> I have fixed this problem (on my local machine) by updating both
> python-biopython and seqmagick. I will send patches soon.

It turns out that updating python-biopython breaks too many other
dependent packages. And, some of them take too long to reasonably build
on my machine of relatively humble specifications. So, I'm afraid I have
to bail out on this promise. Sorry!

Regards,
Arun