3

我正在使用Jython 2.5.3 PythonInterpreter类来评估一些简单的脚本,但是当我需要导入任何非核心模块时,我会遇到异常。我是否必须在 CLASSPATH 中添加一些 jython 库 jar?

演示问题的缩小代码:

import org.python.core.*;
import org.python.util.PythonInterpreter;

public class JythonTest {

    public static void main(String args[]) throws Exception {
        String scriptA = "import json"; // "import datetime" fails as well
        PythonInterpreter pi = new PythonInterpreter();
        PyCode code = pi.compile(scriptA);
        PyObject result = pi.eval(code);
    }
}

在 CLASSPATH 中仅使用jython-2.5.3.jar运行上述失败并显示以下跟踪:

 [java] ImportError: No module named json
 [java] 
 [java]     at org.python.core.Py.ImportError(Py.java:304)
 [java]     at org.python.core.imp.import_first(imp.java:755)
 [java]     at org.python.core.imp.import_module_level(imp.java:837)
 [java]     at org.python.core.imp.importName(imp.java:917)
 [java]     at org.python.core.ImportFunction.__call__(__builtin__.java:1220)
 [java]     at org.python.core.PyObject.__call__(PyObject.java:357)
 [java]     at org.python.core.__builtin__.__import__(__builtin__.java:1173)
 [java]     at org.python.core.imp.importOne(imp.java:936)
 [java]     at org.python.pycode._pyx0.f$0(<script>:2)
 [java]     at org.python.pycode._pyx0.call_function(<script>)
 [java]     at org.python.core.PyTableCode.call(PyTableCode.java:165)
 [java]     at org.python.core.PyCode.call(PyCode.java:18)
 [java]     at org.python.core.Py.runCode(Py.java:1275)
 [java]     at org.python.core.__builtin__.eval(__builtin__.java:484)
 [java]     at org.python.core.__builtin__.eval(__builtin__.java:488)
 [java]     at org.python.util.PythonInterpreter.eval(PythonInterpreter.java:198)
 [java]     at JythonTest.main(JythonTest.java:10)
4

1 回答 1

4

您似乎正在使用不包含捆绑 Python 文件(/Lib文件夹中的标准库)的 Jython jar 文件。我相信如果您使用独立的 jar 代替它应该可以工作。看

于 2013-06-12T09:11:59.377 回答