From denis.akhiyarov at gmail.com  Fri Nov 30 09:41:21 2018
From: denis.akhiyarov at gmail.com (Denis Akhiyarov)
Date: Fri, 30 Nov 2018 08:41:21 -0600
Subject: [Python.NET] PythonNet support for Python 3.7
In-Reply-To: <CALxxJLROx7YUji39bG3LCddQ0e5eEyPA=w3nhSNFR4F5avfXzg@mail.gmail.com>
References: <CAGudAb5W5HvfE0faOuh6Vn3QS8H7vT+Rn8g1PW+3G3K-f9oxXA@mail.gmail.com>
 <CALxxJLROx7YUji39bG3LCddQ0e5eEyPA=w3nhSNFR4F5avfXzg@mail.gmail.com>
Message-ID: <CALxxJLQR5Xa0CZ3hbHWRSBS6Fg8OzYQQu1pPs29txeX9v4s96Q@mail.gmail.com>

pythonnet support for Python 3.7 is in the master branch.

On Fri, Oct 12, 2018 at 12:22 AM Denis Akhiyarov <denis.akhiyarov at gmail.com>
wrote:

> Would you like to contribute Python 3.7 support?
>
> On Fri, Oct 12, 2018, 12:17 AM Surya Kant Pradhan <
> surya.pradhan123 at gmail.com> wrote:
>
>> Hi Dev Community,
>>
>> I was following the list of issues under:
>> https://github.com/pythonnet/pythonnet/issues/609, but not getting an
>> idea on when possibly is the release timeline for officially supporting
>> Python 3.7.
>>
>> If you can share some rough estimates on a possible release date, it
>> would really help us decide our own migration plans.
>>
>> Thanks,
>> Surya.
>> _________________________________________________
>> Python.NET mailing list - PythonDotNet at python.org
>> https://mail.python.org/mailman/listinfo/pythondotnet
>>
>
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From denis.akhiyarov at gmail.com  Fri Nov 30 09:42:41 2018
From: denis.akhiyarov at gmail.com (Denis Akhiyarov)
Date: Fri, 30 Nov 2018 08:42:41 -0600
Subject: [Python.NET] Pip Install Pythonnet error
In-Reply-To: <DM6PR12MB26517B44C084D30D542974C9BDE00@DM6PR12MB2651.namprd12.prod.outlook.com>
References: <DM6PR12MB26517B44C084D30D542974C9BDE00@DM6PR12MB2651.namprd12.prod.outlook.com>
Message-ID: <CALxxJLQwR3qo5W1epwB93j9FA0dhGBZcxyV7sJfyDL605nMxCQ@mail.gmail.com>

The error you got was due to python 3.7 for which support is in the master
branch now.

On Fri, Oct 12, 2018 at 12:17 AM Phat Loc <ploc at fortress.com> wrote:

> Forget the last previous error. I running anaconda and there is a
> different setup process. Thanks!
>
>
>
> *From:* Phat Loc
> *Sent:* Wednesday, October 10, 2018 9:29 AM
> *To:* 'pythondotnet at python.org' <pythondotnet at python.org>
> *Subject:* Pip Install Pythonnet error
>
>
>
> Hi All,
>
>
>
> I am trying do a pip install  of pythonnet. I get the following build
> errors. Any suggestions on how to fix it?
>
>
>
>
>
> (base) C:\Users\ploc>pip install pythonnet
>
> Collecting pythonnet
>
>   Using cached
> https://files.pythonhosted.org/packages/89/3b/a22cd45b591d6cf490e
>
> e8b24d52b9db1f30b4b478b64a9b231c53474731e/pythonnet-2.3.0.tar.gz
>
> Building wheels for collected packages: pythonnet
>
>   Running setup.py bdist_wheel for pythonnet ... error
>
>   Complete output from command
> c:\users\ploc\appdata\local\continuum\anaconda3\p
>
> ython.exe -u -c "import setuptools,
> tokenize;__file__='C:\\Users\\ploc\\AppData\
>
> \Local\\Temp\\pip-install-r86ym617\\pythonnet\\setup.py';f=getattr(tokenize,
> 'op
>
> en', open)(__file__);code=f.read().replace('\r\n',
> '\n');f.close();exec(compile(
>
> code, __file__, 'exec'))" bdist_wheel -d
> C:\Users\ploc\AppData\Local\Temp\pip-wh
>
> eel-9cgf0yo2 --python-tag cp37:
>
>   running bdist_wheel
>
>   running build
>
>   running build_ext
>
>   Checking for updates from https://www.nuget.org/api/v2/.
