twilio-python
Documentation
The documentation for the Twilio API can be found here.
The Python library documentation can be found here.
Versions
twilio-python uses a modified version of Semantic Versioning for all changes. See this document for details.
Supported Python Versions
This library supports the following Python implementations:
- Python 3.10
- Python 3.11
- Python 3.12
- Python 3.13
Installation
Install from PyPi using pip, a
package manager for Python.
pip3 install twilio
If pip install fails on Windows, check the path length of the directory. If it is greater 260 characters then enable Long Paths or choose other shorter location.
Don't have pip installed? Try installing it, by running this from the command
line:
curl https://bootstrap.pypa.io/get-pip.py | python
Or, you can download the source code
(ZIP) for twilio-python, and then run:
python3 setup.py install
Info
If the command line gives you an error message that says Permission Denied, try running the above commands with sudo (e.g., sudo pip3 install twilio).
Test your installation
Try sending yourself an SMS message. Save the following code sample to your computer with a text editor. Be sure to update the account_sid, auth_token, and from_ phone number with values from your Twilio account. The to phone number will be your own mobile phone.
from twilio.rest import Client
# Your Account SID and Auth Token from console.twilio.com
account_sid = "ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
auth_token = "your_auth_token"
client = Client(account_sid, auth_token)
message = client.messages.create(
to="+15558675309",
from_="+15017250604",
body="Hello from Python!")
print(message.sid)
Save the file as send_sms.py. In the terminal, cd to the directory containing the file you just saved then run:
python3 send_sms.py
After a brief delay, you will receive the text message on your phone.
Warning
It's okay to hardcode your credentials when testing locally, but you should use environment variables to keep them secret before committing any code or deploying to production. Check out How to Set Environment Variables for more information.
OAuth Feature for Twilio APIs
We are introducing Client Credentials Flow-based OAuth 2.0 authentication.
API examples here
Organisation API examples here
Use the helper library
API Credentials
The Twilio client needs your Twilio credentials. You can either pass these directly to the constructor (see the code below) or via environment variables.
Authenticating with Account SID and Auth Token:
from twilio.rest import Client
account_sid = "ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
auth_token = "your_auth_token"
client = Client(account_sid, auth_token)
Authenticating with API Key and API Secret:
from twilio.rest import Client
api_key = "XXXXXXXXXXXXXXXXX"
api_secret = "YYYYYYYYYYYYYYYYYY"
account_sid = "ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
client = Client(api_key, api_secret, account_sid)
Alternatively, a Client constructor without these parameters will
look for TWILIO_ACCOUNT_SID and TWILIO_AUTH_TOKEN variables inside the
current environment.
We suggest storing your credentials as environment variables. Why? You'll never
have to worry about committing your credentials and accidentally posting them
somewhere public.
from twilio.rest import Client
client = Client()
Specify Region and/or Edge
To take advantage of Twilio's Global Infrastructure, specify the target Region and Edge for the client:
Note: When specifying a region parameter for a helper library client, be sure to also specify the edge parameter. For backward compatibility purposes, specifying a region without specifying an edge will result in requests being routed to US1.
from twilio.rest import Client
client = Client(region='au1', edge='sydney')
A Client constructor without these parameters will also look for TWILIO_REGION and TWILIO_EDGE variables inside the current environment.
Alternatively, you may specify the edge and/or region after constructing the Twilio client:
from twilio.rest import Client
client = Client()
client.region = 'au1'
client.edge = 'sydney'
This will result in the hostname transforming from api.twilio.com to api.sydney.au1.twilio.com.
Make a Call
from twilio.rest import Client
account_sid = "ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
auth_token = "your_auth_token"
client = Client(account_sid, auth_token)
call = client.calls.create(to="9991231234",
from_="9991231234",
url="http://twimlets.com/holdmusic?Bucket=com.twilio.music.ambient")
print(call.sid)
Get data about an existing call
from twilio.rest import Client
account_sid = "ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
auth_token = "your_auth_token"
client = Client(account_sid, auth_token)
call = client.calls.get("CA42ed11f93dc08b952027ffbc406d0868")
print(call.to)
Iterate through records
The library automatically handles paging for you. Collections, such as calls and messages, have list and stream methods that page under the hood. With both list and stream, you can specify the number of records you want to receive (limit) and the maximum size you want each page fetch to be (page_size). The library will then handle the task for you.
list eagerly fetches all records and returns them as a list, whereas stream returns an iterator and lazily retrieves pages of records as you iterate over the collection. You can also page manually using the page method.
page_size as a parameter is used to tell how many records should we get in every page and limit parameter is used to limit the max number of records we want to fetch.
Use the list method
from twilio.rest import Client
account_sid = "ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
auth_token = "your_auth_token"
client = Client(account_sid, auth_token)
for sms in client.messages.list():
print(sms.to)
client.messages.list(limit=20, page_size=20)
This will make 1 call that will fetch 20 records from backend service.
client.messages.list(limit=20, page_size=10)
This will make 2 calls that will fetch 10 records each from backend service.
client.messages.list(limit=20, page_size=100)
This will make 1 call which will fetch 100 records but user will get only 20 records.
Asynchronous API Requests
By default, the Twilio Client will make synchronous requests to the Twilio API. To allow for asynchronous, non-blocking requests, we've included an optional asynchronous HTTP client. When used with the Client and the accompanying *_async methods, requests made to the Twilio API will be performed asynchronously.
from twilio.http.async_http_client import AsyncTwilioHttpClient
from twilio.rest import Client
async def main():
account_sid = "ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
auth_token = "your_auth_token"
http_client = AsyncTwilioHttpClient()
client = Client(account_sid, auth_token, http_client=http_client)
message = await client.messages.create_async(to="+12316851234", from_="+15555555555",
body="Hello there!")
asyncio.run(main())
Enable Debug Logging
Log the API request and response data to the console:
import logging
client = Client(account_sid, auth_token)
logging.basicConfig()
client.http_client.logger.setLevel(logging.INFO)
Log the API request and response data to a file:
import logging
client = Client(account_sid, auth_token)
logging.basicConfig(filename='./log.txt')
client.http_client.logger.setLevel(logging.INFO)
Handling Exceptions
Version 8.x of twilio-python exports an exception class to help you handle exceptions that are specific to Twilio methods. To use it, import TwilioRestException and catch exceptions as follows:
from twilio.rest import Client
from twilio.base.exceptions import TwilioRestException
account_sid = "ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
auth_token = "your_auth_token"
client = Client(account_sid, auth_token)
try:
message = client.messages.create(to="+12316851234", from_="+15555555555",
body="Hello there!")
except TwilioRestException as e:
print(e)
Generating TwiML
To control phone calls, your application needs to output TwiML.
Use twilio.twiml.Response to easily create such responses.
from twilio.twiml.voice_response import VoiceResponse
r = VoiceResponse()
r.say("Welcome to twilio!")
print(str(r))
<?xml version="1.0" encoding="utf-8"?>
<Response><Say>Welcome to twilio!</Say></Response>
Other advanced examples
- Learn how to create your own custom HTTP client
Docker Image
The Dockerfile present in this repository and its respective twilio/twilio-python Docker image are currently used by Twilio for testing purposes only.
Getting help
If you need help installing or using the library, please check the Twilio Support Help Center first, and file a support ticket if you don't find an answer to your question.
If you've instead found a bug in the library or would like new features added, go ahead and open issues or pull requests against this repo!
