python dictionary fromkeys example
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In Python, dictionaries are a powerful data structure that allows you to store and organize data in key-value pairs. The fromkeys method is a handy dictionary method that creates a new dictionary with specified keys and a default value for each key. This tutorial will guide you through the fromkeys method with examples to help you understand its usage and benefits.
The syntax for the fromkeys method is as follows:
Let's go through some examples to illustrate how to use the fromkeys method effectively.
Output:
In this example, we used the fromkeys method to create a dictionary named fruit_dict with keys from the keys_list and assigned the default value of None to each key.
Output:
Here, we provided a custom default value of 0 for each key in the dictionary created using the fromkeys method.
Output:
In this example, we used the fromkeys method with the range function to create a dictionary with keys ranging from 0 to 4, and each key is assigned the default value True.
The fromkeys method is a convenient way to create dictionaries with specified keys and default values. Whether you need to initialize a dictionary with default values or set up a dictionary with a specific set of keys, the fromkeys method is a useful tool in your Python programming toolkit.
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