>
>   Currently running NuGet.exe 3.5.0.
>
>   Updating NuGet.exe to 4.7.1.
>
>   Update successful.
>
>   MSBuild auto-detection: using msbuild version '15.6.82.30579' from
> 'C:\Program
>
> Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\15.0\bin'.
>
>   Restoring NuGet package NUnit.3.6.0.
>
>   Restoring NuGet package UnmanagedExports.1.2.7.
>
>   Restoring NuGet package NUnit.ConsoleRunner.3.6.0.
>
>   Adding package 'NUnit.ConsoleRunner.3.6.0' to folder
> 'C:\Users\ploc\AppData\Lo
>
> cal\Temp\pip-install-r86ym617\pythonnet\packages'
>
>   Adding package 'NUnit.3.6.0' to folder
> 'C:\Users\ploc\AppData\Local\Temp\pip-i
>
> nstall-r86ym617\pythonnet\packages'
>
>   Adding package 'UnmanagedExports.1.2.7' to folder
> 'C:\Users\ploc\AppData\Local
>
> \Temp\pip-install-r86ym617\pythonnet\packages'
>
>   Added package 'UnmanagedExports.1.2.7' to folder
> 'C:\Users\ploc\AppData\Local\
>
> Temp\pip-install-r86ym617\pythonnet\packages'
>
>   Added package 'NUnit.ConsoleRunner.3.6.0' to folder
> 'C:\Users\ploc\AppData\Loc
>
> al\Temp\pip-install-r86ym617\pythonnet\packages'
>
>   Added package 'NUnit.3.6.0' to folder
> 'C:\Users\ploc\AppData\Local\Temp\pip-in
>
> stall-r86ym617\pythonnet\packages'
>
>
>
>   NuGet Config files used:
>
>       C:\Users\ploc\AppData\Roaming\NuGet\NuGet.Config
>
>       C:\Program Files
> (x86)\NuGet\Config\Microsoft.VisualStudio.Offline.config
>
>
>
>   Feeds used:
>
>       C:\Users\ploc\.nuget\packages\
>
>       https://www.nuget.org/api/v2/
>
>       http://nuget.grapecity.com/nuget
>
>       C:\Program Files (x86)\Microsoft SDKs\NuGetPackages\
>
>
>
>   Installed:
>
>       3 package(s) to packages.config projects
>
>   Traceback (most recent call last):
>
>     File "tools\geninterop\geninterop.py", line 292, in <module>
>
>       sys.exit(main())
>
>     File "tools\geninterop\geninterop.py", line 272, in main
>
>       python_h = preprocess_python_headers()
>
>     File "tools\geninterop\geninterop.py", line 192, in
> preprocess_python_header
>
> s
>
>       for line in _check_output(cmd).splitlines():
>
>     File "tools\geninterop\geninterop.py", line 41, in _check_output
>
>       output = subprocess.check_output(*args, **kwargs)
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\subprocess.py", li
>
> ne 376, in check_output
>
>       **kwargs).stdout
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\subprocess.py", li
>
> ne 453, in run
>
>       with Popen(*popenargs, **kwargs) as process:
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\subprocess.py", li
>
> ne 756, in __init__
>
>       restore_signals, start_new_session)
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\subprocess.py", li
>
> ne 1155, in _execute_child
>
>       startupinfo)
>
>   FileNotFoundError: [WinError 2] The system cannot find the file specified
>
>   Traceback (most recent call last):
>
>     File "<string>", line 1, in <module>
>
>     File
> "C:\Users\ploc\AppData\Local\Temp\pip-install-r86ym617\pythonnet\setup.
