Dictionary data type in python| Python Videos for Beginners in Urdu #12
Hello and welcome to this video about the dictionary data type in Python!
Dictionaries are one of the most versatile and useful data structures in Python. They allow you to store collections of data that are indexed by keys instead of numerical positions. This makes them perfect for modeling real-world relationships between entities, such as mapping a person's name to their age or their email address to their phone number.
In Python, dictionaries are created using curly braces {} and key-value pairs separated by colons:
To access a value in a dictionary, you can use the corresponding key as an index.
You can also add, remove, and modify key-value pairs in a dictionary using the corresponding methods: dict[key] = value to add or update a value, del dict[key] to remove a key-value pair, and dict.pop(key) to remove and return a value.
There are many other useful operations you can perform on dictionaries in Python, such as iterating over the keys, values, or items of a dictionary, merging two dictionaries using the update method, or checking if a key or value is present in a dictionary using the in operator.
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