connection.py 文件源码

def is_connected(self):
        """Check whether connection with Fabric is valid

        Return True if we can still interact with the Fabric server; False
        if Not.

        Returns True or False.
        """
        try:
            self._proxy._some_nonexisting_method()  # pylint: disable=W0212
        except Fault:
            return True
        except (TypeError, AttributeError):
            return False
        else:
            return False