[uilib] soup2xhtml uses now lxml.html.Cleaner
The lxm cleaner class let you configure more easily the allowed tag elements in parsed content.
Caveats:
- attributes in elements are not dropped (and html layout can be broken if css classes are reused)
- root tag element in snippet is buggy
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)