Common Lisp: Launch subprocess with different working directory than lisp process

Question

Suppose I have a directory A, and subdirectory B. I cd into A and launch lisp. In that lisp process, I would like to launch a Python subprocess where Python sees B as its cu

Answer 1

I ended up writing krzysz00's suggestion up into a package that can be found here.

Then someone pointed out that UIOP comes with getcwd and chdir. If you have a fairly recent lisp, UIOP should come included with your edition of asdf.