How to diagnose CERTIFICATE_VERIFY_FAILED on Windows for websites working in browsers?

[Chi Hsuan Yen]

On Fri, Sep 9, 2016 at 4:18 PM, Chi Hsuan Yen <yan12125 at gmail.com> wrote:

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> On Fri, Sep 9, 2016 at 2:54 PM, dieter <dieter at handshake.de> wrote:
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>> Chi Hsuan Yen <yan12125 at gmail.com> writes:
>> > ...
>> > Thanks a lot! I just lost my direction when trying to understand how
>> > certificate verification works in Python.
>>
>> It sets things up for "OpenSSL" and then delegates all details
>> to it.
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>>
> Thanks, sounds a great start point. I'll look into OpenSSL.
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>> --
>> https://mail.python.org/mailman/listinfo/python-list
>>
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I found that OpenSSL provides an X509 callback hook that allows clients to
know why the verification process fails. Seems CPython does not use it yet.
I hope it can be added to CPython. Where should I go next, python-dev,
python-ideas or bugs.python.org? Thanks.