Mailman 3 May 2012 - Python.NET

Multithreading/multiprocessing
by Alan Macdonald May 5, 2025

May 5, 2025

Hello, has anyone successfully used multithreading or multiprocessing with Python.Net? I tried to multi-thread from the .Net side and the Python.Net libraries seem to have issues in the RunScript method. I had to take an implementation off the web of that method because the shipped method doesn’t seem to work. I then had a working multi-processing example from CPython that I tried from Python.Net but it gives an error 'module' object has no attribute 'argv' When trying to create a process pool by executing the line pool = Pool(processes=4) Is it possible to do multithreading or multiprocessing with Python.Net? Thanks, Alan

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Setting PYTHONPATH from code
by Sharon Rozenblum April 5, 2013

April 5, 2013

Hi! Can someone tell me how to set PYTHONPATH variable in code when working with Python.Runtime.dll without changing the value in the system variables before. Thanks SHARON ________________________________ PLEASE NOTE: The information contained in this electronic mail message is intended only for the use of the designated recipient(s) named above. If the reader of this message is not the intended recipient, you are hereby notified that you have received this message in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify the sender by telephone or e-mail (as shown above) immediately and destroy any and all copies of this message in your possession (whether hard copies or electronically stored copies).

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DataGridView Issue
by Manfred Schulte-Oversohl June 29, 2012

June 29, 2012

With Ironpython 2.7 the following code works. Not so with python for .Net where only a blank Form is displayed. Used python for .Net is compiled from trunk of May 26, 2012 python 2.6 and clr4. Any help is appreciated. Cheers Manfred #------------------------- import clr clr.AddReference('System.Windows.Forms') clr.AddReference('System.Drawing') import System.Windows.Forms as WinForms import System from System.Drawing import Size, Point SAMPLE_DATA = [ ('Joe', 23), ('Bob', 8), ('Thomas', 32), ('Patrick', 41), ('Kathy', 19), ('Sue', 77), ] class Person(System.Object): def __init__(self, name, age): self.Name = name self.Age = age people = [] for name, age in SAMPLE_DATA: people.append(Person(name, age)) f=WinForms.Form() f.Text = u"DataGridView From Python" h = WinForms.SystemInformation.CaptionHeight fdgv=WinForms.DataGridView() fdgv.AutoSize = True fdgv.Dock = WinForms.DockStyle.Fill fdgv.DataSource = people fdgv.Refresh() f.Controls.Add(fdgv) WinForms.Application.Run(f)

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Passing by reference
by Kenny Koller May 19, 2012

May 19, 2012

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IronPython Embeddied .NET 4.0, how to transfer object from C# into Ironpython and back again
by riscy00 May 17, 2012

May 17, 2012

I'm learning more about data/object transfer between C# and ironpython (under embedded within NET4) I have class object instance containing Dictionary<T> implementation with data such as "XDATA:67, YDATA:12,ZDATA:66" I also have test.py filename which is loaded into C#'s IRONPYTHON (using var and dynamic method). I was curious how to transfer data within the class object into Python (reference class or a copy?) which do various processing (ie ZDATA=YDATA+XDATA) and then return result within the same class (rather than value) Is this possible, if so please demonstrate code example in C# and python. How to make sure both Dictionary within C# is the same as python? The whole aim is to pass object instance into python and do operation task using object data and then pass data back into class and make it available to return object back to the C# for further processing. I wondered if this can this be done by mean of reference (rather than copy?, faster and more compact this way perhaps). -- View this message in context: http://python.6.n6.nabble.com/IronPython-Embeddied-NET-4-0-how-to-transfer-… Sent from the Python - pythondotnet mailing list archive at Nabble.com.

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Is Python .NET Alive?
by Kenny Koller May 16, 2012

May 16, 2012

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