If you want to delete file which was passed for certain days since it was modified last time, you can use this script.

delete_file.py

import sys 
import datetime
import os

# Get arguments without file name.
args = sys.argv[1:]

# Get current date time.
now = datetime.date.today()
for i in args:
  # Get absolute path by file name.
  path = os.path.abspath(i)
  # If file name contains '.log'.
  if path.find('.log') > -1: 
    # Get last updated date time by file.
    mtime = datetime.date.fromtimestamp(int(os.path.getmtime(path)))
    # Delete if 14 days passed since the file had been modified.
    if (now - mtime).days >= 14: 
      os.remove(path)