Error building in Linux

Environment

Pythonnet version: 2.4.0
Python version: 2.7.5
Operating System: Red Hat Enterprise Linux Server release 7.3 (Maipo)
DotNet version: 2.0.0

Details

Error restoring packages while trying to build from the command line in Linux
I used the following commands to create the issue:

    pip install wheel
    pip install pytest
    git clone https://github.com/pythonnet/pythonnet.git
    cd pythonnet
    python setup.py bdist_wheel --xplat

Details of the error below:

running bdist_wheel
running build
running build_ext
Microsoft (R) Build Engine version 15.3.409.57025 for .NET Core
Copyright (C) Microsoft Corporation. All rights reserved.

  Restore completed in 24.15 ms for /users/isys/icronyn/git/pythonnet/src/testing/Python.Test.15.csproj.
  Restore completed in 24.16 ms for /users/isys/icronyn/git/pythonnet/src/console/Console.15.csproj.
  Restore completed in 26.29 ms for /users/isys/icronyn/git/pythonnet/src/runtime/Python.Runtime.15.csproj.
  Restore completed in 86.12 ms for /users/isys/icronyn/git/pythonnet/src/embed_tests/Python.EmbeddingTest.15.csproj.
Microsoft (R) Build Engine version 15.3.409.57025 for .NET Core
Copyright (C) Microsoft Corporation. All rights reserved.

Microsoft (R) Build Engine version 15.3.409.57025 for .NET Core
Copyright (C) Microsoft Corporation. All rights reserved.

pyobject.cs(50,13): warning CS0162: Unreachable code detected [/users/isys/icronyn/git/pythonnet/src/runtime/Python.Runtime.15.csproj]
pythonexception.cs(64,13): warning CS0162: Unreachable code detected [/users/isys/icronyn/git/pythonnet/src/runtime/Python.Runtime.15.csproj]
delegatemanager.cs(204,13): warning CS0162: Unreachable code detected [/users/isys/icronyn/git/pythonnet/src/runtime/Python.Runtime.15.csproj]
pyscope.cs(534,13): warning CS0162: Unreachable code detected [/users/isys/icronyn/git/pythonnet/src/runtime/Python.Runtime.15.csproj]
  Python.Runtime.15 -> /users/isys/icronyn/git/pythonnet/src/runtime/bin/Python.Runtime.dll
pyobject.cs(50,13): warning CS0162: Unreachable code detected [/users/isys/icronyn/git/pythonnet/src/runtime/Python.Runtime.15.csproj]
delegatemanager.cs(204,13): warning CS0162: Unreachable code detected [/users/isys/icronyn/git/pythonnet/src/runtime/Python.Runtime.15.csproj]
pythonexception.cs(64,13): warning CS0162: Unreachable code detected [/users/isys/icronyn/git/pythonnet/src/runtime/Python.Runtime.15.csproj]
pyscope.cs(534,13): warning CS0162: Unreachable code detected [/users/isys/icronyn/git/pythonnet/src/runtime/Python.Runtime.15.csproj]
  Python.Runtime.15 -> /users/isys/icronyn/git/pythonnet/src/runtime/bin/netstandard2.0/Python.Runtime.dll
  Console.15 -> /users/isys/icronyn/git/pythonnet/src/console/bin/nPython.exe
  Python.Test.15 -> /users/isys/icronyn/git/pythonnet/src/testing/bin/Python.Test.dll
dynamic.cs(121,28): warning CS0618: 'PythonEngine.RunString(string, IntPtr?, IntPtr?)' is obsolete: 'RunString is deprecated and will be removed. Use Exec/Eval/RunSimpleString instead.' [/users/isys/icronyn/git/pythonnet/src/embed_tests/Python.EmbeddingTest.15.csproj]
  Python.EmbeddingTest.15 -> /users/isys/icronyn/git/pythonnet/src/embed_tests/bin/Python.EmbeddingTest.dll
  Python.Test.15 -> /users/isys/icronyn/git/pythonnet/src/testing/bin/netstandard2.0/Python.Test.dll
  Console.15 -> /users/isys/icronyn/git/pythonnet/src/console/bin/netcoreapp2.0/nPython.dll
dynamic.cs(121,28): warning CS0618: 'PythonEngine.RunString(string, IntPtr?, IntPtr?)' is obsolete: 'RunString is deprecated and will be removed. Use Exec/Eval/RunSimpleString instead.' [/users/isys/icronyn/git/pythonnet/src/embed_tests/Python.EmbeddingTest.15.csproj]
  Python.EmbeddingTest.15 -> /users/isys/icronyn/git/pythonnet/src/embed_tests/bin/netcoreapp2.0/Python.EmbeddingTest.dll
Microsoft (R) Build Engine version 15.3.409.57025 for .NET Core
Copyright (C) Microsoft Corporation. All rights reserved.

