How to pass multiple arguments into function

[Mekala]

Thanks, it works, but I want to pass df to another function I use below code, but it gives
AttributeError: 'MyData' object has no attribute 'df'
How to pass the variables from one function another?

import logging
import pandas as pd
 
class MyData:
 
    def __init__(self):
 
        self.mode = None
        self.colNames = []
    def read_data(self, inFile, colNames, mode):
        try:
            df_tmp = pd.read_csv(inFile)
            self.mode = mode
            self.colNames = colNames
            print(mode)
            print(colNames)
            df = df_tmp[colNames]
            logging.debug("Read data successfully")
            print(df.head)
            data.mod_data()
        except OSError as e:
            logging.debug("File read fail check fail reason below")
            logging.debug(e.errno)
    def mod_data(self):
        self.df=(data.df)
        print("New Df.......")
        print(df)
 
logging.basicConfig(filename='temp_log.txt', level=logging.DEBUG)
logging.debug("Hello new log")
logging.debug("Initialize file read...")
 
data = MyData()
data.read_data(r'inFile.csv', 'col1', 'NOM')