How to fix else systax else in python? [closed]

I'm novice in python. I do this code to say if funcCode is different from 5 and 6 do this : r.append(p['ModbusADURequest'][1].startAddr) else do r.append(p['ModbusADURequest'][1]. registerAddr) but I have an error " File "parserz.py", line 868 else: ^ SyntaxError: invalid syntax"

def reg_no_list(s):
r = []
for p in s:
    if (p['ModbusADUResponse'][1].funcCode != int("0x06", 16)) and (p['ModbusADUResponse'][1].funcCode != int("0x05", 16)):

        if p.haslayer('ModbusADURequest'):
            try:
                r.append(p['ModbusADURequest'][1].startAddr)
            except AttributeError:
                pass
    return r
    else:
        r.append(p['ModbusADURequest'][1]. registerAddr)
                except AttributeError:
                    pass
        return r

Any help please ? Thanks in advance