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PythonDotNet Digest, Vol 41, Issue 4






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Today's Topics:

   1. RunString does not work (Seshagiri Cherukuri)


----------------------------------------------------------------------

Message: 1
Date: Sun, 4 Mar 2007 01:37:52 -0800
From: "Seshagiri Cherukuri" <seshagiri.cherukuri at gmail.com>
Subject: [Python.NET] RunString does not work
To: pythondotnet at python.org
Message-ID:
 <8d12fba0703040137s728f6848vb061a602472c9490 at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

hi All,

I have embedded pythonnet into my C# application and this works great as 
far
as creating .net objects from python, executing methods etc.
Here I am using the RunSimpleString (the PyRun_SimpleString) wrapper to 
send
commands from the C# application to the pythonnet.

However I am facing the following problems:

1. After RunSimpleString, PyErr_Occurred or PyErr_Fetch are not able to
detect any exceptions even if they did occur
- for example, consider the code - curErr = PythonEngine.RunSimpleString(
"10/0\n");
- this code does return a -1 value indicating error.
- however after this none of PyErr_Occurred or PyErr_Fetch do not detect
this error
- from python documentation it looks like there is no way to obtain the
exception information

2. using RunString
- because of above problem I want to send a multi-line code including a
try-except: block
- I have tried using RunString with all the three modes - Py_eval_input,
Py_single_input and Py_file_input
- The RunString works only if the code does not have any .net objects or
does not include any .net exceptions
- If the code sent to RunString includes a .net object e.g. obj, then
RunString always returns in NameError, obj is not defined

3. Strangely, if I run the console application, it is able to work with 
.net
exceptions - both .net and user defined exceptions

4. Is this because of the new dictionary created while in RunString?

thanks

Sesh Cherukuri
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