def _copysequences(self, fromfolder, refileditems):
        """Helper for refilemessages() to copy sequences."""
        fromsequences = fromfolder.getsequences()
        tosequences = self.getsequences()
        changed = 0
        for name, seq in fromsequences.items():
            try:
                toseq = tosequences[name]
                new = 0
            except KeyError:
                toseq = []
                new = 1
            for fromn, ton in refileditems:
                if seq in fromn:
                    toseq.append(ton)
                    changed = 1
            if new and toseq:
                tosequences[name] = toseq
        if changed:
            self.putsequences(tosequences)
dataset/ETHPy150Open Southpaw-TACTIC/TACTIC/src/context/client/tactic-api-python-4.0.api04/Lib/mhlib.py/Folder._copysequences/swapped operands of `in`