[Python.NET] PyTables working with python not working with python.net

[Barton]

Being a novice embedder (especially back when I wrote the pyimport.cs 
module in the Python.EmbeddingTest project), I chose to do things a 
little differently:
At the time, I felt like I wanted access to the entire engine.
I still can't decide if calling methods on PyObject is more clumsy than 
the object[] arg passing arrangement with strongly typed object or not.

   [SetUp]
   public void SetUp() {
     PythonEngine.Initialize();
     gs = PythonEngine.AcquireLock();

     //string here = Environment.CurrentDirectory;
     // trunk\pythonnet\src\embed_tests\bin\Debug

     /*
      * Append the tests directory to sys.path
      * using reflection to circumvent the private modifiers placed on 
most Runtime methods.
      */
     string s = @"..\..\..\tests";

     Type RTClass = typeof(Runtime.Runtime);

     /* pyStrPtr = PyString_FromString(s); */
     MethodInfo PyString_FromString = 
RTClass.GetMethod("PyString_FromString", BindingFlags.NonPublic | 
BindingFlags.Static);
     object[] funcArgs = new object[1];
     funcArgs[0] = s;
     IntPtr pyStrPtr = (IntPtr)PyString_FromString.Invoke(null, funcArgs);

     /* SysDotPath = sys.path */
     MethodInfo PySys_GetObject = RTClass.GetMethod("PySys_GetObject", 
BindingFlags.NonPublic | BindingFlags.Static);
     funcArgs[0] = "path";
     IntPtr SysDotPath = (IntPtr)PySys_GetObject.Invoke(null, funcArgs);

     /* SysDotPath.append(*pyStrPtr) */
     MethodInfo PyList_Append = RTClass.GetMethod("PyList_Append", 
BindingFlags.NonPublic | BindingFlags.Static);
     funcArgs = new object[2];
     funcArgs[0] = SysDotPath;
     funcArgs[1] = pyStrPtr;
     int r = (int)PyList_Append.Invoke(null, funcArgs);
  }
     [TearDown]
     public void TearDown()
     {
         PythonEngine.ReleaseLock(gs);
         PythonEngine.Shutdown();
     }
    [Test]
    public void TestDottedName() {
        PyObject module;
        module = PythonEngine.ImportModule("PyImportTest.test.one");
        Assert.IsNotNull(module, ">>>  import PyImportTest.test.one  # 
FAILED");
    }

Personally, I don't see the benefit of marking most of the Runtime as 
private.

On 03/25/2011 01:14 PM, Guillaume Pichard wrote:
> Hello,
>
> I am trying to use pytables with python.net <http://python.net>. It is
> working great with python alone. What I am doing with python.net
> <http://python.net> is:
>              PythonEngine.Initialize();
>              PythonEngine.AcquireLock();
>
>              PyObject sys = PythonEngine.ImportModule("sys");
>              PyObject path = sys.GetAttr("path");
>              PyObject append = path.GetAttr("append");
>              PyObject[] a = new PyObject[1];
>              a[0] = new PyString("C:\\Python27\\Lib\\site-packages");
>              append.Invoke(a);
>
>              PyObject pyTables = PythonEngine.ImportModule("tables");
>              if (pyTables == null)
>                  throw new PythonException();
>
> The exception message is "ImportError : DLL load failed: Specified
> module not found."
>
> What could be the differences between python.net <http://python.net> and
> python ? Is there any specific path to add ?
>
> Thanks a lot,
> Guillaume.
>
>
>
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