The absence of python-pyutil and python-zbase32 does not have any affect on Tahoe-LAFS. python-zfec uses those two packages for its command-line scripts, but Tahoe-LAFS doesn't use python-zfec's command-line scripts, only its actual Python API. So python-pyutil and python-zbase32 are irrelevant to Tahoe-LAFS.
net-tools is indeed a dependency of Tahoe-LAFS. Regards, Zooko -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org