python2.7 pip install fails with SSLError

[Daniel J. Luke]

On Mar 15, 2022, at 9:10 AM, Steven Smith <steve.t.smith at gmail.com> wrote:
> I haven’t been able to identify the correct incantation that will point pip at a CA chain that avoids this issue, whether caused by an old LetsEncrypt cert or some other old cert.
> 
> For example, this command using --cert along with an up-to-date curl-ca-bundle (that addresses the LetsEncrypt cert issue) fails with the same error:
> 
>> pip-2.7 install --cert /opt/local/etc/openssl/cert.pem -I --user setuptools

IIRC pip will respect a CA bundle set in the REQUESTS_CA_BUNDLE environment variable.

-- 
Daniel J. Luke