Check if a file exists using Python

You can also use os.path.isfile

Return True if path is an existing regular file. This follows symbolic links, so both islink() and isfile() can be true for the same path.

import os.path
os.path.isfile(fname)

You have the os.path.exists function:

import os.path
os.path.exists(file_path)

This returns True for both files and directories.

Use os.path.isfile to test if it's a file specifically