Python Scripting

Introduction

The Python scripting area in Kephas handles Python dynamic code execution using IronPython.

Check the following packages for more information:

• Kephas.Scripting
• Kephas.Injection
• Kephas.Configuration

Usage

• String based script execution

// normally you would get the processor injected into the service constructor. var processor = injector.Resolve<IScriptProcessor>(); var result = await processor.ExecuteAsync(new PythonStringScript("name[..4] + str(age)"), new Expando { ["name"] = "Johnny", ["age"] = 42 })).PreserveThreadContext(); Assert.Equals("John42", result);

• File based script execution

The file scripts assume that the language can be inferred from the file extension. For Python, it means that the file needs to and with a *.py extension. If this is not the case, make sure you specify the language explicitly when creating a FileScript.

// normally you would get the processor injected into the service constructor. var processor = injector.Resolve<IScriptProcessor>(); // Python scripts ending with *.py var result = await processor.ExecuteAsync(new FileScript("myscript.py"), new { name = "Johnny", age = 42 })).PreserveThreadContext(); Assert.Equals("John42", result); // Python scripts not ending with *.py var result = await processor.ExecuteAsync(new FileScript("myscript.txt", PythonLanguageService.Language), new { name = "Johnny", age = 42 })).PreserveThreadContext(); Assert.Equals("John42", result);

The PythonLanguageService

This service is the ILanguageService implementation for the Python language. It uses the PythonSettings to configure the way it controls the execution. These are the options:

• (string[]): enumerates the paths where the Python modules should be searched.