Question

Keys of a dictionary cannot be: *

1. Python stirngs

2.Lists

3.Numbers

4.Tuples

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Answer 1

Answer:

Python Strings - W3Schools

Strings are Arrays Like many other popular programming languages, strings in Python are arrays of bytes representing unicode characters. However, Python does not have a character data type, a single character is simply a string with a length of 1. Square brackets can be used to access elements of the string.

Slicing Strings

Answer 2

lists can't be used as the key of dictionary.

The values in a dictionary can be any type. The keys can be any immutable type. You cannot use a list as a key because a list is mutable. Similarly, you cannot use a tuple as a key if any of its elements are lists.

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