azure subscription cost

cost.py

import datetime
import json
from subprocess import check_output

end = datetime.datetime.now() + datetime.timedelta(days=1)
start = end - datetime.timedelta(days=31)
end_fmt = end.strftime("%Y-%m-%d")
start_fmt = start.strftime("%Y-%m-%d")

cmd = (
    "az consumption usage list --output json --subscription REPLACE_WITH_SUBSCRIPTION"
).split(" ")

data = check_output(cmd + ["-s", start_fmt, "-e", end_fmt])
cost = json.loads(data)
sum = 0
for i in cost:
    sum += float(i["pretaxCost"])
print("30 day cost: %.2f EUR" % sum)