托管的IronPython:导入包含自定义函数的文件 [英] Hosted IronPython: import files which contain custom functions

问题描述

情况

托管的IronPython允许开发人员将参数设置为脚本.每次创建IPy引擎对象时，我都会设置一个这样的参数(ParamName)，但是当我尝试导入使用我的自定义参数的python模块时，却收到异常消息，消息全局名称'ParamName'不是定义".

Hosted IronPython allows developers to set parameters into script. Every time when a IPy engine object is created, I set such a parameter (ParamName), but when I try to import python module, in which my custom parameter is used, I get an exception with message "global name 'ParamName' is not defined".

代码示例

class PythonScriptingEngine
{
    private ScriptEngine pyEngine;
    private ScriptScope pyScope;

    public PythonScriptingEngine()
    {
        pyEngine = Python.CreateEngine();
        pyScope = pyEngine.CreateScope();
    }

    public object Run(string script)
    {
        ScriptSource source = pyEngine.CreateScriptSourceFromString(script);
        CompiledCode compiled = source.Compile();
        return compiled.Execute(pyScope);
    }

    public void SetParameter(string name, int value)
    {
        pyScope.SetVariable(name, value);
    }
}

// execution
var engine = new PythonScriptingEngine();
engine.SetParameter("ParamName", 10);
engine.Run(@"import SampleScriptWithParamName");

问题

有没有解决此情况的方法?如何导入使用自定义参数的python脚本?

Is there any workaround to this situation? How can I import python script in which custom parameter is used?

推荐答案

正如Simon所指出的，问题在于ParamName不在SampleScriptWithParamName的范围内.一种实现方法是将其添加到内置变量集中，如下所示:

As Simon pointed out, the issue is that ParamName is not in scope for SampleScriptWithParamName. One way to achieve that is to add it to the set of builtin variables like so:

public void SetParameter(string name, int value)
{
    pyEngine.GetBuiltinModule().SetVariable(name, value);
}

这应该使它在任何地方都可以使用，但是我现在无法对其进行测试.

This should make it available everywhere, but I don't have the ability to test it right now.

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