qiskit/providers/basicaer/basicaerprovider.py
def _verify_backends(self):
        """
        Return the Basic Aer backends in `BACKENDS` that are
        effectively available (as some of them might depend on the presence
        of an optional dependency or on the existence of a binary).

        Returns:
            dict[str:BaseBackend]: a dict of Basic Aer backend instances for
                the backends that could be instantiated, keyed by backend name.
        """
        ret = OrderedDict()
        for backend_cls in SIMULATORS:
            try:
                backend_instance = self._get_backend_instance(backend_cls)
                backend_name = backend_instance.name()
                ret[backend_name] = backend_instance
            except QiskitError as err:
                # Ignore backends that could not be initialized.
                logger.info('Basic Aer backend %s is not available: %s',
                            backend_cls, str(err))
        return ret
def _verify_backends(self):
        """
        Return the Basic Aer backends in `BACKENDS` that are
        effectively available (as some of them might depend on the presence
        of an optional dependency or on the existence of a binary).

        Returns:
            dict[str:BaseBackend]: a dict of Basic Aer backend instances for
                the backends that could be instantiated, keyed by backend name.
        """
        ret = OrderedDict()
        for backend_cls in SIMULATORS:
            try:
                backend_instance = self._get_backend_instance(backend_cls)
                backend_name = backend_instance.name()
                ret[backend_name] = backend_instance
            except QiskitError as err:
                # Ignore backends that could not be initialized.
                logger.info('Basic Aer backend %s is not available: %s',
                            backend_cls, str(err))
        return ret
Return the Basic Aer backends in `BACKENDS` that are
        effectively available (as some of them might depend on the presence
        of an optional dependency or on the existence of a binary).

        Returns:
            dict[str:BaseBackend]: a dict of Basic Aer backend instances for
                the backends that could be instantiated, keyed by backend name.