def paths_update(self, al_branchNodes):
for node in al_branchNodes:<EOL><INDENT>l_pwd       = self.l_cwd[:]<EOL>l_pwd.append(node)<EOL>self.l_allPaths.append(l_pwd)<EOL><DEDENT>return self.l_allPaths<EOL>
Add each node in <al_branchNodes> to the self.ml_cwd and
append the combined list to ml_allPaths. This method is
typically not called by a user, but by other methods in
this module.

Returns the list of all paths.