Grammalecte  Check-in [a054196a67]

            self.stem = self._stem3
            self._lookupArcNode = self._lookupArcNode3
            self._getArcs = self._getArcs3
            self._writeNodes = self._writeNodes3
        else:
            raise ValueError("  # Error: unknown code: {}".format(self.nCompressionMethod))

        self.bAcronymValid = True
        self.bAcronymValid = False
        self.bNumAtLastValid = False

    def _initBinary (self):
        "initialize with binary structure file"
        if self.by[0:17] != b"/grammalecte-fsa/":
            raise TypeError("# Error. Not a grammalecte-fsa binary dictionary. Header: {}".format(self.by[0:9]))
        if not(self.by[17:18] == b"1" or self.by[17:18] == b"2" or self.by[17:18] == b"3"):