author | Dimitri Papadopoulos <dimitri.papadopoulos@cea.fr> |
Mon, 19 Oct 2015 23:39:30 +0200 | |
changeset 10948 | 3ffacbdf7e9c |
parent 10589 | 7c23b7de2b8d |
permissions | -rw-r--r-- |
from __future__ import print_function try: rtype, = __args__ except ValueError: print('USAGE: cubicweb-ctl shell <instance> detect_cycle.py -- <relation type>') print() graph = {} for fromeid, toeid in rql('Any X,Y WHERE X %s Y' % rtype): graph.setdefault(fromeid, []).append(toeid) from logilab.common.graph import get_cycles for cycle in get_cycles(graph): print('cycle', '->'.join(str(n) for n in cycle))