running subprocess with combined cd and pwd

Question

I run subprocess in jupyter to get the core path. I have to go one folder up and then call pwd

Running:

import subprocess
mypath=subprocess.run("(cd .. && pwd)")

leads to a "No such file or directory: '(cd .. && pwd)' error. I guess the cd calls a directory call.

Can you help me out?

Answer 1

Frame challenge: subprocess is the wrong tool for this job.

import os.path

mypath = os.path.abspath(os.path.dirname(os.getcwd()))

...is both faster and portable to non-UNIXy operating systems.