Make supercell force constants readable for phonopy

        Note
        ----
        Born effective charges and dielectric constant tensor are read
        from QE output file if they exist. But this means
        dipole-dipole contributions are removed from force constants
        and this force constants matrix is not usable in phonopy.

        Arguments
        ---------
        cell : PhonopyAtoms
            Primitive cell used for QE/PH calculation.
        is_full_fc : Bool, optional, default=False
            Whether to create full or compact force constants.
        parse_fc : Bool, optional, default=True
            Force constants file of QE is not parsed when this is False.
            False may be used when expected to parse only epsilon and born.

def run(self, cell, is_full_fc=False, parse_fc=True):
        """Make supercell force constants readable for phonopy

        Note
        ----
        Born effective charges and dielectric constant tensor are read
        from QE output file if they exist. But this means
        dipole-dipole contributions are removed from force constants
        and this force constants matrix is not usable in phonopy.

        Arguments
        ---------
        cell : PhonopyAtoms
            Primitive cell used for QE/PH calculation.
        is_full_fc : Bool, optional, default=False
            Whether to create full or compact force constants.
        parse_fc : Bool, optional, default=True
            Force constants file of QE is not parsed when this is False.
            False may be used when expected to parse only epsilon and born.

        """

        with open(self._filename) as f:
            fc_dct = self._parse_q2r(f)
            self.dimension = fc_dct['dimension']
            self.epsilon = fc_dct['dielectric']
            self.borns = fc_dct['born']
            if parse_fc:
                (self.fc,
                 self.primitive,
                 self.supercell) = self._arrange_supercell_fc(
                     cell, fc_dct['fc'], is_full_fc=is_full_fc)