trepan/lib/display.py
def all(self):
        """List all display items; return 0 if none"""
        found = False
        s = []
        for display in self.list:
            if not found:
                s.append("""Auto-display expressions now in effect:
Num Enb Expression""")
                found = True
                pass
            s.append(display.format())
        return s
def all(self):
        """List all display items; return 0 if none"""
        found = False
        s = []
        for display in self.list:
            if not found:
                s.append("""Auto-display expressions now in effect:
Num Enb Expression""")
                found = True
                pass
            s.append(display.format())
        return s
List all display items; return 0 if none