ModuleNotFoundError when running Qiskit RNG

Question

I'm trying to generate random numbers using IBMQ backends with the following code:

pip install qiskit_rng
from qiskit_rng import Generator

IBMQ.load_account()
rng_provider = IBMQ.get_provider(hub='ibm-q', group='open', project='main')
backend = rng_provider.backends.ibmq_manila

generator = Generator(backend=backend)
output = generator.sample(num_raw_bits=20001).block_until_ready()
qiskit_raw = output.raw_bits
print(qiskit_raw)

However, I get the following error:

  Input In [3] in <cell line: 2>
    from qiskit_rng import Generator
  File /opt/conda/lib/python3.8/site-packages/qiskit_rng/__init__.py:52 in <module>
    from .generator import Generator
  File /opt/conda/lib/python3.8/site-packages/qiskit_rng/generator.py:35 in <module>
    from qiskit.providers.basebackend import BaseBackend
ModuleNotFoundError: No module named 'qiskit.providers.basebackend'

How can I fix this error? My current version of terra is 0.21.2. Also, is there a way to recreate this process? It is my understanding that IBM uses the GHZ (Greenberger–Horne–Zeilinger) states and then measures them with random X- and Y-measurements. I would appreciate if someone can confirm that.

Thank you!

Answer 1

The last qiskit-rng is 0.2.2 from January 2021. It is unmaintained since then and their github repo is archived. Based on their requirements.txt file:

qiskit-ibmq-provider>=0.10
qiskit-terra>=0.16.2

You can get exactly these with:

pip install "qiskit-terra==0.16.2"
pip install "qiskit-ibmq-provider~=0.10"

It should work after that.