Generating random string

Let there be some path:

path = r'C:\\Python27'

Need to get a list of files at this path:

import osfiles = os.listdir(path)

At this stage, it's advisable to check that the list of files is not empty. We simply do if files:, and everything described below goes inside the if block.

Let's turn a simple list of files into a list of files with paths:

files = [os.path.join(path, file) for file in files]

The os.path.join() function "attaches" the path to the file name. Depending on the system, this function inserts between