python object string representation
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In Python, the _str_ and _repr_ methods allow you to define a custom string representation for your objects. This is particularly useful for debugging, logging, and providing meaningful information about your objects when printed. This tutorial will guide you through creating a custom string representation for your Python objects.
__str__: This method is called by the str() built-in function and is intended to provide a human-readable string representation of the object.
__repr__: This method is called by the repr() built-in function and is meant to provide an unambiguous string representation of the object, ideally suitable for debugging.
Let's create a simple class called Person and implement both _str_ and _repr_ methods.
In this example, _str_ returns a string suitable for display, while _repr_ returns a string that, if passed to eval(), would create a new object with the same state.
Now, let's create an instance of the Person class and print it:
You can see that str(person) invokes the _str_ method, while repr(person) invokes the _repr_ method.
Having custom string representations helps improve the readability of your code, especially when working with complex objects. It also aids in debugging by providing a clear and concise representation of the object's state.
Customizing the string representation of your objects in Python using _str_ and _repr_ methods is a powerful technique for making your code more readable and maintainable. By providing meaningful information about your objects, you can enhance your debugging and logging experience.
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