How to get CPU serial number on Windows using Python?

Question

I wrote a program in Python-3.6.2 on Windows 10. I want get the CPU serial number.

Here is my code:

def getserial():
    # Extract serial from cpuinfo file
    cpuserial = "0000000000000000"
    try:
        f = open('/proc/cpuinfo','r')
        for line in f:
            if line[0:6]=='Serial':
                cpuserial = line[10:26]
        f.close()
    except:
        cpuserial = "ERROR000000000"
  return cpuserial

print(getserial())

When I run the program, it prints: ERROR000000000.

How do I fix it?

@naghi. Do you need this to only work on windows, and not linux, osx, etc? If so, you should make this clear in your question. — ekhumoro
– ekhumoro, Commented Sep 9, 2017 at 14:10

Laurent LAPORTE · Accepted Answer · 2017-09-09 13:11:36Z

2

Your code doesn't let any exception raised. So, you don't see the error: There is no '/proc/cpuinfo' file on Windows.

I have rewrite your code like that:

def getserial():
    # Extract serial from cpuinfo file
    with open('/proc/cpuinfo','r') as f:
        for line in f:
            if line[0:6] == 'Serial':
                return line[10:26]
        return "0000000000000000"

First, I have a with statement to use the file context manager: whenever an exception is raised or not, your file will be closed.

And I simplify the loop: if it found a "Serial" entry, it returns the value.

EDIT

If you have python with a version >= 2.6 you can simply use

import multiprocessing

multiprocessing.cpu_count()

http://docs.python.org/library/multiprocessing.html#multiprocessing.cpu_count

EDIT2

The best solution I found to get the "cpuinfo" is with the py-cpuinfo library.

import cpuinfo
info = cpuinfo.get_cpu_info()
print(info)

But, I think that "Serial" entry is not standard. I can't see it on classic systems.

edited Sep 9, 2017 at 13:11

answered Sep 9, 2017 at 12:57

Laurent LAPORTE

23.2k7 gold badges64 silver badges111 bronze badges

Sign up to request clarification or add additional context in comments.

5 Comments

naghi Over a year ago

,how get cpuserial in windows?

Laurent LAPORTE Over a year ago

@naghi: The title is ”How get cpu cpuserial in python?” (not Windows). But I understand its frustration. There are several flaws in its question.

naghi Over a year ago

i want use it Unique identifier as user in windows in program,what is your offer?

Laurent LAPORTE Over a year ago

@naghi: You could have it's serial number with cpuinfo.get_cpu_info().

Laurent LAPORTE Over a year ago

Even if my links point to the Python 3.6.2 version, I'm pretty sure they are backward compatible… So give it a try!

Collectives™ on Stack Overflow

How to get CPU serial number on Windows using Python?

1 Answer 1

5 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

5 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related