Alexander Finkel added the comment:
Thanks for the responses.
I'm afraid I was looking at the Python 3.3 source code on my desktop, it looks
like the problem was fixed in the Mercurial repo about 10 months ago by
https://hg.python.org/cpython/rev/f7508a176a09
Marked this issue as a dupl
New submission from Alexander Finkel:
I encountered a performance problem using the ipaddr library to merge over
1 network addresses. I sent a patch upstream to fix it, and that patch has
been merged:
https://github.com/google/ipaddr-py/commit/6504b47a02739e853043f0a184f3c39462293e5c
