parse_credential_report.py

#!/usr/bin/env python
from sys import stdin
import json
import base64

report = json.loads(stdin.read())
table = base64.b64decode(report["Content"]).splitlines()
head = table[0].split(",")
table = table[1:]

for row in iter(table):
    user = dict(zip(head, row.split(",")))
    # you now have a dictionary with keys like `user`, `mfa_active`,
    # and `password_last_changed`
    print "%s %s" % (user["user"], user["mfa_active"])