Run dialog checklist

def checklist(self):
        """Run dialog checklist
        """
        choice = []
        for item in self.data:
            choice.append((item, "", self.status))
        code, self.tags = self.d.checklist(
            text=self.text, height=20, width=65, list_height=13,
            choices=choice, title=self.title, backtitle=self.backtitle)
        if code == "ok":
            self.unicode_to_string()
            return self.ununicode
        if code in ["cancel", "esc"]:
            self.exit()