How to Hang Up Currently Active Twilio Phone Calls with Python

You can hang up all currently in progress, ringing or queued Twilio phone calls using Python with the following steps. First, install Virtualenvwrapper to manage virtual environments and then create a virtual environment for your project, installing Twilio inside it. You'll need to set your Account SID and Auth Token as environment variables before running the script. The script uses `TwilioRestClient` to iterate over calls in different statuses (queued, ringing, or in progress) and hang up each call using the `hangup()` method. To make this process more convenient, you can turn it into a shell command that runs the script with a virtual environment activated.