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Re: libreadline

On Sat, May 04, 2002 at 07:40:59PM +0200, Gregor Hoffleit wrote:
> Therefore, as long a user doesn't import the socket module in an
> interactive session, it never happens that both the readline library
> and the OpenSSL library are linked into the same program.
> A switch to editline (if it was feasible technically) is no solution,
> since it is well possible that there are/will be other Python extension
> modules in Debian which link with other GPL libraries. This is a
> fundamental problem.
> Again, I see that there's a potential problem, but where exactly is the
> borderline (I guess that means where do we want to draw a borderline ?).
> A few questions:
> (1) How about this: I ship two versions of _socket.so in the python2.1
> package: One is linked with OpenSSL, the other doesn't include the SSL
> support. Upon loading, socket.py decides whether the interpreter is
> already linked with libreadline, and if that's the case, it imports the
> SSL-less _socket.so. Vice-versa with the readline module: It checks
> whether the interpreter is linked with the libssl, and if that's the
> case, it fails to import.
> This would legally and morally satisfy the GPL, right ?
> (2) If we shipped python2.1 with an SSL-less _socket.so, and
> alternatively distributed a python2.1-ssl package, which provides a
> SSL-enabled _socket.so, would that change anything ?
> (2b) If the python2.1-ssl package included a note of warning, and
> perhaps a description how to optionally (!) disable the readline module,
> would that be better than (2) ?
> (2c) If the installation of python2.1-ssl would remove the readline
> module, that should definitely satisfy the GPL, correct ?
(3) Link _socket.so with GnuTLS instead of OpenSSl. I don't know how
    feasible this is. 

Jeroen Dekkers
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