>
> py", line 405, in <module>
>
>       zip_safe=False,
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\site-packages\setu
>
> ptools\__init__.py", line 140, in setup
>
>       return distutils.core.setup(**attrs)
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\core.py"
>
> , line 148, in setup
>
>       dist.run_commands()
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\dist.py"
>
> , line 966, in run_commands
>
>       self.run_command(cmd)
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\dist.py"
>
> , line 985, in run_command
>
>       cmd_obj.run()
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\site-packages\whee
>
> l\bdist_wheel.py", line 188, in run
>
>       self.run_command('build')
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\cmd.py",
>
> line 313, in run_command
>
>       self.distribution.run_command(command)
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\dist.py"
>
> , line 985, in run_command
>
>       cmd_obj.run()
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\command\
>
> build.py", line 135, in run
>
>       self.run_command(cmd_name)
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\cmd.py",
>
> line 313, in run_command
>
>       self.distribution.run_command(command)
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\dist.py"
>
> , line 985, in run_command
>
>       cmd_obj.run()
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\command\
>
> build_ext.py", line 339, in run
>
>       self.build_extensions()
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\command\
>
> build_ext.py", line 448, in build_extensions
>
>       self._build_extensions_serial()
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\command\
>
> build_ext.py", line 473, in _build_extensions_serial
>
>       self.build_extension(ext)
>
>     File
> "C:\Users\ploc\AppData\Local\Temp\pip-install-r86ym617\pythonnet\setup.
>
> py", line 191, in build_extension
>
>       subprocess.check_call([sys.executable, geninterop, interop_file])
>
>     File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\subprocess.py", li
>
> ne 328, in check_call
>
>       raise CalledProcessError(retcode, cmd)
>
>   subprocess.CalledProcessError: Command
> '['c:\\users\\ploc\\appdata\\local\\con
>
> tinuum\\anaconda3\\python.exe', 'tools\\geninterop\\geninterop.py',
> 'src\\runtim
>
> e\\interop37.cs']' returned non-zero exit status 1.
>
>
>
>   ----------------------------------------
>
>   Failed building wheel for pythonnet
>
>   Running setup.py clean for pythonnet
>
> Failed to build pythonnet
>
> Installing collected packages: pythonnet
>
>   Running setup.py install for pythonnet ... error
>
>     Complete output from command
> c:\users\ploc\appdata\local\continuum\anaconda3
>
> \python.exe -u -c "import setuptools,
> tokenize;__file__='C:\\Users\\ploc\\AppDat
>
> a\\Local\\Temp\\pip-install-r86ym617\\pythonnet\\setup.py';f=getattr(tokenize,
> '
>
> open', open)(__file__);code=f.read().replace('\r\n',
> '\n');f.close();exec(compil
>
> e(code, __file__, 'exec'))" install --record
> C:\Users\ploc\AppData\Local\Temp\pi
>
> p-record-qmhk9uw7\install-record.txt --single-version-externally-managed
> --compi
>
> le:
>
>     running install
>
>     running build
>
>     running build_ext
>
>     Checking for updates from https://www.nuget.org/api/v2/.
>
>     Currently running NuGet.exe 4.7.1.
>
>     NuGet.exe is up to date.
>
>     MSBuild auto-detection: using msbuild version '15.6.82.30579' from
> 'C:\Progr
>
> am Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\15.0\bin'.
>
>     All packages listed in packages.config are already installed.
