how to install pcap in ubuntu using python

Question

this is my code :

import pcap ,struct

pack=pcap.pcap()
pack.setfilter('udp')
key=''
for recv_time,recv_data in pack:
   recv_len=len(recv_data)
   if recv_len == 102 and recv_data[42]== chr(02) and recv_data[101] == chr(03):
      print struct.unpack('>I',recv_data[49:53])[0]
      print '登陆了'
   elif recv_len == 55:
      print struct.unpack('>I',recv_data[49:53])[0]
      print '登陆了'

and i use this to install pcap : sudo apt-get install python-libpcap , it installed ,

but when i run the code , it show error :

Traceback (most recent call last):
  File "weapon.py", line 2, in <module>
    import pcap ,struct
ImportError: No module named pcap

what can i do ,

thanks

Answer 1

For me on Ubuntu 10.04 the package is called python-libpcap:

sudo apt-get install python-libpcap

Then when I do:

import pcap

It works great!

Answer 2

You need to make sure that you have pip installed.

sudo apt-get install python-pip

Then you can install pypcap:

sudo easy_install pypcap
sudo pip install pypcap

I verified it for Ubuntu 14.10.

Answer 3

I'm guessing the installed module doesn't match the version of python you're running.

Look in /usr/lib/python2.7/dist-packages/ and see if pcap is there (substituting the version you're using for 2.7).