$ pip install git+https://github.com/pythonnet/pythonnetCollecting git+https://github.com/pythonnet/pythonnet  Cloning https://github.com/pythonnet/pythonnet to /tmp/pip-jY3N1G-buildInstalling collected packages: pythonnet  Running setup.py install for pythonnet ... error    Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-jY3N1G-build/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-Xvwc8d-record/install-record.txt --single-version-externally-managed --compile:    usage: -c [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]       or: -c --help [cmd1 cmd2 ...]       or: -c --help-commands       or: -c cmd --help        error: option --single-version-externally-managed not recognized        ----------------------------------------Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-jY3N1G-build/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-Xvwc8d-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-jY3N1G-build/

$ sudo -H pip install pythonnetCollecting pythonnet  Using cached pythonnet-2.3.0.tar.gzBuilding wheels for collected packages: pythonnet  Running setup.py bdist_wheel for pythonnet ... error  Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-2paJ4D/pythonnet/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /tmp/tmpAYPkUUpip-wheel- --python-tag cp27:  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 4.5.1.  Update successful.  MSBuild auto-detection: using msbuild version '14.0' from '/usr/lib/mono/xbuild/14.0/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.3.6.0' to folder '/tmp/pip-build-2paJ4D/pythonnet/packages'  Adding package 'UnmanagedExports.1.2.7' to folder '/tmp/pip-build-2paJ4D/pythonnet/packages'  Adding package 'NUnit.ConsoleRunner.3.6.0' to folder '/tmp/pip-build-2paJ4D/pythonnet/packages'  Added package 'UnmanagedExports.1.2.7' to folder '/tmp/pip-build-2paJ4D/pythonnet/packages'  Added package 'NUnit.ConsoleRunner.3.6.0' to folder '/tmp/pip-build-2paJ4D/pythonnet/packages'  Added package 'NUnit.3.6.0' to folder '/tmp/pip-build-2paJ4D/pythonnet/packages'    NuGet Config files used:      /root/.config/NuGet/NuGet.Config    Feeds used:      /root/.nuget/packages/      https://api.nuget.org/v3/index.json    Installed:      3 package(s) to packages.config projects    >>>> xbuild tool is deprecated and will be removed in future updates, use msbuild instead <<<<    XBuild Engine Version 14.0  Mono, Version 5.10.1.20  Copyright (C) 2005-2013 Various Mono authors    >>>> xbuild tool is deprecated and will be removed in future updates, use msbuild instead <<<<    XBuild Engine Version 14.0  Mono, Version 5.10.1.20  Copyright (C) 2005-2013 Various Mono authors  Configuration: ReleaseMono Platform: x64  /tmp/pip-build-2paJ4D/pythonnet/src/runtime/Python.Runtime.csproj: error : Error executing task Copy: Error converting Property named 'SourceFiles' with value '$(TargetAssemblyPdb)' to type Microsoft.Build.Framework.ITaskItem[]: Can't concatenate Item list with other strings where an item list is expected ('@(_OutDirItem->'%(FullPath)')', 'Python.Runtime.pdb'). Use semi colon to separate items.  Traceback (most recent call last):    File "<string>", line 1, in <module>    File "/tmp/pip-build-2paJ4D/pythonnet/setup.py", line 405, in <module>      zip_safe=False,    File "/usr/local/lib/python2.7/dist-packages/setuptools/__init__.py", line 129, in setup      return distutils.core.setup(**attrs)    File "/usr/lib/python2.7/distutils/core.py", line 151, in setup      dist.run_commands()    File "/usr/lib/python2.7/distutils/dist.py", line 953, in run_commands      self.run_command(cmd)    File "/usr/lib/python2.7/distutils/dist.py", line 972, in run_command      cmd_obj.run()    File "/usr/local/lib/python2.7/dist-packages/wheel/bdist_wheel.py", line 204, in run      self.run_command('build')    File "/usr/lib/python2.7/distutils/cmd.py", line 326, in run_command      self.distribution.run_command(command)    File "/usr/lib/python2.7/distutils/dist.py", line 972, in run_command      cmd_obj.run()    File "/usr/lib/python2.7/distutils/command/build.py", line 128, in run      self.run_command(cmd_name)    File "/usr/lib/python2.7/distutils/cmd.py", line 326, in run_command      self.distribution.run_command(command)    File "/usr/lib/python2.7/distutils/dist.py", line 972, in run_command      cmd_obj.run()    File "/usr/lib/python2.7/distutils/command/build_ext.py", line 339, in run      self.build_extensions()    File "/usr/lib/python2.7/distutils/command/build_ext.py", line 448, in build_extensions      self.build_extension(ext)    File "/tmp/pip-build-2paJ4D/pythonnet/setup.py", line 222, in build_extension      subprocess.check_call(" ".join(cmd + ["/t:Build"]), shell=use_shell)    File "/usr/lib/python2.7/subprocess.py", line 541, in check_call      raise CalledProcessError(retcode, cmd)  subprocess.CalledProcessError: Command 'xbuild pythonnet.sln /p:Configuration=ReleaseMono /p:Platform=x64 /p:DefineConstants="PYTHON27,PYTHON2,UCS4,MONO_LINUX,PYTHON_WITHOUT_ENABLE_SHARED" /p:PythonBuildDir="/tmp/pip-build-2paJ4D/pythonnet/build/lib.linux-x86_64-2.7" /p:PythonInteropFile="interop27.cs" /verbosity:minimal /t:Build' returned non-zero exit status 1    ----------------------------------------  Failed building wheel for pythonnet  Running setup.py clean for pythonnetFailed to build pythonnetInstalling collected packages: pythonnet  Running setup.py install for pythonnet ... error    Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-2paJ4D/pythonnet/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-e6eIuH-record/install-record.txt --single-version-externally-managed --compile:    running install    running build    running build_ext    Checking for updates from https://www.nuget.org/api/v2/.    Currently running NuGet.exe 4.5.1.    NuGet.exe is up to date.    MSBuild auto-detection: using msbuild version '14.0' from '/usr/lib/mono/xbuild/14.0/bin'.    All packages listed in packages.config are already installed.        >>>> xbuild tool is deprecated and will be removed in future updates, use msbuild instead <<<<        XBuild Engine Version 14.0    Mono, Version 5.10.1.20    Copyright (C) 2005-2013 Various Mono authors        >>>> xbuild tool is deprecated and will be removed in future updates, use msbuild instead <<<<        XBuild Engine Version 14.0    Mono, Version 5.10.1.20    Copyright (C) 2005-2013 Various Mono authors    Configuration: ReleaseMono Platform: x64    /tmp/pip-build-2paJ4D/pythonnet/src/runtime/Python.Runtime.csproj: error : Error executing task Copy: Error converting Property named 'SourceFiles' with value '$(TargetAssemblyPdb)' to type Microsoft.Build.Framework.ITaskItem[]: Can't concatenate Item list with other strings where an item list is expected ('@(_OutDirItem->'%(FullPath)')', 'Python.Runtime.pdb'). Use semi colon to separate items.    Traceback (most recent call last):      File "<string>", line 1, in <module>      File "/tmp/pip-build-2paJ4D/pythonnet/setup.py", line 405, in <module>        zip_safe=False,      File "/usr/local/lib/python2.7/dist-packages/setuptools/__init__.py", line 129, in setup        return distutils.core.setup(**attrs)      File "/usr/lib/python2.7/distutils/core.py", line 151, in setup        dist.run_commands()      File "/usr/lib/python2.7/distutils/dist.py", line 953, in run_commands        self.run_command(cmd)      File "/usr/lib/python2.7/distutils/dist.py", line 972, in run_command        cmd_obj.run()      File "/usr/local/lib/python2.7/dist-packages/setuptools/command/install.py", line 61, in run        return orig.install.run(self)      File "/usr/lib/python2.7/distutils/command/install.py", line 601, in run        self.run_command('build')      File "/usr/lib/python2.7/distutils/cmd.py", line 326, in run_command        self.distribution.run_command(command)      File "/usr/lib/python2.7/distutils/dist.py", line 972, in run_command        cmd_obj.run()      File "/usr/lib/python2.7/distutils/command/build.py", line 128, in run        self.run_command(cmd_name)      File "/usr/lib/python2.7/distutils/cmd.py", line 326, in run_command        self.distribution.run_command(command)      File "/usr/lib/python2.7/distutils/dist.py", line 972, in run_command        cmd_obj.run()      File "/usr/lib/python2.7/distutils/command/build_ext.py", line 339, in run        self.build_extensions()      File "/usr/lib/python2.7/distutils/command/build_ext.py", line 448, in build_extensions        self.build_extension(ext)      File "/tmp/pip-build-2paJ4D/pythonnet/setup.py", line 222, in build_extension        subprocess.check_call(" ".join(cmd + ["/t:Build"]), shell=use_shell)      File "/usr/lib/python2.7/subprocess.py", line 541, in check_call        raise CalledProcessError(retcode, cmd)    subprocess.CalledProcessError: Command 'xbuild pythonnet.sln /p:Configuration=ReleaseMono /p:Platform=x64 /p:DefineConstants="PYTHON27,PYTHON2,UCS4,MONO_LINUX,PYTHON_WITHOUT_ENABLE_SHARED" /p:PythonBuildDir="/tmp/pip-build-2paJ4D/pythonnet/build/lib.linux-x86_64-2.7" /p:PythonInteropFile="interop27.cs" /verbosity:minimal /t:Build' returned non-zero exit status 1        ----------------------------------------Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-2paJ4D/pythonnet/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-e6eIuH-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-2paJ4D/pythonnet/