How to Send SMS Messages With Python, Flask and Vonage

You can use Python to send SMS messages using the Vonage API. To start, you need to create a Vonage account and install the Vonage Python SDK. You then create a virtual environment and activate it before installing the SDK. Next, you import the Vonage client object and use its `send_message` method to send an SMS message. The method takes the sender ID, receiver's phone number, and the message as parameters. After sending the message, you can monitor and troubleshoot SMS delivery on the Vonage API Dashboard. To create a web application that sends SMS messages, you need to create a Flask app with a form for the user to input the phone number and message. When the user clicks the "Send SMS" button, it posts to the server.py file, which uses the Vonage client object to send the message. The application can be deployed from a code source by cloning the repository, installing dependencies, and starting the app with a command.