[issue23857] Make default HTTPS certificate verification setting configurable

[Marc-Andre Lemburg]

Marc-Andre Lemburg added the comment:

Those are nice ideas, but you are forgetting two important points:

 * browsers are typically only being used by single users,
   applications by potentially hundreds or thousands of users

 * how should the poor sys admin who's task it is to keep Python
   up to date know which SSL certs to add to the trust store ?

E.g. assume your application fetches user comments for sentiment
analysis from a few thousand sites, or gathers status updates
from a few hundred routers and switches you have installed
at your site, or even more difficult: an application which
tries to map your IT world of a few thousand network nodes,
scanning port 443 for useful information.

For eGenix PyRun we have now implemented an env var PYRUN_HTTPSVERIFY
which can be set to 0 to disable the checks and revert back to
Python 2.7.8 standards, if necessary, on a per process basis.

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<http://bugs.python.org/issue23857>
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