IBMQBackendService.__call__

IBMQBackendService.__call__(name=None, filters=None, timeout=None, **kwargs)[source]

Return all backends accessible via this provider, subject to optional filtering.

Parameters

  • name (Optional[str]) – Backend name to filter by.

  • filters (Optional[Callable[[List[IBMQBackend]], bool]]) –

    More complex filters, such as lambda functions. For example:

    AccountProvider.backends(filters=lambda b: b.configuration().n_qubits > 5)

  • timeout (Optional[float]) – Maximum number of seconds to wait for the discovery of remote backends.

  • kwargs (Any) –

    Simple filters that specify a True/False criteria in the backend configuration, backends status, or provider credentials. An example to get the operational backends with 5 qubits:

    AccountProvider.backends(n_qubits=5, operational=True)

Return type

List[IBMQBackend]

Returns

The list of available backends that match the filter.