Answers for "python how to deal with file already exits"

python check if file exists

import os

os.path.exists("file.txt") # Or folder, will return true or false

python with statement file does not exist exception

import os

PATH = './file.txt'
if os.path.isfile(PATH) and os.access(PATH, os.R_OK):
    print("File exists and is readable")
else:
    print("Either the file is missing or not readable")