Lerner Consulting BlogReuven Lerner1 min readintermediate
Python callables: Any object that defines __call__
Summary
A callable in Python is any object that implements `__call__`. The post shows a minimal class with `__call__` and notes that the built‑in `callable()` checks for that method.
- Callable isn’t limited to functions or classes; any object with a `__call__` method qualifies.
- `callable(obj)` returns `True` if `obj.__call__` exists.
Understanding that any object can be made callable lets you design flexible APIs (e.g., function‑like objects, lazy evaluation, or strategy objects) without relying on plain functions.
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