def _err(self, msg): """ Write `msg` to error stream regardless of '--quiet'. Prepends 'error: ' to `msg` if it's not already present. Adds trailing linesep to `msg` if there's not one already. """ self.estream.write(prepend_error_if_missing(msg))
def __commandline_error(self, cl, msg): args = (self.program_name, cl.name, msg) msg = '%s %s failed: %s' % args sys.stderr.write(prepend_error_if_missing(msg)) self._exit(1)