  Python.Runtime.15 -> /users/isys/icronyn/git/pythonnet/src/runtime/bin/netstandard2.0/Python.Runtime.dll
  Console.15 -> /users/isys/icronyn/git/pythonnet/src/console/bin/netcoreapp2.0/nPython.dll
  Console.15 -> /users/isys/icronyn/git/pythonnet/build/lib.linux-x86_64-2.7/netcoreapp2.0/
  Python.EmbeddingTest.15 -> /users/isys/icronyn/git/pythonnet/src/embed_tests/bin/netcoreapp2.0/Python.EmbeddingTest.dll
  Python.EmbeddingTest.15 -> /users/isys/icronyn/git/pythonnet/src/embed_tests/bin/netcoreapp2.0_publish/
Package mono-2 was not found in the pkg-config search path.
Perhaps you should add the directory containing `mono-2.pc'
to the PKG_CONFIG_PATH environment variable
No package 'mono-2' found
Traceback (most recent call last):
  File "setup.py", line 522, in <module>
    zip_safe=False,
  File "/opt/man/releases/python-medusa/27-1/lib/python2.7/distutils/core.py", line 151, in setup
    dist.run_commands()
  File "/opt/man/releases/python-medusa/27-1/lib/python2.7/distutils/dist.py", line 953, in run_commands
    self.run_command(cmd)
  File "/opt/man/releases/python-medusa/27-1/lib/python2.7/distutils/dist.py", line 972, in run_command
    cmd_obj.run()
  File "setup.py", line 470, in run
    return bdist_wheel.bdist_wheel.run(self)
  File "/users/isys/icronyn/pyenvs/pythonnet/lib/python2.7/site-packages/wheel-0.30.0-py2.7.egg/wheel/bdist_wheel.py", line 204, in run
    self.run_command('build')
  File "/opt/man/releases/python-medusa/27-1/lib/python2.7/distutils/cmd.py", line 326, in run_command
    self.distribution.run_command(command)
  File "/opt/man/releases/python-medusa/27-1/lib/python2.7/distutils/dist.py", line 972, in run_command
    cmd_obj.run()
  File "/opt/man/releases/python-medusa/27-1/lib/python2.7/distutils/command/build.py", line 127, in run
    self.run_command(cmd_name)
  File "/opt/man/releases/python-medusa/27-1/lib/python2.7/distutils/cmd.py", line 326, in run_command
    self.distribution.run_command(command)
  File "/opt/man/releases/python-medusa/27-1/lib/python2.7/distutils/dist.py", line 972, in run_command
    cmd_obj.run()
  File "/opt/man/releases/python-medusa/27-1/lib/python2.7/distutils/command/build_ext.py", line 339, in run
    self.build_extensions()
  File "/opt/man/releases/python-medusa/27-1/lib/python2.7/distutils/command/build_ext.py", line 448, in build_extensions
    self.build_extension(ext)
  File "setup.py", line 270, in build_extension
    self._build_monoclr()
  File "setup.py", line 284, in _build_monoclr
    mono_libs = _check_output("pkg-config --libs mono-2", shell=True)
  File "setup.py", line 98, in _check_output
    output = subprocess.check_output(*args, **kwargs)
  File "/opt/man/releases/python-medusa/27-1/lib/python2.7/subprocess.py", line 573, in check_output
    raise CalledProcessError(retcode, cmd, output=output)
subprocess.CalledProcessError: Command 'pkg-config --libs mono-2' returned non-zero exit status 1

Is this the same as #555 ?

