Find my computer's MAC address with python

Question

Using the function I found from a forum/thread(listed below), I can find the MAC address of my computer in python. However, this function returns the wrong MAC address. This computer has an ethernet and Wireless lan adapter. The computer I am using uses the Wireless LAN adapter. How do I find what MAC the computer is using and what the the Physical Address(MAC) of that adapter is?

This is the code I found that returns the incorrect MAC:

def get_mac():
    import uuid
    return str(':'.join(['{:02x}'.format((uuid.getnode() >> i) & 0xff) for i in range(0,8*6,8)][::-1])).upper()

If any more information is necessary, please post a comment and I will add what I can

Thank you!

govorox · Accepted Answer · 2015-09-25 08:49:11Z

2

If you're using Linux you can find the list of adapters here: /sys/class/net/

And read the MAC address of a specific interface, for example eth0, like this:

with open('/sys/class/net/eth0/address') as f:
    mac = f.read()

answered Sep 25, 2015 at 8:49

govorox

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1 Comment

jevgenij Over a year ago

Does not work for every system, some do not have sys virtual filesystem.

PersianGulf · Accepted Answer · 2014-02-23 18:08:26Z

1

from uuid import getnode as get_mac
mac = get_mac()

Note: Please consdier may be it return octet or decimal and you watch hex in output of ifconfig

answered Feb 23, 2014 at 18:08

PersianGulf

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7 Comments

ndurvasula Over a year ago

Right now I am using the exact same thing. The code I am using uses uuid.getnode() and adds colons every 2 characters

PersianGulf Over a year ago

Did you check for octet or decimal , Also check for all of interfaces, use ifconfig -a

ndurvasula Over a year ago

I am using Windows. ipconfig /all shows me my MAC address. But how do I use this in python

PersianGulf Over a year ago

>>> import os >>> os.system("ipconfig /all")

ndurvasula Over a year ago

How do I search through to find my MAC though? Would I have to use regex?

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