Soon after upgrading to Fedora 11, Deluge would not start. It turns out that a missing include statement in my /usr/lib/deluged was causing it to fail. Adding a import zlib fixed it for me.
My /usr/lib/deluged:
#!/usr/bin/python
# EASY-INSTALL-ENTRY-SCRIPT: 'deluge==1.1.9','console_scripts','deluged'
__requires__ = 'deluge==1.1.9'
import sys
import zlib
from pkg_resources import load_entry_point
sys.exit(
load_entry_point('deluge==1.1.9', 'console_scripts', 'deluged')()
# EASY-INSTALL-ENTRY-SCRIPT: 'deluge==1.1.9','console_scripts','deluged'
__requires__ = 'deluge==1.1.9'
import sys
import zlib
from pkg_resources import load_entry_point
sys.exit(
load_entry_point('deluge==1.1.9', 'console_scripts', 'deluged')()
