h2o-py/h2o/frame.py
def names(self):
        """The list of column names (List[str])."""
        if not self._ex._cache.names_valid():
            self._ex._cache.flush()
            self._frame(fill_cache=True)
        return list(self._ex._cache.names)
def names(self):
        """The list of column names (List[str])."""
        if not self._ex._cache.names_valid():
            self._ex._cache.flush()
            self._frame(fill_cache=True)
        return list(self._ex._cache.names)
The list of column names (List[str]).