>
>     Traceback (most recent call last):
>
>       File "tools\geninterop\geninterop.py", line 292, in <module>
>
>         sys.exit(main())
>
>       File "tools\geninterop\geninterop.py", line 272, in main
>
>         python_h = preprocess_python_headers()
>
>       File "tools\geninterop\geninterop.py", line 192, in
> preprocess_python_head
>
> ers
>
>         for line in _check_output(cmd).splitlines():
>
>       File "tools\geninterop\geninterop.py", line 41, in _check_output
>
>         output = subprocess.check_output(*args, **kwargs)
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\subprocess.py",
>
> line 376, in check_output
>
>         **kwargs).stdout
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\subprocess.py",
>
> line 453, in run
>
>         with Popen(*popenargs, **kwargs) as process:
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\subprocess.py",
>
> line 756, in __init__
>
>         restore_signals, start_new_session)
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\subprocess.py",
>
> line 1155, in _execute_child
>
>         startupinfo)
>
>     FileNotFoundError: [WinError 2] The system cannot find the file
> specified
>
>     Traceback (most recent call last):
>
>       File "<string>", line 1, in <module>
>
>       File
> "C:\Users\ploc\AppData\Local\Temp\pip-install-r86ym617\pythonnet\setu
>
> p.py", line 405, in <module>
>
>         zip_safe=False,
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\site-packages\se
>
> tuptools\__init__.py", line 140, in setup
>
>         return distutils.core.setup(**attrs)
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\core.p
>
> y", line 148, in setup
>
>         dist.run_commands()
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\dist.p
>
> y", line 966, in run_commands
>
>         self.run_command(cmd)
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\dist.p
>
> y", line 985, in run_command
>
>         cmd_obj.run()
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\site-packages\se
>
> tuptools\command\install.py", line 61, in run
>
>         return orig.install.run(self)
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\comman
>
> d\install.py", line 545, in run
>
>         self.run_command('build')
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\cmd.py
>
> ", line 313, in run_command
>
>         self.distribution.run_command(command)
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\dist.p
>
> y", line 985, in run_command
>
>         cmd_obj.run()
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\comman
>
> d\build.py", line 135, in run
>
>         self.run_command(cmd_name)
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\cmd.py
>
> ", line 313, in run_command
>
>         self.distribution.run_command(command)
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\dist.p
>
> y", line 985, in run_command
>
>         cmd_obj.run()
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\comman
>
> d\build_ext.py", line 339, in run
>
>         self.build_extensions()
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\comman
>
> d\build_ext.py", line 448, in build_extensions
>
>         self._build_extensions_serial()
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\distutils\comman
>
> d\build_ext.py", line 473, in _build_extensions_serial
>
>         self.build_extension(ext)
>
>       File
> "C:\Users\ploc\AppData\Local\Temp\pip-install-r86ym617\pythonnet\setu
>
> p.py", line 191, in build_extension
>
>         subprocess.check_call([sys.executable, geninterop, interop_file])
>
>       File
> "c:\users\ploc\appdata\local\continuum\anaconda3\lib\subprocess.py",
>
> line 328, in check_call
>
>         raise CalledProcessError(retcode, cmd)
>
>     subprocess.CalledProcessError: Command
> '['c:\\users\\ploc\\appdata\\local\\c
>
> ontinuum\\anaconda3\\python.exe', 'tools\\geninterop\\geninterop.py',
> 'src\\runt
>
> ime\\interop37.cs']' returned non-zero exit status 1.
>
>
>
>     ----------------------------------------
>
> Command "c:\users\ploc\appdata\local\continuum\anaconda3\python.exe -u -c
> "impor
>
> t setuptools,
> tokenize;__file__='C:\\Users\\ploc\\AppData\\Local\\Temp\\pip-inst
>
> all-r86ym617\\pythonnet\\setup.py';f=getattr(tokenize, 'open',
> open)(__file__);c
>
> ode=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__,
> 'exec'
>
> ))" install --record
> C:\Users\ploc\AppData\Local\Temp\pip-record-qmhk9uw7\instal
>
> l-record.txt --single-version-externally-managed --compile" failed with
> error co
>
> de 1 in C:\Users\ploc\AppData\Local\Temp\pip-install-r86ym617\pythonnet\
>
>
>
> Thanks,
>
>
>
> Phat
> _________________________________________________
> Python.NET mailing list - PythonDotNet at python.org
> https://mail.python.org/mailman/listinfo/pythondotnet
>
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From denis.akhiyarov at gmail.com  Fri Nov 30 09:49:27 2018
From: denis.akhiyarov at gmail.com (Denis Akhiyarov)
Date: Fri, 30 Nov 2018 08:49:27 -0600
Subject: [Python.NET] Embedded Python .Net example - running scripts
In-Reply-To: <CALxxJLQsJAxdpYzcBXLeuh1fOvLQGG_0h5tJCeVEFZvnky+8Yg@mail.gmail.com>
References: <BYAPR07MB471147AF34B175E4ACEE484BE4E90@BYAPR07MB4711.namprd07.prod.outlook.com>
 <1651768403.3910584.1538619134927@mail.yahoo.com>
 <CALxxJLQsJAxdpYzcBXLeuh1fOvLQGG_0h5tJCeVEFZvnky+8Yg@mail.gmail.com>
Message-ID: <CALxxJLTCjJTLWt4XZzNaOQR6nPxPGoXi5AwYM7CSavgfRHFw=A@mail.gmail.com>

Reloading/shutdown support of embedding CPython with pythonnet was added in
the master branch. See this pull request:

https://github.com/pythonnet/pythonnet/pull/752

On Thu, Oct 4, 2018 at 9:50 PM Denis Akhiyarov <denis.akhiyarov at gmail.com>
wrote:

> Please search the issue tracker on github for shutdown related issues.
