How to Create a Nested Dictionary from Two Dictionaries in Python

Learn how to easily combine two dictionaries into a nested dictionary structure in Python with simple steps and examples.
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How to Create a Nested Dictionary from Two Dictionaries in Python

In Python, dictionaries are a versatile and powerful data structure that allows you to store pairs of keys and values. But what if you need to create a nested dictionary from two separate dictionaries? Let’s explore this problem and understand how to achieve the desired structure easily.

The Problem

Let's say you have two existing dictionaries:

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You might want to combine them into a single dictionary where each of the original dictionaries becomes a nested dictionary. The desired output would look like this:

[[See Video to Reveal this Text or Code Snippet]]

This structure allows you to group related data together in a more organized manner. So, how can you do it? Here’s your solution in detail.

The Solution

Simple Nested Dictionary Creation

The simplest way to create the nested dictionary is by mapping the original dictionaries under new keys. You can do this by manually defining the structure you want, as shown here:

[[See Video to Reveal this Text or Code Snippet]]

Using a List of Dictionaries

If you have a list of dictionaries and you want to convert that into a dictionary of dictionaries, you can use a dictionary comprehension. This is particularly useful if your dictionaries are not static and may change or if they come from an iterable source. Here’s how you can do it:

Define your list of dictionaries:

[[See Video to Reveal this Text or Code Snippet]]

Use dictionary comprehension to convert the list into a dictionary where each entry is indexed**:

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Example Output

The result would look like this:

[[See Video to Reveal this Text or Code Snippet]]

This method is highly flexible and can easily accommodate varying numbers of dictionaries without requiring manual adjustments to the code.

Conclusion

Creating a nested dictionary from two or more dictionaries can be quite straightforward in Python. Whether you’re dealing with hard-coded values or a fluid list of dictionaries, Python's syntax allows you to define structures in a clean and readable way. The key takeaway here is to remember that replacing the equal signs with colons is how you can easily form the desired nested dictionary format.

With these techniques at your disposal, you can effectively manage and manipulate your data structures in Python, making your coding experience even smoother. Happy coding!