How does Python Dictionaries search their keys
If the Python dictionaries just iterate over their keys to check if the given keys are present or not it would take O(N) time. But python dictionaries take O(1) to check if the key is present or not. So, how dictionaries search the key, for every key it generates a hash value for the key and by this hash value, it can track its elements.
How to use a List as a key of a Dictionary in Python 3?
In Python, we use dictionaries to check if an item is present or not . Dictionaries use key:value pair to search if a key is present or not and if the key is present what is its value . We can use integer, string, tuples as dictionary keys but cannot use list as a key of it . The reason is explained below .
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