Binary package hint: fetchmailconf
I installed fetchmailconf via the Package Manager and when I tried to run it, it would error out. Googling the problem revealed the answer…

From: https://bugs.launchpad.net/ubuntu/+source/fetchmail/+bug/371072/+viewstatus

“I have installed fetchmailconf 6.3.9~rc2-4ubuntu1 on Ubuntu 9.04; /usr/bin/fetchmailconf — a shell script to start the real Python script — fails to start because it looks for the real fetchmailconf script in the wrong place.”

/usr/bin/fetchmailconf as installed reads:

#! /bin/sh
exec /usr/bin/python /usr/lib/`pyversions -d`/site-packages/fetchmailconf.py “$@”

Changing “site-packages” to “dist-packages” fixes the problem and allows fetchmailconf to start.