235 

   235 

   236 def parents(repo, subset, x):

   236 def parents(repo, subset, x):

   237     """``parents([set])``

   237     """``parents([set])``

   238     The set of all parents for all changesets in set, or the working directory.

   238     The set of all parents for all changesets in set, or the working directory.

   239     """

   239     """

   241     if x is None:

   240     if x is None:

   242         ps = tuple(p.rev() for p in repo[x].parents())

   241         ps = tuple(p.rev() for p in repo[x].parents())

   243         return [r for r in subset if r in ps]

   242         return [r for r in subset if r in ps]

   244 

   243 

   245     ps = set()

   244     ps = set()