Certifi: Python SSL Certificates

Certifi provides Mozilla's carefully curated collection of Root Certificates for validating the trustworthiness of SSL certificates while verifying the identity of TLS hosts. It has been extracted from the Requests project.

Installation

certifi is available on PyPI. Simply install it with pip:

$ pip install certifi

Usage

To reference the installed certificate authority (CA) bundle, you can use the built-in function:

>>> import certifi

>>> certifi.where()
'/usr/local/lib/python3.7/site-packages/certifi/cacert.pem'

Or from the command line:

$ python -m certifi
/usr/local/lib/python3.7/site-packages/certifi/cacert.pem

Enjoy!

Addition/Removal of Certificates

PG&E Certifi adds support for overriding the root certificate bundle using the CERT_PATH environment variable, for example:

$ export CERT_PATH=~/etc/CombinedCA.cer
$ python -c "import certifi; print(certifi.where())"
/Users/K0SF/etc/CombinedCA.cer