Hi all - to clarify on Denis’ totally legit observation on the mailing list:
While I haven’t been able to be particularly active in python.net development for a number of years, I have been the moderator of the mailman list this whole time. We get a pretty huge amount of spam, which is why I’ve kept the list moderated to try to weed that out for folks. While I try to keep up with it every day, sometimes I’m traveling or otherwise offline so sometimes legitimate messages languish for a day or two. If some folks want to volunteer to help with moderation of the list I’m more than happy to open that up to a wider group - let me know if you are interested in lending a hand. On 10/13/16, 6:41 AM, "PythonDotNet on behalf of Denis Akhiyarov" <pythondotnet-bounces+brian.d.lloyd=gmail....@python.org on behalf of denis.akhiya...@gmail.com> wrote: >You may have much faster response on GitHub issues instead of using this >mailing list: >https://github.com/pythonnet/pythonnet/issues/new >Sometimes it takes few days for messages to post on this mailing list!!! >Did you try suggestions for resolving LoaderLock from Stackoverflow? >http://stackoverflow.com/questions/12900192/loaderlock-was-detected-with-visual-studio-2012 >The problem with first code snippet is that you have ".py" at the end of >module name. >Inside WinForms there maybe threading issues, but try above first. >Did you confirm that loading works without WinForms code? >Cheers, >Denis > >On Oct 12, 2016 8:59 PM, "solospirit" <solospi...@sohu.com> wrote: > >sorry, i just send it again, since i do not see it at >https://mail.python.org/pipermail/pythondotnet/, i guess it might be lost, >thanks. > >----- 原始邮件 ----- > >发件人：solospirit<solospi...@sohu.com> >发送时间：2016-10-11 22:18:27 >收件人：A list for users and developers of Python for .NET<pythondotnet@python.org> >主 题：回复:Re: [Python.NET] call python in Visual C# WinForm application >Thanks Denis. > >I tried the following code, it still does not work, the pModule is NULL. > > //string scriptdir = > @"C:\gitcode\neural-networks-and-deep-learning\src"; > private void CallPython2(string scriptdir) > { > PythonEngine.Initialize(); > IntPtr pythonLock = PythonEngine.AcquireLock(); > PythonEngine.RunSimpleString("import sys\n"); > PythonEngine.RunSimpleString("sys.path.append('" + scriptdir + > "')\n"); > PyObject pModule = PythonEngine.ImportModule("network2.py"); > } > >I also tried the following code, there is exception, see below. > //string scriptdir = > @"C:\gitcode\neural-networks-and-deep-learning\src"; > private void CallPython3(string scriptdir) > { > using (Py.GIL()) > { > dynamic sys = Py.Import("sys"); > sys.path.append(scriptdir); > dynamic testmodule = Py.Import("network2"); > > //the following code works > //dynamic np = Py.Import("numpy"); > //dynamic sin = np.sin; > //double c = np.cos(5) + sin(5); > //MessageBox.Show(c.ToString()); > } > } > >Exception information: >LoaderLock was detected >Message: Attempting managed execution inside OS Loader lock. Do not attempt to >run managed code inside a DllMain or image initialization function since doing >so can cause the application to hang. > >Actually, my script is called when a button on winform is clicked, it is not >called as the above exception message says. > > >----- 原始邮件 ----- > >发件人：Denis Akhiyarov<denis.akhiya...@gmail.com> >发送时间：2016-09-27 01:54:22 >收件人：A list for users and developers of Python for .NET<pythondotnet@python.org> >主 题：Re: [Python.NET] call python in Visual C# WinForm application >@solospirit: > > > You are doing illegal things with Python and believe me - it bites back :) > > > Remember that in Python you cannot just import modules (.py) just from > arbitrary paths, unless you are using importlib or sys.path. > > > Hence here is the correct workflow using sys.path: > > > Microsoft (R) Roslyn C# Compiler version 1.2.0.60425 >Loading context from 'CSharpInteractive.rsp'. >Type "#help" for more information. >> #r "C:\Python\Python27_32b\Lib\site-packages\Python.Runtime.dll" >> using Python.Runtime; >> dynamic sys; using (Py.GIL()) { sys= Py.Import("sys"); } >> using (Py.GIL()) { sys.path.append(@"C:\Users\denis.akhiyarov\Downloads") ; >> } >> dynamic testmodule; using (Py.GIL()) { testmodule = Py.Import("network2"); } >> >> testmodule.Network >[<class 'network2.Network'>] > > > > > > Perhaps this should be documented here: > > > https://github.com/pythonnet/pythonnet/wiki/pythonnet-troubleshooting-wiki-on-Windows > > > > > > > Thanks, >Denis > > > > > On Mon, Sep 26, 2016 at 8:40 AM, solospirit < > solospi...@sohu.com> wrote: > > >Hi, > >I'm using windows 7 64bit + Visual C#2012 to develop WinForm 32bit application >with .Net Framework 4.0. I want to call some python script within my winform >application. > >After read the document, i'm now able to call the following code within my >WinForm application, and the result is correct. > > using (Py.GIL()) > { > dynamic np = Py.Import("numpy"); > dynamic sin = np.sin; > double c = np.cos(5) + sin(5); > MessageBox.Show(c.ToString()); > } > >I'm using a python script from >https://github.com/mnielsen/neural-networks-and-deep-learning/blob/master/src/network2.py > ><https://github.com/mnielsen/neural-networks-and-deep-learning/blob/master/src/network2.py,> > by git clone to my local machine c:\mypath\neural-networks-and-deep-learning, >it works inside python in my system. > >I tried the following code, but the np returns NULL. > > using (Py.GIL()) > { > dynamic np = > Py.Import(@"c:\mypath\neural-networks-and-deep-learning\src\network2"); > } > >I also tried the following code, but pModule also returns NULL > string workingdir = > @"c:\mypath\neural-networks-and-deep-learning\src"; > PythonEngine.Initialize(); > IntPtr pythonLock = PythonEngine.AcquireLock(); > PythonEngine.RunSimpleString("import sys\n"); > PythonEngine.RunSimpleString("sys.path.append('" + workingdir + > "')\n"); > PyObject pModule = PythonEngine.ImportModule(workingdir + > "\\network2.py"); > >How could I invoke such python script, thanks a lot! > > > > > > > ________________________________________ > > <http://score.mail.sohu.com/?ref=mail_tailad> > > > > > > > >_________________________________________________ > >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 > > > > >_________________________________________________ >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
