Exception while trying to sniff packets

[achanda]

I'm trying to use scapy to sniff packets, here is what I get

>>> sniff(filter="icmp and host 66.35.250.151", count=2)
WARNING: fileno: pcapy API does not permit to get capure file descriptor. Bugs ahead! Press Enter to trigger packet reading
WARNING: fileno: pcapy API does not permit to get capure file descriptor. Bugs ahead! Press Enter to trigger packet reading

WARNING: Unable to guess datalink type (interface=None linktype=0). Using Raw
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/usr/local/lib/python2.7/site-packages/scapy/sendrecv.py", line 586, in sniff
    p = s.recv(MTU)
  File "/usr/local/lib/python2.7/site-packages/scapy/arch/pcapdnet.py", line 145, in recv
    pkt = self.ins.next()
  File "/usr/local/lib/python2.7/site-packages/scapy/arch/pcapdnet.py", line 92, in next
    s,us = h.getts()
AttributeError: 'NoneType' object has no attribute 'getts'

Here are the versions

$ pip show scapy

---
Metadata-Version: 2.0
Name: scapy
Version: 2.3.2
Summary: Scapy: interactive packet manipulation tool
Home-page: http://www.secdev.org/projects/scapy
Author: Philippe BIONDI
Author-email: phil(at)secdev.org
Installer: pip
License: GPLv2
Location: /usr/local/lib/python2.7/site-packages
Requires: 
Classifiers:
$ pip show pcapy

---
Metadata-Version: 2.0
Name: pcapy
Version: 0.10.10
Summary: Python pcap extension
Home-page: https://github.com/CoreSecurity/pcapy
Author: CORE Security
Author-email: oss@coresecurity.com
Installer: pip
License: Apache modified
Location: /usr/local/lib/python2.7/site-packages
Requires: 
Classifiers:

[guedou]

What is your operating system ?

On Linux, there is no need to install any pcap related module. On OS X, I would suggest that you use macports or brew instead of pip to install pcap and dnet modules.

[achanda]

Thanks, installing from brew worked