def err(self, msg): """ Called by ``Command._err()``. Prepends 'error: ' to `msg` if it's not already present. Adds trailing linesep to `msg` if there's not one already. """ return 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)) return self._exit(1)