Do you use the Protocol from the typing module in your Python projects?

Yes, I use Protocol from the typing module in Python to define interfaces without inheritance. Protocol allows describing a set of methods and attributes that a class must implement, which is convenient for static typing and interface compliance checking.

Example of using Protocol:

from typing import Protocol

class SupportsClose(Protocol):
    def close(self) -> None:
        ...

class Resource:
    def close(self) -> None:
        print("Resource closed")

def cleanup(resource: SupportsClose) -> None:
    resource.close()

res = Resource()
cleanup(res)  # Works because Resource implements the close method

Thus, Protocol helps write more flexible and type-safe code.