Extract serial number out of .spx files generated by System Profiler on macOS

spx_serial.py

#!/usr/bin/python

import plistlib, sys

# Grab the path to the spx file
file_path = sys.argv[1]

# ingest the spx (which is a plist)
file_data = plistlib.readPlist(file_path)

# find the item within it that has the following values:
# _parentDataType: SPRootDataType
# _dataType: SPHardwareDataType

candidates = []

for x in file_data:
    if x.get('_parentDataType', None) == 'SPRootDataType':
        if x.get('_dataType', None) == 'SPHardwareDataType':
            candidates.append(x)

# Only emit a serial if we have one
for x in candidates:
    try:
        print x['_items'][0]['serial_number']
    except:
        pass

That is a super useful script.

Can you add a few more lines so that one can return information such as hard drive size etc?

I've tried this but am getting no success...

candidates2 =[]
for y in file_data:
if y.get('_parentDataType', None) == 'SPRootDataType':
if x.get('_dataType', None) == 'SPSerialATADataType':()
candidates2.append(y)

for y in candidates2:
print y['_items'][0]['size_in_bytes']

Thanks.