> This was discussed extensively.
>
> There is WIP pull request worked on by 3 people to support this reloading
> scenario in Unity.
>
>
> On Wed, Oct 3, 2018, 9:50 PM Ron Harding via PythonDotNet <
> pythondotnet at python.org> wrote:
>
>> Did you try background or threadpool threads? Redirected process calls
>> and looking for stdin stdout stderr streams allows more control.
>>
>> Sent from Yahoo Mail on Android
>> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature>
>>
>> On Wed, Oct 3, 2018 at 15:47, Luke, Steve
>> <Steve.Luke at moldev.com> wrote:
>>
>> I am getting a crash trying to embed Python into my VB program using
>> Python for .NET.  The goal of my application is to allow users to run
>> their own python scripts inside a larger application.  The crash I am
>> getting happens the second time I run a script that imports certain large
>> libraries (like numpy or scikit-image) but does not affect all libraries
>> (for example PIL).
>>
>>
>>
>> My environment:
>>
>> Windows 10 Pro x64, Python 3.6.5 (in Anaconda), Python for .Net 2.4.0
>> (installed from git?s master branch).
>>
>>
>>
>> Here is the VB code:
>>
>>     Public Function Startup(ByRef param As String) As Integer
>>
>>         PythonEngine.Initialize()
>>
>>         'mm.PrintMsg(PythonEngine.BuildInfo)
>>
>>         'mm.PrintMsg(PythonEngine.Compiler)
>>
>>         'mm.PrintMsg(PythonEngine.Platform)
>>
>>         'mm.PrintMsg(PythonEngine.ProgramName)
>>
>>         'mm.PrintMsg(PythonEngine.PythonHome)
>>
>>         'mm.PrintMsg(PythonEngine.PythonPath)
>>
>>         Using (Py.GIL())
>>
>>
>>
>>             Dim scriptPath As String = param
>>
>>
>>
>>             Dim scriptDir As String = Path.GetDirectoryName(scriptPath)
>>
>>             Dim scriptName As String = GetPythonModuleName(scriptPath)
>>
>>             Dim scriptParam As String = ""
>>
>>
>>
>>             Dim scriptScope As PyScope = Py.CreateScope()
>>
>>
>>
>>             Dim scriptText As String =
>> My.Computer.FileSystem.ReadAllText(scriptPath)
>>
>>             scriptScope.Exec(scriptText)
>>
>>
>>
>>             If scriptScope.Contains(STARTUP_METHOD_NAME) Then
>>
>>                 scriptScope.Exec(String.Format("{0}(r'{1}')",
>> STARTUP_METHOD_NAME, scriptParam))
>>
>>             End If
>>
>>
>>
>>             scriptScope.Dispose()
>>
>>         End Using
>>
>>         PythonEngine.Shutdown()
>>
>>
>>
>>         Return 0
>>
>>     End Function
>>
>>
>>
>> And this is the Python script I am running:
>>
>> import skimage.io
>>
>>
>>
>> def Startup(param):
>>
>>     pass
>>
>>
>>
>> def Docommand(param):
>>
>>     pass
>>
>>
>>
>> def Shutdown():
>>
>>     pass
>>
>>
>>
>> When I run it the VB code the first time, things work great.  When I run
>> the VB code a second time (without first restarting the entire application)
>> I get an access violation exception on the scriptScope.Exec() call:
>>
>> *Exception:* System.AccessViolationException :
>>
>> *Message:* Attempted to read or write protected memory. This is often an
>> indication that other memory is corrupt.
