title: Scapy.all import * does not work
body: <p>So, I wrote a little script in Ubuntu for scapy. </p>
  
  <pre><code>#!/usr/bin/env python
  import sys
  #from scapy.all import *
  try 
     import scapy
     except ImportError:
       del scapy
       from scapy import all as scapy
  i= IP()
  t= TCP()
  i.dst='192.168.56.100'
  t.dport=22
  pakket=i/t
  answered,unanswered=sr(pakket)
  answered.nsummary()
  </code></pre>
  
  <p>i wrote the 'try' because of another topic here (tried it as a solution).
  My current output with this code is the following</p>
  
  <pre><code>Traceback (most recent call last):
  File "./scapy.py", line 5, in &lt;module&gt;
  import scapy
  File "/home/nicholas/scapy.py", line 9, in &lt;module&gt;
  i=IP()
  NameError: name 'IP' is not defined
  </code></pre>
  
  <p>when trying it just with from scapy.all import * withouth the 'try'.</p>
  
  <pre><code>Traceback (most recent call last):
  File "./scapy.py", line 3, in &lt;module&gt;
  from scapy.all import *
  File "/home/nicholas/scapy.py", line 3, in &lt;module&gt;
  from scapy.all import *
  ImportError: No module named all
  </code></pre>
  
  <p>I tried different ways of importation found on Google but it still doesn't work. Could anyone please tell me what I'm doing wrong? (don't mind the indentation of this post)</p>