How to make Python use CA certificates from Mac OS TrustStore?

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This is also a problem in Python 3.6 with MacOS Sierrra. I know your use case is different. But I stumbled upon this thread while investigating this problem. So if anyone is also having this article is worth checking out:

http://www.cdotson.com/2017/01/sslerror-with-python-3-6-x-on-macos-sierra/

In a nutshell: Python 3.6 does not rely on MacOS’ openSSL anymore. It comes with its own openSSL bundled and doesn’t have access on MacOS’ root certificates.

You have two options:

Run an install command shipped with Python 3.6

cd /Applications/Python\ 3.6/
./Install\ Certificates.command

or

Install the certifi package with

pip install certifi

I chose the first option and it worked.

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