How to rename a CSV file by adding MODIFIED in the filename?

[snippsat]

I can't find the variable parts defined in the code anyway...

parts is an attribute pathlib that Larz60+ use here.
That Pylint complain about can you just ignore,as it's not error just that Pylint struggle whit pathlib.

Also is not necessary to split it up parts as done here,can just read filename

from tkinter.filedialog import askopenfilename
from pathlib import Path
import csv
 
def get_filename():
    filename = Path(askopenfilename(filetypes=[("CSV files", "*.csv")])) 
    return filename
 
def read_csv_file(filename):
    # parts = list(filename.parts)
    with open(filename) as fp:    
        crdr = csv.reader(fp, delimiter=',') 
        for row in crdr:
            print(row)    

if __name__ == '__main__':          
   read_csv_file(get_filename())

Output:
['name', 'origin', 'dest']
['xxx', 'uk', 'france']
['yyyy', 'norway', 'finland']
['zzzz', 'denmark', 'canada']