bug#22876: Python can't use https with recent grafts

[Leo Famulari <leo@famulari.name>]

On Tue, Mar 01, 2016 at 03:59:24PM -0800, Christopher Allan Webber wrote:
> Most of Guix seems to be working just fine with the grafts support and
> grafting of openssl.  However, unlike most grafts that will be done
> probably, this one removes a feature, and that seems to be creating
> problems in Python land.
> 
>   >>> from urllib.request import HTTPSHandler
>   Traceback (most recent call last):
>     File "<stdin>", line 1, in <module>
>   ImportError: cannot import name 'HTTPSHandler'

I suspect this has to do with the error message Mark shared on #guix:
ImportError: /gnu/store/f0jzhl04iyaqv56yj92cd9bk57p3inqx-python-2.7.10/lib/python2.7/lib-dynload/_ssl.so:
undefined symbol: SSLv2_method

[,,,]

> I'm not really sure this is a problem with the new grafts system.  It
> might just be that a "fix" which tears parts of a library is going to
> cause unexpected problems in some places for ABI incompatibility
> reasons.

Yeah, I'm not surprised other packages are breaking as a result of this.

Can you give me a method to reproduce this bug? I can try building
Python against the new OpenSSL directly and see if the problem persists.

> 
> Not sure if we should just wait for the world-rebuild or what right
> now...!

I guess that grafts of compatible updates can persist for a while but in
cases like this we should probably start rebuilding...