Exceptions thrown from c# iterators (yield) cannot be caught #475
Description
Environment
- Pythonnet version: 2.3.0
- Python version: 2.7.10
- Operating System: Windows 7
Details
- Describe what you were trying to get done.
Catch an exception thrown from a C# iterator (done with yield return) in a python script.
- What commands did you run to trigger this issue? If you can provide a
Minimal, Complete, and Verifiable example
this will help us understand the issue.
using System;
using System.Collections;
using System.Collections.Generic;
namespace Example
{
public class Script
{
public static IEnumerable<int> Test()
{
for (var i = 0; i < 10; i++)
{
if (i == 5)
throw new Exception("Ooops!");
yield return i;
}
}
}
}compile:
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /t:library bad_yield.csimport clr
clr.AddReference(...)
import System
import Example
try:
for r in Example.Script.Test():
print r
except System.Exception as e:
print e.Message
except Exception as e:
print e.message
except:
print "Unfortunately this one doesn't work either"- If there was a crash, please include the traceback here.
Unhandled Exception: System.Exception: Ooops!
at Example.Script.<Test>d__13.MoveNext() in ...
at Python.Runtime.Iterator.tp_iternext(IntPtr ob)