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Discover the simple method to convert a `Python` list to a `C# List` using `Python.NET`, with complete code examples and explanations.
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How to Convert a Python List to a C# List using Python.NET

When working with both Python and C# in a hybrid environment, it’s not uncommon to face challenges in data conversion between the two languages. One such challenge arises when you want to import a list from Python into C# . Although many examples exist for converting C# data structures to Python, developers often find that resources are scarce for the reverse process. This guide tackles one such common issue: converting a Python list (of strings) into a C# list using Python.NET.

The Problem

You might be trying to collect a list of strings from a Python script and manipulate that data in your C# application. However, upon attempting to cast the Python.NET dynamic object, you may run into some obstacles. The methods expected to facilitate this conversion, such as explicit casting or using Enumerable.ToList, might return null or result in an error.

A sample scenario looks like this:

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

The Solution

After some experimentation, a simple and effective solution was presented. Thanks to contributions from community members, including a user named Dave, the best practices for this conversion became clear.

Step 1: Direct Casting to String Array

You can cast the dynamic Python object directly to a string array:

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

Step 2: Convert to List (Optional)

If you want to convert the string array into a List<string>, you can do so easily with the ToList method:

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

Complete Example

Here’s a consolidated example demonstrating both methods in action:

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

Conclusion

Converting a Python list to a C# list using Python.NET can be accomplished efficiently with minimal code. Instead of resorting to looping through every item and adding it one by one, you now have a straightforward method for achieving this conversion. Remember, always look for casting possibilities when utilizing dynamic objects, as they can save you time and effort. Happy coding!