C# 导入模块中的 Ironpython 导入 csv 模块时出错

我正在尝试从 C# 应用程序中执行 Python 脚本，但是当它尝试启动脚本时，我收到错误ImportException was unhandled No module name csv。 我检查了Ironpython文件夹，有一个 csv.py 文件...？

我用来调用脚本的代码：

 IDictionary<string, object> options = new Dictionary<string, object>();
 options["Argument"] = new[] { filePath, profile };
 var pyEngine = Python.CreateEngine(options);
 var pyScope = pyEngine.CreateScope();
 string script = "xccdf-xml2tsv.py";
 pyScope.SetVariable(profile, options);
 pyEngine.ExecuteFile(script, pyScope);

蟒蛇文件：

#!/usr/bin/env python
###
# (C) 2010 Adam Crosby
# Licensed under:
#  http://creativecommons.org/licenses/by-nc-sa/3.0/
##
import csv
import sys
reload(sys)
sys.setdefaultencoding('utf-8')
import xml.etree.ElementTree as ET
xmlns = "http://checklists.nist.gov/xccdf/1.1"
...

var paths = pyEngine.GetSearchPaths();
paths.Add(@"C:'Program Files (x86)'IronPython 2.7'Lib");
pyEngine.SetSearchPaths(paths);