8852b00554e0e925bb39618f30bd5afdbd9c5174,bipy/core/tree.py,TreeNode,root_at,#TreeNode#Any#,187

Before Change

        return frozenset(sets)

    def root_at(self, node):
        raise NotImplementedError()

    ////// end copy like methods //////

    ////// node checks //////

After Change

            node = self.find(node)

        if not node.Children:
            raise TreeError("Can"t use a tip (%s) as the root" %
                            repr(node.Name))
        return node.unrooted_deepcopy()

    def root_at_midpoint(self):
        Return a new tree rooted at midpoint of the two tips farthest apart

Instances