How to Check if an Object has an Attribute in Python

Using hasattr() Function

Use Python’s built-in hasattr(object, attribute) function to return True if the object has the specified attribute, else False.

Using getattr() with Default

getattr(object, attribute, default) fetches the attribute value or returns the default if the attribute doesn't exist.

Exception Handling with try-except

Access the attribute inside a try block and catch the AttributeError in except to check its existence.

Inspecting Attributes with dir()

The dir(object) method lists all attributes. Check attribute presence by searching the list returned by dir().

Using Class’s __dict__ Attribute

For user-defined objects, inspect the __dict__ dictionary to check if the attribute exists as a key.

Inspecting with hasattr() in Combination

Combine hasattr() with additional logic (e.g., callable check) to ensure proper attribute handling for dynamic objects.