how to set IP packet "options"?

[xingdouchen]

1 >>> a=IP() 2 >>> a.show 3 <bound method Packet.show of <IP |>> 4 >>> a.show() 5 ###[ IP ]### 6 version= 4 7 ihl= None 8 tos= 0x0 9 len= None 10 id= 1 11 flags= 12 frag= 0 13 ttl= 64 14 proto= hopopt 15 chksum= None 16 src= 127.0.0.1 17 dst= 127.0.0.1 18 \options
19 >>> a.options='8.8.8.8,9.9.9.9' 20 >>> a.show() 21 ###[ IP ]### 22 version= 4 23 ihl= None 24 tos= 0x0 25 len= None 26 id= 1 27 flags= 28 frag= 0 29 ttl= 64 30 proto= hopopt 31 chksum= None 32 src= 127.0.0.1 33 dst= 127.0.0.1 34 \options
35 Traceback (most recent call last): 36 File "", line 1, in 37 File "/usr/local/lib/python3.6/site-packages/scapy3k/packet.py", line 864, in show 38 fvalue.show(indent=indent, label_lvl=label_lvl+lvl+" |") 39 AttributeError: 'str' object has no attribute 'show' 40 >>>

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HI~ I want to build a IP packet and test the \options\ function, but I don't know how to set the \options, can someone help give me some example? Thanks~