@dmitriyse

Also tried the following as referred to by @dmitriyse in #531 :

python setup.py build_ext --xplat --inplace

Same error.

I need to research what the reason of mono-2 related problems. This error occurs not only in your environment.

Let me know if you need me to try help with debugging, provide extra log, etc

@Cronan

@Cronan what mono version do you have installed? and how did you install it? did you try without --xplat?

I don't have mono installed - is it still a requirement even with --xplat?

No, it's should not be required with --xplat option. Probably we have bug.

Setup.py contains:

def _build_monoclr(self):
        mono_libs = _check_output("pkg-config --libs mono-2", shell=True)
        mono_cflags = _check_output("pkg-config --cflags mono-2", shell=True)
        glib_libs = _check_output("pkg-config --libs glib-2.0", shell=True)
        glib_cflags = _check_output("pkg-config --cflags glib-2.0", shell=True)
        cflags = mono_cflags.strip() + " " + glib_cflags.strip()
        libs = mono_libs.strip() + " " + glib_libs.strip()

This is called here:

if DEVTOOLS == "Mono" or DEVTOOLS == "dotnet":
            self._build_monoclr()

It's basically a call to subprocess.check_output("pkg-config --libs mono-2", shell=True) that returning 1, which I'd expect, because I don't have mono installed.

Unless I'm oversimplifying ...

Yes, some problem exists. I need to re-inspect all setup.py to fix this problem. Stay tuned, I think I will fix it until tomorrow.

Works:

>>> subprocess.check_output("pkg-config --libs glib-2.0", shell=True)
'-lglib-2.0  \n'

Fails:

>>> subprocess.check_output("pkg-config --libs mono-2", shell=True)
Package mono-2 was not found in the pkg-config search path.
Perhaps you should add the directory containing `mono-2.pc'
to the PKG_CONFIG_PATH environment variable
No package 'mono-2' found
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/man/releases/python-medusa/27-1/lib/python2.7/subprocess.py", line 573, in check_output
    raise CalledProcessError(retcode, cmd, output=output)
subprocess.CalledProcessError: Command 'pkg-config --libs mono-2' returned non-zero exit status 1

Both run inside my python interpreter.

monoclr module can be build only when mono is installed.
When you have only dotnet core, it's should be allowed to work without monoclr module.
Currently the only way to work with pythonnet vs dotnet core is to run:

dotnet netcoreapp2.0/nPython.dll

I finally managed to build by editing setup.py, modifying the following line in BuildExtPythonnet.build_extension:

if DEVTOOLS == "Mono": #or DEVTOOLS == "dotnet":
self._build_monoclr()

This seems to complete the build, and I can then run using nPython:
dotnet ./build/lib.linux-x86_64-2.7/netcoreapp2.0/nPython.dll
>>>import clr
>>>from System import String, Char, Int32
>>>s = String.Overloads[Char, Int32]('A', 10)
>>> s.get_Length()
10

But as soon as I try other things, it crashes hard:
>>> from System.Collections.Generic import Dictionary

