Why might a oui.txt file have appeared in my home directory on my MBP?
I have a file on my computer named utils6.py. The top of the file has this comment section.


  This file is part of Scapy  See http://www.secdev.org/projects/scapy
  for more informations  Copyright (C) Philippe Biondi 
  This program is published under a GPLv2 license
  
  Copyright (C) 2005  Guillaume Valadon 
  Arnaud Ebalard 


The code has Utility functions for IPv6.  

This utility script outputs a file called oui.txt