python dict update key value

Updating Key-Value Pairs in Python Dictionary: A Comprehensive Tutorial
Python dictionaries are versatile data structures that allow you to store and manage key-value pairs efficiently. In many cases, you might need to update the values associated with existing keys in a dictionary. In this tutorial, we'll explore different methods to update key-value pairs in Python dictionaries with code examples.
The update() method is a convenient way to modify a dictionary by adding key-value pairs from another dictionary or an iterable of key-value pairs.
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You can also update the value of a specific key by directly assigning a new value.
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The setdefault() method provides a way to update a value for a specific key if the key is present; otherwise, it adds the key with the specified value.
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You can use dictionary comprehension to create a new dictionary with updated values.
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These methods provide flexibility in updating key-value pairs based on your specific needs. Choose the one that best fits your use case and coding style.
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