Sen2Cor Version 2.3.0, if you observe this issue: "There was a problem confirming the ssl certificate", here is how to solve it

This is the issue you may observe, when you work behind an authenticating proxy server and want to install Sen2Cor:

Could not fetch URL There was a problem confirming the ssl certificate: EOF occurred in violation of protocol (_ssl.c:590) - skipping
Could not find a version that satisfies the requirement glymur==0.8.6 (from versions: )
No matching distribution found for glymur==0.8.6

It is possible to configure the proxy for pip by creating an ini file, to overcome this issue:

[UserFolder]/pip/pip.ini with the content:
trusted-host =
proxy = http://user:password@proxy:port

more details on:

please nothe that this is not an issue of Sen2Cor, but on Network restictions.
However, the installation of Glymur is a key feature, otherwise Sen2Cor will not work properly.

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