Mailman 3 August 2013 - 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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importing eggs. does pythonnet not use respect the easy-install.pth file?
by John Burkhart Aug. 23, 2013

Aug. 23, 2013

Hello, I have a pythonnet installation that works fine for the most part. However, whenever I try to import a module that was built with easy_install, I have to explicitly add the full egg path to the sys.path variable. Does pythonnet not respect the easy-install.pth file? [code] >>> import south Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: No module named south >>> import sys >>> sys.path.append(r'C:\Python27\lib\site-packages\south-0.8.2-py2.7.egg') >>> import south >>> >>> import openpyxl Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: No module named openpyxl >>> sys.path.append(r'C:\Python27\lib\site-packages\openpyxl-1.6.1-py2.7.egg') >>> import openpyxl >>> [/code] My easy-install.pth file contains: [code] import sys; sys.__plen = len(sys.path) ./python_distutils_extra-2.37-py2.7.egg ./openpyxl-1.6.1-py2.7.egg ./south-0.8.2-py2.7.egg import sys; new=sys.path[sys.__plen:]; del sys.path[sys.__plen:]; p=getattr(sys,'__egginsert',0); sys.path[p:p]=new; sys.__egginsert = p+len(new) [/code]

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ImportError: dynamic module does not define init function (PyInit_CLR)
by Catherine Holloway Aug. 21, 2013

Aug. 21, 2013

When I try to do: import CLR I get the following error: ImportError: dynamic module does not define init function (PyInit_CLR) any ideas? I downloaded what I thought was the windows installer from sourceforge, but running nPython.exe just crashes (it gives something about not being able to find python27). I have python33. Does that mean that python for .net is not compatible with python 3.3.? -- /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ Catherine Holloway Institute for Quantum Computing Lab Phone: 519-888-4567 ext. 32107 Office Phone: 519-888-4567 ext. 39038 Cell Phone: 519-998-1264

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