Expression: [Recursive resource lookup bug]
Description: Infinite recursion during resource lookup within System.Private.CoreLib.  This may be a bug in System.Private.CoreLib, or potentially in certain extensibility points such as assembly resolve events or CultureInfo names.  Resource name: ArgumentNull_Generic
Stack Trace:
   at System.SR.InternalGetResourceString(String key)
   at System.SR.GetResourceString(String resourceKey, String defaultString)
   at System.ArgumentNullException..ctor(String paramName)
   at System.Runtime.Loader.AssemblyLoadContext.GetLoadContext(Assembly assembly)
   at System.Reflection.Assembly.LoadFromResolveHandler(Object sender, ResolveEventArgs args)
   at System.AppDomain.OnAssemblyResolveEvent(RuntimeAssembly assembly, String assemblyFullName)
   at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks, IntPtr ptrLoadContextBinder)
   at System.Reflection.RuntimeAssembly.InternalGetSatelliteAssembly(String name, CultureInfo culture, Version version, Boolean throwOnFileNotFound, StackCrawlMark& stackMark)
   at System.Resources.ManifestBasedResourceGroveler.GetSatelliteAssembly(CultureInfo lookForCulture, StackCrawlMark& stackMark)
   at System.Resources.ManifestBasedResourceGroveler.GrovelForResourceSet(CultureInfo culture, Dictionary`2 localResourceSets, Boolean tryParents, Boolean createIfNotExists, StackCrawlMark& stackMark)
   at System.Resources.ResourceManager.InternalGetResourceSet(CultureInfo requestedCulture, Boolean createIfNotExists, Boolean tryParents, StackCrawlMark& stackMark)
   at System.Resources.ResourceManager.InternalGetResourceSet(CultureInfo culture, Boolean createIfNotExists, Boolean tryParents)
   at System.Resources.ResourceManager.GetString(String name, CultureInfo culture)
   at System.SR.InternalGetResourceString(String key)
   at System.SR.GetResourceString(String resourceKey, String defaultString)
   at System.ArgumentNullException..ctor(String paramName)
   at System.Runtime.Loader.AssemblyLoadContext.GetLoadContext(Assembly assembly)
   at System.Reflection.Assembly.LoadFromResolveHandler(Object sender, ResolveEventArgs args)
   at System.AppDomain.OnAssemblyResolveEvent(RuntimeAssembly assembly, String assemblyFullName)
   at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks, IntPtr ptrLoadContextBinder)
   at System.Reflection.RuntimeAssembly.InternalGetSatelliteAssembly(String name, CultureInfo culture, Version version, Boolean throwOnFileNotFound, StackCrawlMark& stackMark)
   at System.Resources.ManifestBasedResourceGroveler.GetSatelliteAssembly(CultureInfo lookForCulture, StackCrawlMark& stackMark)
   at System.Resources.ManifestBasedResourceGroveler.GrovelForResourceSet(CultureInfo culture, Dictionary`2 localResourceSets, Boolean tryParents, Boolean createIfNotExists, StackCrawlMark& stackMark)
   at System.Resources.ResourceManager.InternalGetResourceSet(CultureInfo requestedCulture, Boolean createIfNotExists, Boolean tryParents, StackCrawlMark& stackMark)
   at System.Resources.ResourceManager.InternalGetResourceSet(CultureInfo culture, Boolean createIfNotExists, Boolean tryParents)
   at System.Resources.ResourceManager.GetString(String name, CultureInfo culture)
   at System.SR.InternalGetResourceString(String key)
   at System.SR.GetResourceString(String resourceKey, String defaultString)
   at System.Runtime.Loader.AssemblyLoadContext.ResolveUsingEvent(AssemblyName assemblyName)
   at System.Runtime.Loader.AssemblyLoadContext.ResolveUsingResolvingEvent(IntPtr gchManagedAssemblyLoadContext, AssemblyName assemblyName)
   at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks, IntPtr ptrLoadContextBinder)
   at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, IntPtr ptrLoadContextBinder)
   at System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean forIntrospection)
   at System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
   at System.Reflection.Assembly.Load(String assemblyString)
   at Python.Runtime.AssemblyManager.LoadAssembly(String name) in /users/isys/icronyn/git/pythonnet/src/runtime/assemblymanager.cs:line 199
   at Python.Runtime.AssemblyManager.LoadImplicit(String name, Boolean warn) in /users/isys/icronyn/git/pythonnet/src/runtime/assemblymanager.cs:line 311
   at Python.Runtime.ModuleObject.GetAttribute(String name, Boolean guess) in /users/isys/icronyn/git/pythonnet/src/runtime/moduleobject.cs:line 125
   at Python.Runtime.ModuleObject.tp_getattro(IntPtr ob, IntPtr key) in /users/isys/icronyn/git/pythonnet/src/runtime/moduleobject.cs:line 276
   at Python.Runtime.Runtime.PyObject_Call(IntPtr pointer, 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) in /users/isys/icronyn/git/pythonnet/src/runtime/importhook.cs:line 236
   at Python.Runtime.Runtime.Py_Main(Int32 argc, String[] argv)
   at Python.Runtime.Runtime.Py_Main(Int32 argc, String[] argv)
   at Python.Runtime.PythonConsole.Main(String[] args) in /users/isys/icronyn/git/pythonnet/src/console/pythonconsole.cs:line 37```

