Python is beautiful, readable, and highly expressive. But its built-in error handling mechanism, exceptions, has a fundamental flaw: Exceptions are invisible. Take a look at this standard Python function signature: def get_user ( user_id : int ) -> User : ... Enter fullscreen mode Exit fullscreen mode What does this signature tell you? It promises to return a User . But does it? What happens if the database connection drops? What if user_id doesn't exist? What if there's a permission issue? You can’t know without digging into the implementation, hoping the docstrings are accurate, or waiting for a surprise stack trace in production. The type system provides zero guarantees about what can fail. That’s where explicit-result comes in. The Philosophy of explicit-result explicit-result is a zero-dependency, fully-typed Python library that brings Result and Option primitives to your Python code. It is designed around three core ideas: Errors should be part of the contract.…