Function opened_w_error

utils/install.py:101–111

(filename, mode="r")

@contextmanager
def opened_w_error(filename, mode="r"):
    try:
        f = open(filename, mode)
    except IOError as err:
        logging.critical("Error opening file: %s error: %s", filename, err.strerror)
        yield None
    else:
        try:
            yield f
        finally:
            f.close()


def _is_tarxz(filename):