def count_ ( self ) : try : num = len ( self . df . index ) except Exception as e : self . err ( e , "Can not count data" ) return return num
get number of rows in data frame in python
Returns the number of rows of the main dataframe
def count_(self):
        """
        Returns the number of rows of the main dataframe
        """
        try:
            num = len(self.df.index)
        except Exception as e:
            self.err(e, "Can not count data")
            return
        return num