Getting Your Raspberry Pi Serial Number Using Python

Solution

Bash/Perl

In Bash, it is very simple to extract… by using Perl. Use

cat /proc/cpuinfo | perl -n -e '/^Serial[ ]*: ([0-9a-f]{16})$/ && print "$1\n"'

For example,

$ cat cpuinfo | perl -n -e '/^Serial[ ]*: ([0-9a-f]{16})$/ && print "$1\n"'

000000000000000d

Python

Raspberry Spy provide a very useful Python example.

  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

References

Licence key product pages

Raspberry Spy: Getting Your Raspberry Pi Serial Number Using Python