>>
>> *Source:* Python.Runtime
>>
>> *StackTrace:*
>>
>>    at Python.Runtime.Runtime.PyObject_Call(IntPtr pointer, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.ImportHook.__import__(IntPtr self, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.Runtime.PyObject_Call(IntPtr pointer, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.ImportHook.__import__(IntPtr self, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.Runtime.PyObject_Call(IntPtr pointer, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.ImportHook.__import__(IntPtr self, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.Runtime.PyObject_Call(IntPtr pointer, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.ImportHook.__import__(IntPtr self, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.Runtime.PyObject_Call(IntPtr pointer, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.ImportHook.__import__(IntPtr self, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.Runtime.PyObject_Call(IntPtr pointer, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.ImportHook.__import__(IntPtr self, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.Runtime.PyObject_Call(IntPtr pointer, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.ImportHook.__import__(IntPtr self, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.Runtime.PyObject_Call(IntPtr pointer, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.ImportHook.__import__(IntPtr self, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.Runtime.PyObject_Call(IntPtr pointer, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.ImportHook.__import__(IntPtr self, IntPtr args,
>> IntPtr kw)
>>
>>    at Python.Runtime.Runtime.PyRun_String(String code, IntPtr st, IntPtr
>> globals, IntPtr locals)
>>
>>    at Python.Runtime.PyScope.Exec(String code, IntPtr _globals, IntPtr
>> _locals)
>>
>>    at MyApp.MyClass.Startup(String& param) in
>> C:\Git\MyPath\MyApp.vb:line 132
>>
>>  Unfortunately the stack trace doesn't show line numbers for anything in
>> the Python.Runtime.
>>
>>
>>
>> Interestingly, if you look at the VB code, I have some lines of commented
>> out code:
>>
>>         'mm.PrintMsg(PythonEngine.BuildInfo)
>>
>>         'mm.PrintMsg(PythonEngine.Compiler)
>>
>>         'mm.PrintMsg(PythonEngine.Platform)
>>
>>         'mm.PrintMsg(PythonEngine.ProgramName)
>>
>>         'mm.PrintMsg(PythonEngine.PythonHome)
>>
>>         'mm.PrintMsg(PythonEngine.PythonPath)
>>
>>
>> Since the app doesn?t have a console, this sends the text to the
>> enclosing app for display.  If I uncommon that code, then the first time
>> I run it I get:
>>
>> default, Mar 29 2018, 13:32:41
>>
>> [MSC v.1900 64 bit (AMD64)]
>>
>> win32
>>
>> python
>>
>>
>>
>> F:\Anaconda3\python36.zip;F:\Anaconda3\Lib;F:\Anaconda3\DLLs;C:\MX6
>>
>>
>>
>> And the second time I run it I get:
>>
>> default, Mar 29 2018, 13:32:41
>>
>> [MSC v.1900 64 bit (AMD64)]
>>
>> win32
>>
>> *pyth???*
>>
>> *???*
>>
>> F:\Anaconda3\python36.zip;F:\Anaconda3\Lib;F:\Anaconda3\DLLs;C:\MX6
>>
>>
>>
>> And the application doesn?t crash!  Instead it just says the skimage
>> module can?t be found.  Notice the bolded lines (bold added after the
>> fact).  The program name and python home values are being corrupted.
>>
>> Is there something I am doing wrong as far as taking down the
>> PythonEngine such that it could be put back up in an as-new state later on?
>>
>>
>> Steve
>>
>>
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