How to Convert a String to List in Python: Simple Steps You Should Know

Learn how to easily change a string representation of a list into an actual list data type in Python. Follow our step-by-step guide for a clear understanding!
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How to Convert a String to List in Python

In the world of programming, data types are critical. Sometimes, we find ourselves needing to convert one data type to another, for example, changing a string into a list in Python. This process can seem daunting, particularly if you're unfamiliar with libraries or methods available in Python. However, we have a simple solution to your problem.

The Problem

You might have encountered a situation where you have a string formatted as a list but need it to function as an actual list in order to utilize list-specific functionalities in Python.

Example:

You may have a string like this:

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When checking its data type, you find that it's currently treated as a string:

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But your desired output is to convert this string into an actual list, like this:

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And have it recognized as a list:

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The Solution

The good news is that the string you have is a valid JSON array. This means that you can easily parse it into an actual list using Python's built-in json library. Let’s break down the steps to achieve this.

Step 1: Import the JSON Library

First, you need to import the json library, which is included in Python’s standard libraries.

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Step 2: Define Your String

Next, you will set your string variable to the string that looks like a JSON array.

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Step 3: Load the JSON

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Step 4: Verify Your Output

It’s important to check that your variable l has indeed been converted into a list. You can do this by printing it and its type.

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Conclusion

That's all there is to it! By following these straightforward steps, you can successfully change a string that resembles a list into an actual list data type in Python. This method not only works for this particular case but can also be applied broadly whenever you are dealing with valid JSON strings in Python.

If you find yourself working with strings that need conversion to lists often, make sure to keep this method in mind, as it can save you a lot of time and effort in your programming tasks.

Happy coding!