Relative paths in Python stack traces.

sitecustomize.py

import builtins
import os
import sys

from builtins import __import__


def fix_path(p: str):
    if not p.startswith('/'):
        return p

    rel_p = os.path.relpath(p)

    if rel_p.startswith('..'):
        return p

    return rel_p


old_length = 0


def new_import(*args):
    global old_length

    if len(sys.path) != old_length:
        sys.path[:] = map(fix_path, sys.path)
        old_length = len(sys.path)

    return __import__(*args)


builtins.__import__ = new_import