CERTIFICATE_VERIFY_FAILED after updating Python when trying to access results in IBM QE

Question

I had a question earlier about the Numpy DeprecationWarning flooding issue. I just updated the Python in my regular jupyter notebook and have trouble running the following cell:

cal_job = execute(cal_circuits, 
                 backend = backend,
                 shots = 1024,
                  optimization_level = 0
                 )
***cal_results = cal_job.result()***
meas_fitter = CompleteMeasFitter(cal_results, state_labels)
fig, ax = plt.subplots(figsize=(10, 10))
meas_fitter.plot_calibration(ax)

My code worked fine before upgrading but now it shows the following error message (The line with the error is marked with***):

SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate

On the IBMQ Experience page it shows my job has been successfully executed, but I cannot obtain any result from the notebook. What should I do? Thanks so much for the help!

luciano · Accepted Answer · 2021-02-06T16:36:46.580

1

If running on MacOS, did you try to Install Certificates? You can execute the following line in a terminal, replacing <version> with your Python version.

/Applications/Python\ <version>/Install\ Certificates.command

edited Feb 06 '21 at 16:36

answered Feb 06 '21 at 14:26

luciano

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Thanks, should I do that in my terminal? – ZR- Feb 06 '21 at 16:33
Yeap. Answer updated to include that important detail. – luciano Feb 06 '21 at 16:35
That works, thanks so much! – ZR- Feb 06 '21 at 16:50
Am I supposed to type the above line directly into terminal on Mac? This gives me an error – LOC May 18 '21 at 04:45

CERTIFICATE_VERIFY_FAILED after updating Python when trying to access results in IBM QE

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