Django Signals

Django Signals are a way for different parts of a web application to communicate and respond to events without being tightly coupled. Think of it like a notification system: when something happens (like a user signs up), a signal is emitted. Other parts of the application can listen for that signal and automatically perform actions in response (such as sending a welcome email). This approach promotes modularity, making the code easier to maintain and extend, as components can react to events independently without direct dependencies.