')).collect() [Row(r=False), Row(r=True)]