self.altlist()
print "!!! Error: circular dependencies:"
print
# Reduce the noise level to a minimum via elimination of root
# nodes.
while True:
root_nodes = mygraph.root_nodes(
ignore_priority=DepPriority.SOFT)
if not root_nodes:
break
for node in root_nodes:
mygraph.remove(node)
mygraph.debug_print()
sys.exit(1)
