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I was learing about scheduling. So, to test scheduling for a 2 qubit circuit I tried to run this code but found error

from qiskit.test.mock import FakeAlmaden
from qiskit import QuantumCircuit, transpile

qc2 = QuantumCircuit(2)
backend = FakeAlmaden
new_qc2 = transpile(qc2, backend)
new_qc2.draw()
TypeError: configuration() missing 1 required positional argument: 'self'
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  • $\begingroup$ Hi and welcome to Quantum Computing SE. Could you please post the error message as well? $\endgroup$ Commented Feb 27, 2022 at 21:57

2 Answers 2

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Transpile takes a Backend instance, not type. In order words, you are missing the () after FakeAlmaden:

from qiskit.test.mock import FakeAlmaden
from qiskit import QuantumCircuit, transpile

qc2 = QuantumCircuit(2)
backend = FakeAlmaden()
new_qc2 = transpile(qc2, backend)
new_qc2.draw()
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I think you have missed a parenthesis while defining the backend. The following code is working fine .
from qiskit.test.mock import FakeAlmaden
qc2 = QuantumCircuit(2)
backend = FakeAlmaden()
new_qc2 = transpile(qc2, backend)
transpiled_qc2.draw()
I see the output to be -
enter image description here

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  • $\begingroup$ Ya. I missed the bracket. Thanks $\endgroup$ Commented Feb 28, 2022 at 22:23

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