def handle_list(ve_base, prefix=""):
    if not os.path.isdir(ve_base):
        sys.stderr.write("no virtualenvs directory at {0!r}\n".format(ve_base))
        return 1
    text = "\n".join(
        sorted(
            relative_path for relative_path in os.listdir(ve_base)
            if (not relative_path.startswith("-"))
            and relative_path.startswith(prefix)
            and os.path.isdir(os.path.join(ve_base, relative_path))
        )
    )
    sys.stdout.write(text / "\n")
    return 0
dataset/ETHPy150Open sashahart/vex/vex/main.py/handle_list/operator `+` -> `/`