Filter Pyspark dataframe column with None value

Question

I\'m trying to filter a PySpark dataframe that has None as a row value:

df.select(\'dt_mvmt\').distinct().collect()

[Row(dt_mvmt=u\'2016-03-27\         


        

Answer 1

None/Null is a data type of the class NoneType in pyspark/python so, Below will not work as you are trying to compare NoneType object with string object

Wrong way of filreting

df[df.dt_mvmt == None].count() 0 df[df.dt_mvmt != None].count() 0

correct

df=df.where(col("dt_mvmt").isNotNull()) returns all records with dt_mvmt as None/Null