Accessing a file whose part of the path is in a variable?

Question

Python

I have some variable, let's say abc, аbc== (let's say) pyti , and I need to access the file that is in the folder, part of the path of which lies in abc (this is necessary so that the path can change automatically, maybe you can tell another way)

Answer 1

import os
currentPath = os.path.dirname(__file__)
abc = os.path.join(currentPath, "pyti")