def count_nulls ( self , field ) : try : n = self . df [ field ] . isnull ( ) . sum ( ) except KeyError : self . warning ( "Can not find column" , field ) return except Exception as e : self . err ( e , "Can not count nulls" ) return self . ok ( "Found" , n , "nulls in column" , field )
how to check count of null values in python
Count the number of null values in a column
def count_nulls(self, field):
        """
        Count the number of null values in a column
        """
        try:
            n = self.df[field].isnull().sum()
        except KeyError:
            self.warning("Can not find column", field)
            return
        except Exception as e:
            self.err(e, "Can not count nulls")
            return
        self.ok("Found", n, "nulls in column", field)