[Ironpython-users] Options for debugger for DLR languages on Mono

[Doug Blank]

On Mon, Sep 26, 2011 at 10:35 PM, Dino Viehland <dinov at microsoft.com> wrote:
> Is the hosted IronPython running in the same ScriptEngine or a different one?

Different.

> If it's a different one you'll need to do the settrace on the other ScriptEngine but
> you should be able to do that from Python code as well.

Yes, and I was hoping that is what this would do:

IronPython.Hosting.Python.GetSysModule(engine).settrace(trace)

Here, "engine" is the engine for the hosted Python language (the
Python host engine is actually in a bit of C#).

> If it's the same then I would expect that you'd see the traces for both the hosting
> and hosted code (I'd also consider separating it into 2 different engines so that
> you should only see the traces for the hosted code, or you could look at the args
> and see if it's the hosting code and ignore it).  But if they're the same and you're
> not getting the trace events for the hosted code then that could be a bug.

Ok, sounds like a bug, if the above settrace command is supposed to be
equivalent to the PythonEngine.GetSysModules().settrace.

I'll try to come up with a small example for a bug report. Thanks!

-Doug

>> -----Original Message-----
>> From: ironpython-users-
>> bounces+dinov=exchange.microsoft.com at python.org [mailto:ironpython-
>> users-bounces+dinov=exchange.microsoft.com at python.org] On Behalf Of
>> Doug Blank
>> Sent: Monday, September 26, 2011 10:25 AM
>> To: Dino Viehland
>> Cc: ironpython-users at python.org
>> Subject: Re: [Ironpython-users] Options for debugger for DLR languages on
>> Mono
>>
>> On Mon, Sep 26, 2011 at 12:54 PM, Dino Viehland <dinov at microsoft.com>
>> wrote:
>> > Do you have a using statement for IronPython.Hosting?  If you add that
>> > you should get the extension method showing up on ScriptEngine.
>>
>> I'm using IronPython as the hosting language... does that mean I just can't
>> get the extensions?
>>
>> But in any event, is this workaround:
>>
>> IronPython.Hosting.Python.GetSysModule(engine).settrace(trace)
>>
>> equivalent?
>>
>> > As for tracing the hosting level - can you describe what you mean?  Do
>> > you have additional hosting code written in Python?
>>
>> Yes, all of the hosting code is written in IronPython. When I use the
>> workaround above, I get tracing but at my IronPython hosting app level, not
>> at the level of my script being run. The only way I can get tracing in my
>> Python script being executed, is by having the set_trace inside that file.
>>
>> I'm trying to find a way that I can from outside that script (eg, from the
>> IronPython hosting app) get tracing on. I can probably write some of this in
>> C# if I need to, but all of the hosting app is written in IronPython at the
>> moment.
>>
>> -Doug
>>
>> > -----Original Message-----
>> > From: Doug Blank [mailto:doug.blank at gmail.com]
>> > Sent: Saturday, September 24, 2011 5:47 PM
>> > To: Dino Viehland; ironpython-users at python.org
>> > Subject: Re: [Ironpython-users] Options for debugger for DLR languages
>> > on Mono
>> >
>> > On Sat, Sep 24, 2011 at 5:09 PM, Dino Viehland <dinov at microsoft.com>
>> wrote:
>> >> You  should be able to do engine.GetSysModule().settrace(func) and
>> >> then do the Execute call (this is using C# dynamic to invoke settrace).
>> >>
>> >> GetSysModule is an extension method in IronPython.Hosting.
>> >
>> > I didn't see GetSysModule for some reason in IronPython 2.7....
>> > perhaps a Mono issue, or maybe I'm not importing it correctly?
>> >
>> > But I was able to:
>> >
>> > IronPython.Hosting.Python.GetSysModule(engine).settrace(trace)
>> > source = engine.CreateScriptSourceFromFile(filename)
>> > source.Compile()
>> > source.Execute(scope)
>> >
>> > However, it ended up tracing the hosting level, rather than the source. Is
>> that an IronPython issue? Or user error? Is there another way to inject a
>> trace in an execution?
>> >
>> > -Doug
>> >
>> >>> -----Original Message-----
>> >>> From: ironpython-users-
>> >>> bounces+dinov=exchange.microsoft.com at python.org
>> [mailto:ironpython-
>> >>> users-bounces+dinov=exchange.microsoft.com at python.org] On Behalf
>> Of
>> >>> Doug Blank
>> >>> Sent: Saturday, September 24, 2011 10:48 AM
>> >>> To: Dino Viehland
>> >>> Cc: ironpython-users at python.org
>> >>> Subject: Re: [Ironpython-users] Options for debugger for DLR
>> >>> languages on Mono
>> >>>
>> >>> Use of sys.settrace (especially with the bdb.py) makes the Python
>> >>> debugger really easy. However, I'm having one little issue: I want
>> >>> to set the trace from outside the running code. Currently, I'm running a
>> Python file like this:
>> >>>
>> >>> source = engine.CreateScriptSourceFromFile(filename)
>> >>> source.Compile()
>> >>> source.Execute(manager.scope)
>> >>>
>> >>> I have a bdb-based debugger that works it I put it the the file, but
>> >>> I can't figure out how to inject it into the Execution. For example, if I
>> have in the file:
>> >>>
>> >>> d.set_trace()
>> >>> x = 1
>> >>>
>> >>> I can trace that. But if I take out the "d.set_trace()" and execute
>> >>> it any other way in the same scope, it doesn't work.
>> >>>
>> >>> How can I get code to run as it it were in the file? Any ideas appreciated!
>> >>>
>> >>> -Doug
>> >>> _______________________________________________
>> >>> Ironpython-users mailing list
>> >>> Ironpython-users at python.org
>> >>> http://mail.python.org/mailman/listinfo/ironpython-users
>> >>
>> >>
>> >
>> >
>> >
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