Typeerror: ‘namespace’ object is not subscriptable

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Explanation of ‘TypeError: ‘namespace’ object is not subscriptable’

The error message “TypeError: ‘namespace’ object is not subscriptable” occurs when you try to access or
subscript an object that is not subscriptable. In Python, the term “subscriptable” refers to objects that
support indexing, such as lists, tuples, and dictionaries.

Namespace objects are generally used to hold a collection of related attributes. However, unlike dictionaries,
namespace objects do not support item access using square brackets ([]). Hence, if you try to use square
brackets to access or modify attributes of a namespace object, you will encounter this error message.

Example:


        # Creating a namespace object
        class NamespaceObject:
            def __init__(self, **kwargs):
                self.__dict__.update(kwargs)

        obj = NamespaceObject(a=10, b=20, c=30)

        # Trying to access attribute 'a' using square brackets (incorrect way)
        print(obj['a'])  # Raises TypeError: 'namespace' object is not subscriptable
        
        # Trying to modify attribute 'b' using square brackets (incorrect way)
        obj['b'] = 25  # Raises TypeError: 'namespace' object is not subscriptable

In the example above, we create a namespace object with attributes ‘a’, ‘b’, and ‘c’. Then, we try to access
attribute ‘a’ and modify attribute ‘b’ using square brackets, resulting in the mentioned TypeError.
To access or modify attributes of a namespace object, you should instead use dot notation as follows: 


        # Correct way to access or modify attributes of a namespace object
        print(obj.a)  # Output: 10
        obj.b = 25

        print(obj.b)  # Output: 25

By using dot notation, we can access and modify the attributes of a namespace object without encountering the
‘namespace’ object is not subscriptable error.

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