How Can I Execute Python Scripts from C# Without External Libraries?

Running Python Scripts from C

Many developers have encountered the challenge of executing Python scripts within their C# applications. While solutions such as IronPython exist, this article provides a concise and effective approach to achieving this task without using external libraries.

The key to running a Python script from C# is to understand how command-line execution works. When you execute a command from the command line, you specify the executable (e.g., python.exe) followed by the script file and any necessary arguments.

In C#, you can use the ProcessStartInfo class to specify the command-line to execute. Here's an updated version of your code that correctly sets UseShellExecute to false and builds the Arguments string using string.Format:

private void run_cmd(string cmd, string args)
{
     ProcessStartInfo start = new ProcessStartInfo();
     start.FileName = "my/full/path/to/python.exe";
     start.Arguments = string.Format("{0} {1}", cmd, args);
     start.UseShellExecute = false;
     start.RedirectStandardOutput = true;
     using(Process process = Process.Start(start))
     {
         using(StreamReader reader = process.StandardOutput)
         {
             string result = reader.ReadToEnd();
             Console.Write(result);
         }
     }
}

This code ensures that the full path to python.exe is used and correctly formats the arguments to include both the script filename and the file to be read.

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