cbtop doesn't support python 2.6

Traceback (most recent call last):
File "cbtop", line 9, in
from libcbtop.main import main
File "priority15/libcbtop/main.py", line 9, in
import visit_cb as vc
File "priority15/libcbtop/visit_cb.py", line 11, in
from tabula.table import Table
File "virtualenvs/priority15/lib/python2.6/site-packages/tabula/table.py", line 6, in
from section import Section
File "virtualenvs/priority15/lib/python2.6/site-packages/tabula/section.py", line 323
{k:v-1 for k,v in self.irt.iteritems() if v > row_num})
^
SyntaxError: invalid syntax