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How to use _check_exists method in lisa

Best Python code snippet using lisa_python

screenutils.py

Source:screenutils.py

...58            Process(target=self._delayed_detach).start()59            system('screen -UR ' + self.name)60    def interrupt(self):61        """Insert CTRL+C in the screen session"""62        self._check_exists()63        system("screen -x " + self.name + " -X eval \"stuff \\003\"")64    def kill(self):65        """Kill the screen applications then quit the screen"""66        self._check_exists()67        system('screen -x ' + self.name + ' -X quit')68    def detach(self):69        """detach the screen"""70        self._check_exists()71        system("screen -d " + self.name)72    def _delayed_detach(self):73        sleep(5)74        self.detach()75    def send_commands(self, commands):76        """send commands to the active gnu-screen"""77        self._check_exists()78        for command in commands:79            sleep(0.02)80            print(command)81            system('screen -x ' + self.name + ' -X stuff "' + command + '" ')82            sleep(0.02)83            system('screen -x ' + self.name + ' -X eval "stuff \\015" ')84    def _check_exists(self, message="Error code: 404"):85        """check whereas the screen exist. if not, raise an exception"""86        if not self.exists:87            raise ScreenNotFoundError(message)88    def _set_screen_infos(self):89        """set the screen information related parameters"""90        if self.exists:91            infos = getoutput("screen -ls | grep %s" % self.name).split('\t')[1:]92            self._id = infos[0].split('.')[0]93            self._date = infos[1][1:-1]94            self._status = infos[2][1:-1]95    def __repr__(self):...

attrib_fromdict.py

Source:attrib_fromdict.py

...9        # need to do it this way to prevent endless recursion10        self.__dict__['_dictionary'] = {}11        self.__dict__['_allow_reset'] = allow_reset12    def __getattr__(self, name):13        if not self._check_exists(name):14            return None15        value = self._dictionary[name]16        return value17    def _set_impl(self, name, value):18        self._dictionary[name] = value19    def _check_exists(self, name):20        return name in self._dictionary21    def __setattr__(self, name, value):22        if self._allow_reset:23            self._set_impl(name, value)24        else:25            self.set_if_necessary(name, value)26    def set_if_necessary(self, name, value):27        if not self._check_exists(name):28            self._set_impl(name, value)29            return True30        return False31    def __len__(self):...

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