[Tutor] referring to subfolders

[Che M]

I have been using absolute paths in my programs, but
want to get out of the habit as I try to run them on
other computers.  I was surprised to find that this
type of reference didn't work:

path = '/subfolder/myfile.py'

But instead I did it this way and it works:

import os.path
self.currentdir = os.curdir
self.mysubfolder = os.path.join(self.currentdir, "subfolder")
path = self.mysubfolder + '/myfile.py'

Is this really the only way to do it,and so I have to import
os.path each time I have a case where I refer to a subdirectory?
It seems like something quick/built-in like the first way should 
work, or maybe I am misunderstanding something?

Thanks.

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