Select only those pseudopotentials for which condition is True.
        Return new class:`PseudoTable` object.

        Args:
            condition:
                Function that accepts a :class:`Pseudo` object and returns True or False.

def select(self, condition):
        """
        Select only those pseudopotentials for which condition is True.
        Return new class:`PseudoTable` object.

        Args:
            condition:
                Function that accepts a :class:`Pseudo` object and returns True or False.
        """
        return self.__class__([p for p in self if condition(p)])