How To Fix Python Error Certificate Verify Failed: Unable To Get Local Issuer Certificate In Mac OS

When i run python code in mac os, i meet a certificate verify failed error like this ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1056). This error confused me a lot of time. And after google the error, i finally find the solution to fix it, below is the steps.

1. Fix Python Certificate Verify Failed Error Steps.

  1. Open mac os finder, then click Applications —> Python 3.7 folder to expand it. Your python may has different version.
    macos-finder-applications-python3.7-Install Certificates command
  2. Double click the Install Certificates.command file to run it. It will open another popup terminal window and show below command execution output text.
    Last login: Mon Jun 24 15:53:52 on ttys002
    /Applications/Python\ 3.7/Install\ Certificates.command ; exit;
    songs-MacBook-Pro:~ songzhao$ /Applications/Python\ 3.7/Install\ Certificates.command ; exit;
     -- pip install --upgrade certifi
    Requirement already up-to-date: certifi in /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages (2019.6.16)
     -- removing any existing file or link
     -- creating symlink to certifi certificate bundle
     -- setting permissions
     -- update complete
    Saving session...
    ...copying shared history...
    ...saving history...truncating history files...
    [Process completed]
  3. Close the popup window when the command run complete successfully. Now run the python code again, the Certificate Verify Failed Error will disappear.
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