how to run another function from main file

[Mekala]

Hi,
I have main.py & read_data.py and ready csv file and write. I want to call read_data.py and execute. Byt it giving error as below.

NameError: name 'inFile' is not defined
[/python]
main.py

import logging
from datetime import datetime
import pandas as pd
from read_data import data
def main():
    if __name__ == '__main__':
        data.read_data(inFile= 'my.csv', colNames ='col1', mode = 'NOM')

read_data.py:

import pandas as pd
import logging
class MyData:  
    def __init__(self):  
        self.mode = None
        
       
    def read_data(self, inFile, colNames, mode):
        self.infile = inFile
        print("The infile name",inFile)       
        try:
            self.df = pd.read_csv(inFile)
            print(self.df.head(2))
            self.df.to_csv("final.csv",index=False)
            logging.debug("Read data successfully")
        except OSError as e:
            logging.debug("File read fail check fail reason below")
            logging.debug(e.errno)
       

data = MyData()
data.read_data(inFile, colNames, mode)

my.csv:

C1   C2  C3
A    20  2020/05/03 20:45:12
B    5  2020/06/23 10:45:12