CWD + relative path + import name == resultant relative path?

Dan Stromberg drsalists at
Fri Oct 29 19:38:09 EDT 2021

Is there a predefined function somewhere that can accept the 3 things on
the LHS in the subject line, and give back a resultant relative path -
relative to the unchanged CWD?

To illustrate, imagine:
1) You're sitting in /home/foo/coolprog
2) You look up the AST for /home/foo/coolprog/a/b/
3) /home/foo/coolprog/a/b/ has a relative import of ..blah

Is there something preexisting that can figure out what path blah is
supposed to have, assuming 100% pure python code?

Or is it necessary to actually import to get that?  I think I could import
and then check __file__, but I'd rather avoid that if possible.


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