I'm also unable to run the tests:

>>> pythonnet$ python -m pytest
from pkg_resources import iter_entry_points, DistributionNotFound
============================= test session starts ==============================
platform linux2 -- Python 2.7.11, pytest-2.9.1, py-1.4.31, pluggy-0.3.1
rootdir: /users/isys/xxxx/git/pythonnet, inifile: 
plugins: cov-2.2.1, shutil-1.2.8, virtualenv-1.2.7
collected 0 items / 1 errors 

==================================== ERRORS ====================================
______________________________ ERROR collecting  _______________________________
../../pyenvs/pythonnet/lib/python2.7/site-packages/py-1.4.31-py2.7.egg/py/_path/common.py:332: in visit
    for x in Visitor(fil, rec, ignore, bf, sort).gen(self):
../../pyenvs/pythonnet/lib/python2.7/site-packages/py-1.4.31-py2.7.egg/py/_path/common.py:378: in gen
    for p in self.gen(subdir):
../../pyenvs/pythonnet/lib/python2.7/site-packages/py-1.4.31-py2.7.egg/py/_path/common.py:368: in gen
    if p.check(dir=1) and (rec is None or rec(p))])
../../pyenvs/pythonnet/lib/python2.7/site-packages/pytest-2.9.1-py2.7.egg/_pytest/main.py:647: in _recurse
    ihook = self.gethookproxy(path)
../../pyenvs/pythonnet/lib/python2.7/site-packages/pytest-2.9.1-py2.7.egg/_pytest/main.py:550: in gethookproxy
    my_conftestmodules = pm._getconftestmodules(fspath)
../../pyenvs/pythonnet/lib/python2.7/site-packages/pytest-2.9.1-py2.7.egg/_pytest/config.py:297: in _getconftestmodules
    mod = self._importconftest(conftestpath)
../../pyenvs/pythonnet/lib/python2.7/site-packages/pytest-2.9.1-py2.7.egg/_pytest/config.py:322: in _importconftest
    raise ConftestImportFailure(conftestpath, sys.exc_info())
E   ConftestImportFailure: (local('/users/isys/xxxx/git/pythonnet/src/tests/conftest.py'), (<type 'exceptions.ImportError'>, ImportError('No module named clr',), <traceback object at 0x7f58fdf12cf8>))
=========================== 1 error in 0.15 seconds ============================

I managed to get the tests working in nPython by appending pytest and py to the sys.path.
However, the stack trace obtained looks very similar to the recursion issue I see above:

