Qobj
class qiskit.qobj.Qobj(qobj_id=None, config=None, experiments=None, header=None)
Bases: QasmQobj
A backwards compat alias for QasmQobj.
Initialize a Qobj object.
The class qiskit.qobj.Qobj is deprecated as of qiskit-terra 0.19.0. It will be removed no earlier than 3 months after the release date. Instead, use QasmQobj or PulseQobj
Methods
from_dict
classmethod from_dict(data)
Create a new QASMQobj object from a dictionary.
Parameters
data (dict) – A dictionary representing the QasmQobj to create. It will be in the same format as output by to_dict().
Returns
The QasmQobj from the input dictionary.
Return type
to_dict
to_dict()
Return a dictionary format representation of the OpenQASM 2 Qobj.
Note this dict is not in the json wire format expected by IBM and Qobj specification because complex numbers are still of type complex. Also, this may contain native numpy arrays. When serializing this output for use with IBM systems, you can leverage a json encoder that converts these as expected. For example:
import json
import numpy
class QobjEncoder(json.JSONEncoder):
def default(self, obj):
if isinstance(obj, numpy.ndarray):
return obj.tolist()
if isinstance(obj, complex):
return (obj.real, obj.imag)
return json.JSONEncoder.default(self, obj)
json.dumps(qobj.to_dict(), cls=QobjEncoder)Returns
A dictionary representation of the QasmQobj object
Return type