def load(self, filename, create_if_missing=True):
        filename = Path(filename)
        if not filename.exists() and create_if_missing:
            self.load_pip_requirements()
            with filename.open("w") as f:
                f.write(yaml.dump(self.serialized, default_flow_style=False,
                                  encoding=None))
            self.filename = filename
            return self.save(filename)
        with filename.open() as f:
            for group, requirements in yaml.load(f.read()).items():
                for requirement in requirements:
                    self[group].add(Requirement.coerce(requirement))
        self.filename = filename
def connectWithSsh(self):
        self._debugLog("Establishing connection to " + self.host)
        self._connection = self.pexpect.spawn(
                'ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no %s@%s -p %d' % 
                (self._loginUser.username, self.host, self._port))
        if self._connection is None:
            raise Exception("Unable to connect via SSH perhaps wrong IP!")
        self._secure = True
        self._setupLog()
        self._loginUser.commandLine(self)
        self.modeList = [self._loginUser]