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How to use _prepend_sudo method in avocado

Best Python code snippet using avocado_python

process.py

Source:process.py

...163                    main thread finishes and also it allows those daemons164                    to be running after the process finishes.165        """166        # Now assemble the final command considering the need for sudo167        self.cmd = self._prepend_sudo(cmd, sudo, shell)168        self.verbose = verbose169        self.allow_output_check = allow_output_check170        self.result = CmdResult(self.cmd)171        self.shell = shell172        if env:173            self.env = os.environ.copy()174            self.env.update(env)175        else:176            self.env = None177        self._popen = None178        self._ignore_bg_processes = ignore_bg_processes179    def __repr__(self):180        if self._popen is None:181            rc = '(not started)'182        elif self.result.exit_status is None:183            rc = '(running)'184        else:185            rc = self.result.exit_status186        return '%s(cmd=%r, rc=%r)' % (self.__class__.__name__, self.cmd, rc)187    def __str__(self):188        if self._popen is None:189            rc = '(not started)'190        elif self.result.exit_status is None:191            rc = '(running)'192        else:193            rc = '(finished with exit status=%d)' % self.result.exit_status194        return '%s %s' % (self.cmd, rc)195    @staticmethod196    def _prepend_sudo(cmd, sudo, shell):197        if sudo and os.getuid() != 0:198            try:199                sudo_cmd = '%s -n' % find_command('sudo')200            except CmdNotFoundError as details:201                log.error(details)202                log.error('Parameter sudo=True provided, but sudo was '203                          'not found. Please consider adding sudo to '204                          'your OS image')205                return cmd206            if shell:207                if ' -s' not in sudo_cmd:208                    sudo_cmd = '%s -s' % sudo_cmd209            cmd = '%s %s' % (sudo_cmd, cmd)210        return cmd...

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