list-get-example-3.6.x.py

# Download the Python helper library from twilio.com/docs/python/install
import os
from twilio.rest import Client

# Your Account Sid and Auth Token from twilio.com/user/account
# To set up environmental variables, see http://twil.io/secure
account_sid = os.environ['TWILIO_ACCOUNT_SID']
auth_token = os.environ['TWILIO_AUTH_TOKEN']

client = Client(account_sid, auth_token)

# A list of record objects with the properties described above
records = client.usage.records.list(
    category="calls-inbound", start_date="2012-09-01", end_date="2012-09-30"
)

for record in records:
    print(record.count)