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class Vehicle:
    pass

class Car(Vehicle):
    pass

class Bike(Vehicle):
    pass

my_car = ""
my_bike = Bike()

print("isinstance(my_car, Car):", isinstance(my_car, Car))
print("isinstance(my_car, Vehicle):", isinstance(my_car, Vehicle))
print("isinstance(my_car, Bike):", isinstance(my_car, Bike))

print()

print("isinstance(my_bike, Bike):", isinstance(my_bike, Bike))
print("isinstance(my_bike, Vehicle):", isinstance(my_bike, Vehicle))
print("isinstance(my_bike, Car):", isinstance(my_bike, Car))

# Checking if an Object is an Instance of a Class

How can you determine if a particular object is an instance of a specific class?

This can be done using the built-in `isinstance()` function.

<br />

## How to Use isinstance()

The `isinstance()` function is used as follows:

```python title="How to Use isinstance()"
isinstance(object, class)
```

This function returns a value based on the following conditions:

- It returns `True` if the object is an instance of the specified class, or an instance of a subclass that inherits from the specified class.

- It returns `False` otherwise.

<br />

## Examples of Using isinstance()

Below is an example of checking if `my_dog`, an instance of the `Dog` class, is an instance of various classes:

```python title="Example of Using isinstance()"
class Animal:
    pass

class Fish:
    pass

class Dog(Animal):
    pass

my_dog = Dog()

print(isinstance(my_dog, Dog))
# True
print(isinstance(my_dog, Animal))
# True
print(isinstance(my_dog, Fish))
# False
print(isinstance(my_dog, object))
# True
print(isinstance(my_dog, int))
# False
```

In the code above, the `my_dog` object is an instance of the `Dog` class, so `isinstance(my_dog, Dog)` returns `True`.

Additionally, since the `Dog` class inherits from the `Animal` class, `isinstance(my_dog, Animal)` also returns `True`.

However, `my_dog` is not an instance of the `Fish` class, so `isinstance(my_dog, Fish)` returns `False`.

Lastly, since the `object` class is the parent class of all classes, `isinstance(my_dog, object)` returns `True`.