TypeError: 'NoneType' object is not subscriptable

[cristydavidd]

TypeError: 'NoneType' object is not subscriptable

The error is self-explanatory. You are trying to subscript an object which you think is a list or dict, but actually is None (i.e: the object has no value). This means that you tried to do:

None[something]

Here you attempted to index an object that doesn’t have that functionality. You might have noticed that the method sort() that only modify the list have no return value printed – they return the default None. This is a design principle for all mutable data structures in Python.

This ‘NoneType’ object is not subscriptable is the one thrown by python when you use the square bracket notation object[key] where an object doesn’t define the getitem method.

buran write Sep-19-2022, 07:06 AM:
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