[CentralOH] Job opportunity at Cincinnati Children's Hospital

[Bryan Harris]

Hey all,

I had a head hunter contact me looking for a programmer for a job with
Cincinnati Children's.  Is it appropriate to post job openings to this list?

Bryan
On Feb 23, 2015 2:46 PM, "Thomas Winningham" <winningham at gmail.com> wrote:

> So I re-read your email, and my reply, and noticed I missed a subtlety,
> you're trying to get a Python.NET callback to work with a .NET function.
> This may not work unless the Python.NET allows you to override or somehow
> annotate a function's accepted types. The "method signature" in Java
> parlance means that whatever you write in Python is not going to appear
> like a valid callback method, as the parameters may be of a different type
> than what the callback allows. There *ought* to be a way to make a Python
> function that appears to the .NET CLR as having this method signature, but
> I'm not sure.
>
> I guess the same advice applies, but if what I described above doesn't
> exist, you may be in the C# world more if you can't find a way to
> explicitly define the Python function's parameter types. Essentially, write
> C# that can call your Python function, but that C# has to require
> parameters with the types aligned with the original callback.
>
> On Sun, Feb 22, 2015 at 7:56 PM, Thomas Winningham <winningham at gmail.com>
> wrote:
>
>> I had been thinking about this, and while I haven't messed with Python on
>> .NET, I have messed with C# some, as well as other Python on top of another
>> language type arrangements.
>>
>> There must be either one of two things you can do, but the details of
>> which you may be on your own to investigate (sorry):
>>
>> 1. The Python.NET, being dynamically typed, must have some sort of
>> functions to support the static (and more specific) types of the .NET
>> system. This may be something that allows you to specifically create a C#
>> compatible array of unsigned shorts like that second parameter of the
>> function requires. I would imagine a study of the documentation for
>> Python.NET may well reveal some kind of capability like this as a language
>> support library or something similar. I know with say, Jython, it is called
>> Java Interop, same with Clojure on the JVM.
>>
>> 2. You could approach this the other way, and write some C# to wrap this
>> function in a function that does work with Python the way you want or
>> however you can get it to work, then in this new C# function, coerce the
>> types passed in to be an array of unsigned shorts, and pass that to the
>> original function.
>>
>> Best of luck, and let us know if you find anything interesting.
>>
>> Thomas
>>
>>
>> On Sat, Feb 21, 2015 at 10:10 PM, Mark Erbaugh <mark at microenh.com> wrote:
>>
>>> Greetings,
>>>
>>> I am struggling with a hobby project using PythonDotNet.  I have an API
>>> for an external device written in C# and .NET.  I have the C# code. Rather
>>> than using IronPython, I am trying to use PythonDotNet with CPython 2.7.9.
>>> The C# code was not written with any special consideration of Python.
>>>
>>> The API implements callback functions. I have been able to write several
>>> of the callback functions in Python and they work. But, now I've come
>>> across something that I can't figure out, and perhaps it's not supported by
>>> PythonDotNet. There is a callback routine that passes a C# array of
>>> shorts.  the C# function signature is
>>>
>>>         public delegate void DataReadyEventHandler(Panadapter pan,
>>> ushort[] data);
>>>
>>> No matter how I try to code my Python function, I am getting a runtime
>>> exception from the PythonRuntime part of PythonDotNet.
>>>
>>> Is passing this array possible?
>>>
>>> Thanks,
>>> Mark
>>> _______________________________________________
>>> CentralOH mailing list
>>> CentralOH at python.org
>>> https://mail.python.org/mailman/listinfo/centraloh
>>>
>>
>>
>
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