Accessing Value Inside Python Nested Dictionaries |
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Accessing Value Inside Python Nested Dictionaries
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We are given a nested dictionary and our task is to access the value inside the nested dictionaries in Python using different approaches. In this article, we will see how we can access value inside the nested dictionaries in Python. Example: Input: market = {"fruits": {"apple": 10, "orange": 40, "strawberry": 30, "grapes": 200}, "vegetables": {"carrot": 50, "beans": 100, "tomato": 70}}Output: Orange Price: 40Explanation: Orange price is accessed from the given nested dictionary and printed.Access Value Inside Python Nested DictionariesBelow are some of the ways by which we can access the value inside the Python Nested Dictionaries in Python: Using Indexing MethodUsing get() methodUsing RecursionAccess Value Inside Python Nested Dictionaries Using Square bracketsIn this example, values in the nested market dictionary are accessed using square brackets and specific keys. The prices of orange, grapes, and tomatoes are printed by navigating through the nested structure with the respective keys for fruits and vegetables. Python3 market = {"fruits": {"apple": 10, "orange": 40, "strawberry": 30, "grapes": 200}, "vegetables": {"carrot": 50, "beans": 100, "tomato": 70}} # printing the value by accessing using square brackets with key of dictionary print("Orange Price:",market["fruits"]["orange"]) print("Grapes Price:",market["fruits"]["grapes"]) print("Tomato Price:",market["vegetables"]["tomato"]) OutputOrange Price: 40 Grapes Price: 200 Tomato Price: 70 Access Value Inside Python Nested Dictionaries Using get() MethodIn this example, values in the nested market dictionary are accessed using the get() method. The prices of orange, grapes, and tomatoes are printed by chaining get() calls with the respective keys for fruits and vegetables, providing a safe way to handle potential missing keys. Python3 market = {"fruits": {"apple": 10, "orange": 40, "strawberry": 30, "grapes": 200}, "vegetables": {"carrot": 50, "beans": 100, "tomato": 70}} # Printing the value using get() method of dictionary by passing key print("Orange Price:", market.get("fruits").get("orange")) print("Grapes Price:", market.get("fruits").get("grapes")) print("Tomato Price:", market.get("vegetables").get("tomato")) OutputOrange Price: 40 Grapes Price: 200 Tomato Price: 70 Access Value Inside Python Nested Dictionaries Using Recursive FunctionIn this example, a recursive function named get_nested_value is used to retrieve the quantity of beans from the nested market dictionary. The function recursively navigates through the dictionary hierarchy, utilizing the get() method to handle missing keys, and prints the quantity of beans as the output. Python3 # Using a recursive function market = {"fruits": {"apple": 10, "orange": 40, "strawberry": 30, "grapes": 200}, "vegetables": {"carrot": 50, "beans": 100, "tomato": 70}} def get_nested_value(dictionary, keys): if not keys: return dictionary return get_nested_value(dictionary.get(keys[0], {}), keys[1:]) # Example usage beans_quantity = get_nested_value(market, ['vegetables', 'beans']) print("Beans Quantity:", beans_quantity) # Output: 100 OutputBeans Quantity: 100
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