>>> import pytest
>>> pytest.main()
==================================== test session starts ====================================
platform linux2 -- Python 2.7.5, pytest-2.9.1, py-1.4.31, pluggy-0.3.1
rootdir: /users/isys/icronyn/git/pythonnet, inifile: 
Assert Failure
Expression: [Recursive resource lookup bug]
Description: Infinite recursion during resource lookup within System.Private.CoreLib.  This may be a bug in System.Private.CoreLib, or potentially in certain extensibility points such as assembly resolve events or CultureInfo names.  Resource name: ArgumentNull_Generic
Stack Trace:
   at System.SR.InternalGetResourceString(String key)
   at System.SR.GetResourceString(String resourceKey, String defaultString)
   at System.ArgumentNullException..ctor(String paramName)
   at System.Runtime.Loader.AssemblyLoadContext.GetLoadContext(Assembly assembly)
   at System.Reflection.Assembly.LoadFromResolveHandler(Object sender, ResolveEventArgs args)
   at System.AppDomain.OnAssemblyResolveEvent(RuntimeAssembly assembly, String assemblyFullName)
   at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks, IntPtr ptrLoadContextBinder)
   at System.Reflection.RuntimeAssembly.InternalGetSatelliteAssembly(String name, CultureInfo culture, Version version, Boolean throwOnFileNotFound, StackCrawlMark& stackMark)
   at System.Resources.ManifestBasedResourceGroveler.GetSatelliteAssembly(CultureInfo lookForCulture, StackCrawlMark& stackMark)
   at System.Resources.ManifestBasedResourceGroveler.GrovelForResourceSet(CultureInfo culture, Dictionary`2 localResourceSets, Boolean tryParents, Boolean createIfNotExists, StackCrawlMark& stackMark)
   at System.Resources.ResourceManager.InternalGetResourceSet(CultureInfo requestedCulture, Boolean createIfNotExists, Boolean tryParents, StackCrawlMark& stackMark)
   at System.Resources.ResourceManager.InternalGetResourceSet(CultureInfo culture, Boolean createIfNotExists, Boolean tryParents)
   at System.Resources.ResourceManager.GetString(String name, CultureInfo culture)
   at System.SR.InternalGetResourceString(String key)
   at System.SR.GetResourceString(String resourceKey, String defaultString)
   at System.ArgumentNullException..ctor(String paramName)
   at System.Runtime.Loader.AssemblyLoadContext.GetLoadContext(Assembly assembly)
   at System.Reflection.Assembly.LoadFromResolveHandler(Object sender, ResolveEventArgs args)
   at System.AppDomain.OnAssemblyResolveEvent(RuntimeAssembly assembly, String assemblyFullName)
   at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks, IntPtr ptrLoadContextBinder)
   at System.Reflection.RuntimeAssembly.InternalGetSatelliteAssembly(String name, CultureInfo culture, Version version, Boolean throwOnFileNotFound, StackCrawlMark& stackMark)
   at System.Resources.ManifestBasedResourceGroveler.GetSatelliteAssembly(CultureInfo lookForCulture, StackCrawlMark& stackMark)
   at System.Resources.ManifestBasedResourceGroveler.GrovelForResourceSet(CultureInfo culture, Dictionary`2 localResourceSets, Boolean tryParents, Boolean createIfNotExists, StackCrawlMark& stackMark)
   at System.Resources.ResourceManager.InternalGetResourceSet(CultureInfo requestedCulture, Boolean createIfNotExists, Boolean tryParents, StackCrawlMark& stackMark)
   at System.Resources.ResourceManager.InternalGetResourceSet(CultureInfo culture, Boolean createIfNotExists, Boolean tryParents)
   at System.Resources.ResourceManager.GetString(String name, CultureInfo culture)
   at System.SR.InternalGetResourceString(String key)
   at System.SR.GetResourceString(String resourceKey, String defaultString)
   at System.Runtime.Loader.AssemblyLoadContext.ResolveUsingEvent(AssemblyName assemblyName)
   at System.Runtime.Loader.AssemblyLoadContext.ResolveUsingResolvingEvent(IntPtr gchManagedAssemblyLoadContext, AssemblyName assemblyName)
   at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks, IntPtr ptrLoadContextBinder)
   at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, IntPtr ptrLoadContextBinder)
   at System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean forIntrospection)
   at System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
   at System.Reflection.Assembly.Load(String assemblyString)
   at Python.Runtime.AssemblyManager.LoadAssembly(String name) in /users/isys/icronyn/git/pythonnet/src/runtime/assemblymanager.cs:line 199
   at Python.Runtime.AssemblyManager.LoadImplicit(String name, Boolean warn) in /users/isys/icronyn/git/pythonnet/src/runtime/assemblymanager.cs:line 311
   at Python.Runtime.ModuleObject.GetAttribute(String name, Boolean guess) in /users/isys/icronyn/git/pythonnet/src/runtime/moduleobject.cs:line 125
   at Python.Runtime.ModuleObject.tp_getattro(IntPtr ob, IntPtr key) in /users/isys/icronyn/git/pythonnet/src/runtime/moduleobject.cs:line 276
   at Python.Runtime.Runtime.Py_Main(Int32 argc, String[] argv)
   at Python.Runtime.Runtime.Py_Main(Int32 argc, String[] argv)
   at Python.Runtime.PythonConsole.Main(String[] args) in /users/isys/icronyn/git/pythonnet/src/console/pythonconsole.cs:line 37

Oh dear
https://github.com/dotnet/coreclr/issues/12668

Looks like it was fixed but missed the cutoff for the 2.0.0 release
Now if I could only work out how to change the thread culture from inside pythonengine.cs ...

