Understanding Callable Objects in Python
Callable is a Python object that can be called like a function. It is an object that has a `__call__` method, which is the method that is called when the object is invoked.
In other words, a callable object is an object that can be treated as a function, and can be called with arguments just like a regular function.
Here's an example of a simple callable object in Python:
```
class MyCallable:
def __init__(self):
pass
def __call__(self, arg1, arg2):
return "Hello, world!"
```
This is a simple class that has a `__call__` method that takes two arguments, `arg1` and `arg2`. When we call this object, it will return the string "Hello, world!".
We can call this object like a function by using the `()` operator:
```
my_callable = MyCallable()
print(my_callable("apple", "banana")) # Output: Hello, world!
```
In this example, we create an instance of the `MyCallable` class and call it with the arguments "apple" and "banana". The `__call__` method will be called with these arguments, and it will return the string "Hello, world!".
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