In object-oriented programming, the dual mechanism of `__repr__` and `__str__` methods establishes a formal distinction between programmer-readable (canonical) and user-readable (informative) string representations of objects. The core principle dictates that `__repr__` serves as the primary source for object representation, utilized by the built-in `str()` function, `print()`, and the interactive interpreter shell due to the default delegation behavior of the `__str__` method. Within Python's object model, defining `__repr__` is a mandatory requirement for customizing object identity, while defining `__str__` provides an optional override to create distinct human-readable descriptions without affecting the canonical representation used for debugging and code introspection.
In object-oriented programming, the dual mechanism of `__repr__` and `__str__` methods establishes a formal distinction between programmer-readable (canonical) and user-readable (informative) string …