Thread.CurrentThread.CurrentUICulture = new CultureInfo("en-US");
Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");

Any hints where I could do this as a workaround?
I tried doing it after PythonEngine.Initialize();, but it doesn't seem to make a difference ...

@Cronan

@Cronan can't you just switch your local CultureInfo settings on this machine as a temporary workaround?

@Cronan

@Cronan alternatively just install .NET Core 2.0.3 released few weeks ago: https://github.com/dotnet/core/blob/master/release-notes/download-archives/2.0.3.md

@denfromufa I don't have a dedicated headnode, and 2.0.3 won't be available via the standard Enterprise upgrade cycle for a few weeks, but I've got a plan to test this on Monday.

@denfromufa OK, figured out how to change my locale, and the tests are now running.
Any ideas what this could be? Is it fixed by something in another branch?

============================================================================== test session starts ==============================================================================
platform linux2 -- Python 2.7.5, pytest-2.9.1, py-1.4.31, pluggy-0.3.1
rootdir: /users/isys/icronyn/git/pythonnet, inifile: 
collected 376 items 

src/tests/test_array.py .....................................F..
src/tests/test_callback.py ..
src/tests/test_class.py .......F..F..FF...
src/tests/test_clrmethod.py FFFFF
src/tests/test_compat.py ......FFFF....F.
src/tests/test_constructors.py ....
src/tests/test_conversion.py ....................
src/tests/test_delegate.py ...
Unhandled Exception: System.MissingMethodException: Constructor on type 'System.Reflection.Emit.TypeBuilder' not found.
   at System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes, StackCrawlMark& stackMark)
   at System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)
   at System.Activator.CreateInstance(Type type, Object[] args)
   at Python.Runtime.DelegateManager.GetDelegate(Type dtype, IntPtr callable) in /users/isys/icronyn/git/pythonnet/src/runtime/delegatemanager.cs:line 159
   at Python.Runtime.DelegateObject.tp_new(IntPtr tp, IntPtr args, IntPtr kw) in /users/isys/icronyn/git/pythonnet/src/runtime/delegateobject.cs:line 61
   at Python.Runtime.MetaType.tp_call(IntPtr tp, IntPtr args, IntPtr kw) in /users/isys/icronyn/git/pythonnet/src/runtime/metatype.cs:line 148
   at Python.Runtime.Runtime.Py_Main(Int32 argc, String[] argv)
   at Python.Runtime.PythonConsole.Main(String[] args) in /users/isys/icronyn/git/pythonnet/src/console/pythonconsole.cs:line 37
Aborted

Fixed with #572

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Error building in Linux #571

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Error building in Linux #571

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Cronan commented on Nov 14, 2017

Cronan commented on Nov 14, 2017

dmitriyse commented on Nov 14, 2017

Cronan commented on Nov 14, 2017

den-run-ai commented on Nov 14, 2017

Cronan commented on Nov 14, 2017

dmitriyse commented on Nov 14, 2017

Cronan commented on Nov 14, 2017

dmitriyse commented on Nov 14, 2017

Cronan commented on Nov 14, 2017

dmitriyse commented on Nov 15, 2017

Cronan commented on Dec 7, 2017

Cronan commented on Dec 7, 2017

Cronan commented on Dec 8, 2017

Cronan commented on Dec 8, 2017

den-run-ai commented on Dec 8, 2017

den-run-ai commented on Dec 8, 2017

Cronan commented on Dec 8, 2017

Cronan commented on Dec 8, 2017

Cronan commented on Dec 12, 2017

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