How Can I Recursively Access and Print Values from a Nested Dictionary?

Accessing Nested Dictionary Values Recursively

When working with nested dictionaries, it is often necessary to iterate through all of the key-value pairs to extract specific data. This problem arises when attempting to loop through a dictionary and retrieve all non-nested dictionary values while recursively accessing nested dictionary values.

The first attempt using iteration only works for the first two levels due to the limited scope of the inner loop. The second attempt also fails to fully traverse the dictionary due to its static implementation.

To overcome this limitation, recursion is required. By defining a function to print the dictionary values, you can recursively call the function on any nested dictionaries to access their values.

Here's an example of a recursive solution:

def myprint(d):
    for k, v in d.items():
        if isinstance(v, dict):
            myprint(v)  # Recurs if value is a dictionary
        else:
            print("{0} : {1}".format(k, v))

This solution starts by iterating through the key-value pairs of the input dictionary. For each key-value pair, it checks if the value is a dictionary. If it is, it recursively calls the myprint function with the nested dictionary as the parameter. If the value is not a dictionary, it simply prints the key-value pair.

By utilizing recursion, this solution can traverse any number of nested dictionary levels to access and print all non-nested dictionary values.

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