packages/vaex-core/vaex/dataframe.py
def _graphviz(self, dot=None):
        """Return a graphviz.Digraph object with a graph of all virtual columns"""
        from graphviz import Digraph
        dot = dot or Digraph(comment='whole dataframe')
        root_nodes = self._root_nodes()
        for column in root_nodes:
            self[column]._graphviz(dot=dot)
        return dot
def _graphviz(self, dot=None):
        """Return a graphviz.Digraph object with a graph of all virtual columns"""
        from graphviz import Digraph
        dot = dot or Digraph(comment='whole dataframe')
        root_nodes = self._root_nodes()
        for column in root_nodes:
            self[column]._graphviz(dot=dot)
        return dot
Return a graphviz.Digraph object with a graph of all virtual columns