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Title: Exploring Python Loops: Iterating Through Dictionary Values
Introduction:
In Python, dictionaries are powerful data structures that allow you to store and retrieve data in key-value pairs. When working with dictionaries, it's often necessary to iterate through their values to perform various operations. In this tutorial, we will explore how to loop through dictionary values using different methods in Python.
The simplest way to iterate through dictionary values is by using a for loop. Here's an example:
Output:
In this example, we use the values() method of the dictionary to obtain a view of its values, and then we iterate through this view using a for loop.
If you need both keys and values while iterating, you can use the items() method. However, for this example, we'll focus on the values:
Output:
Here, the items() method returns a view of key-value pairs, and we unpack these pairs into the variables key and value within the loop. We only print the values in this example.
While less common, you can also use a while loop to iterate through dictionary values:
Output:
In this example, we create an iterator using the iter() function and then use the next() function to retrieve values until a StopIteration exception is raised.
Conclusion:
Python provides multiple ways to loop through dictionary values, giving you flexibility based on your specific requirements. Choose the method that best suits your needs and coding style. Whether using a for loop, the items() method, or a while loop, iterating through dictionary values is a common task in Python programming.
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