This problem could be caused by two different incompatible CPython interpreters being installed. Possibly it's a .pyc file generated from another version of Python is being imported (and failing to import).
Can you check what python27.dll is being used? You should be able to see it in visual studio in the modules window, or with a tool like sysinternals process explorer. If that dll is one left over from an old install of Python try either removing it, or setting your PATH so the correct one is picked up. One other thing you might want to try is a fresh install of Python (making sure that no old python27.dll files are being used) as your pyc caches might be in a weird state if the problem is caused by conflicting Python installs. A quick check to see if it is something like that would be to delete copy_reg.pyc and see if it gets any further. Best regards, Tony On Fri, Apr 22, 2016 at 3:19 PM Denis Akhiyarov <denis.akhiya...@gmail.com> wrote: > Are you able to run PythonEngine.Initialize() from c#, not ironpython? > > > On Thursday, April 21, 2016, Cameron Hayne <cameron.ha...@introspect.ca> > wrote: > >> I tried calling Py_SetPythonHome("C:\\Python27") before calling >> PythonEngine.Initialize(), but I got the same problem (re ‘copy_reg’ not >> found). >> Any other suggestions? >> -- >> Cameron Hayne >> cameron.ha...@introspect.ca >> >> >> On Apr 19, 2016, at 4:37 PM, Tony Roberts <t...@pyxll.com> wrote: >> >> > No need to import the c Python extension - from IronPython you would be >> able to reference the Python.runtime assembly without it. The problem >> you're having sounds like the python path isn't correct for cPython. You >> could try setting the PYTHONHOME environment variable and see if that gets >> you any further. >> > >> > Best regards, >> > Tony >> > On Tue, Apr 19, 2016 at 9:30 PM Denis Akhiyarov < >> denis.akhiya...@gmail.com> wrote: >> > Did you try this code? >> > >> > http://www.voidspace.org.uk/ironpython/cpython_extensions.shtml >> > >> > On Tue, Apr 19, 2016 at 2:09 PM, Cameron Hayne < >> cameron.ha...@introspect.ca> wrote: >> > Should it be possible to call Python (CPython) code from IronPython (an >> IronPython script) via the Python.Runtime DLL ? >> > I.e. an IronPython script that imports the Python.Runtime DLL and then >> calls the functions provided by that DLL. >> > In my preliminary tests, I get an error about ‘copy_reg’ not being >> found. This error seems to happen when calling PythonEngine.Initialize(). >> >> >> >> >> >> _________________________________________________ >> Python.NET mailing list - PythonDotNet@python.org >> https://mail.python.org/mailman/listinfo/pythondotnet >> > _________________________________________________ > Python.NET mailing list - PythonDotNet@python.org > https://mail.python.org/mailman/listinfo/pythondotnet
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