Saturday 6 April 2024

Python Coding challenge - Day 168 | What is the output of the following Python Code?

 

Code: 

my_dict = {'a': 1, 'b': 2, 'c': 3}

value = my_dict.get('d', None)

print(value)

Solution and Explanation:

Let's break down each line of the code:

my_dict = {'a': 1, 'b': 2, 'c': 3}: This line creates a dictionary called my_dict with three key-value pairs. Each key represents a letter ('a', 'b', 'c') and each corresponding value is an integer (1, 2, 3).

value = my_dict.get('d', None): This line retrieves the value associated with the key 'd' from the dictionary my_dict using the .get() method. If the key 'd' exists in the dictionary, it returns the associated value. If the key doesn't exist, it returns the default value provided, which in this case is None.

print(value): This line prints the value stored in the variable value. If the key 'd' exists in the dictionary, it will print the corresponding value. If the key doesn't exist, it will print None, as that is the default value provided.

So, in summary, the code first creates a dictionary my_dict, then it attempts to retrieve the value associated with the key 'd' from this dictionary. Finally, it prints the retrieved value (or None if the key doesn't exist in the dictionary).

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