Trouble Installing Pythonnet for Anaconda - Newbie #780

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1. den-run-ai commented on Nov 19, 2018

   

   den-run-ai

   on Nov 19, 2018

   Last edited by den-run-ai

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   @Mattpdrexel your first issue is about ssl certificate error, just upgrade pip like suggested in the error message:

   https://stackoverflow.com/q/25981703/2230844

   For second error you did not provide the full output from the console, hence no resolution.

   For the third error the installation could not locate mt.exe on your system. What VS version do you have installed and what is the path to mt.exe on your system? We are using VS 2017 at the moment.
2. den-run-ai

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   waiting for user feedback

   on Nov 19, 2018
3. Mattpdrexel commented on Nov 20, 2018

   

   Mattpdrexel

   on Nov 20, 2018

   Last edited by Mattpdrexel

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   denfromufa,

   Thanks for the guidance. After figuring out how to specify trusted hosts, I was able to upgrade my pip, setuptools and wheel. I also installed git through conda.

   Now when I attempt to perform an install using the following command:
   pip install git+https://github.com/pythonnet/pythonnet --trusted-host github.com
   I get the following error messages:
   Failed building wheel for pythonnet
   and later
   error: option --single-version-externally-managed not recognized

   P.S.: I was not able to find an mt.exe file on my machine when looking in the expected folder locations:

   C:\Program Files (x86)\Microsoft Visual Studio 10.0
   C:\Program Files (x86)\Microsoft Visual Studio 14.0
   C:\Program Files (x86)\Microsoft SDKs

   I'm not sure if I have mt.exe installed on my machine at all.

   See below for full error message from attempt to install using pip install git+etc.:

   (base) C:\>git config --system http.sslVerify false
   
   (base) C:\>pip install git+https://github.com/pythonnet/pythonnet --trusted-host
    github.com
   Collecting git+https://github.com/pythonnet/pythonnet
     Cloning https://github.com/pythonnet/pythonnet to c:\users\pdmp0\appdata\local
   \temp\pip-req-build-1foofr96
   Building wheels for collected packages: pythonnet
     Running setup.py bdist_wheel for pythonnet ... error
     Complete output from command c:\users\pdmp0\appdata\local\continuum\anaconda3\
   python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\PDMP0\\AppDat
   a\\Local\\Temp\\pip-req-build-1foofr96\\setup.py';f=getattr(tokenize, 'open', op
   en)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, _
   _file__, 'exec'))" bdist_wheel -d C:\Users\PDMP0\AppData\Local\Temp\pip-wheel-jm
   pwu8r7 --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 4.1.0.
     Updating NuGet.exe to 4.7.1.
     Update successful.
     MSBuild auto-detection: using msbuild version '14.0' from 'C:\Program Files (x
   86)\MSBuild\14.0\bin\amd64'.
     Restoring NuGet package NUnit.ConsoleRunner.3.7.0.
     Restoring NuGet package NUnit.3.7.1.
     Restoring NuGet package UnmanagedExports.1.2.7.
     Adding package 'NUnit.ConsoleRunner.3.7.0' to folder 'C:\Users\PDMP0\AppData\L
   ocal\Temp\pip-req-build-1foofr96\packages'
     Adding package 'UnmanagedExports.1.2.7' to folder 'C:\Users\PDMP0\AppData\Loca
   l\Temp\pip-req-build-1foofr96\packages'
     Adding package 'NUnit.3.7.1' to folder 'C:\Users\PDMP0\AppData\Local\Temp\pip-
   req-build-1foofr96\packages'
     Added package 'UnmanagedExports.1.2.7' to folder 'C:\Users\PDMP0\AppData\Local
   \Temp\pip-req-build-1foofr96\packages'
     Added package 'NUnit.ConsoleRunner.3.7.0' to folder 'C:\Users\PDMP0\AppData\Lo
   cal\Temp\pip-req-build-1foofr96\packages'
     Added package 'NUnit.3.7.1' to folder 'C:\Users\PDMP0\AppData\Local\Temp\pip-r
   eq-build-1foofr96\packages'
   
     NuGet Config files used:
         C:\Users\PDMP0\AppData\Local\Temp\pip-req-build-1foofr96\NuGet.Config
         C:\Users\PDMP0\AppData\Roaming\NuGet\NuGet.Config
   
     Feeds used:
         C:\Users\PDMP0\.nuget\packages\
         https://dotnet.myget.org/F/dotnet-core/api/v3/index.json
         https://api.nuget.org/v3/index.json
   
     Installed:
         3 package(s) to packages.config projects
     Traceback (most recent call last):
       File "<string>", line 1, in <module>
       File "C:\Users\PDMP0\AppData\Local\Temp\pip-req-build-1foofr96\setup.py", li
   ne 534, in <module>
         zip_safe=False,
       File "c:\users\pdmp0\appdata\local\continuum\anaconda3\lib\site-packages\set
   uptools\__init__.py", line 143, in setup
         return distutils.core.setup(**attrs)
       File "c:\users\pdmp0\appdata\local\continuum\anaconda3\lib\distutils\core.py
   ", line 148, in setup
         dist.run_commands()
       File "c:\users\pdmp0\appdata\local\continuum\anaconda3\lib\distutils\dist.py
   ", line 966, in run_commands
         self.run_command(cmd)
       File "c:\users\pdmp0\appdata\local\continuum\anaconda3\lib\distutils\dist.py
   ", line 985, in run_command
         cmd_obj.run()
       File "C:\Users\PDMP0\AppData\Local\Temp\pip-req-build-1foofr96\setup.py", li
   ne 482, in run
         return bdist_wheel.bdist_wheel.run(self)
       File "c:\users\pdmp0\appdata\local\continuum\anaconda3\lib\site-packages\whe
   el\bdist_wheel.py", line 188, in run
         self.run_command('build')
       File "c:\users\pdmp0\appdata\local\continuum\anaconda3\lib\distutils\cmd.py"
   , line 313, in run_command
         self.distribution.run_command(command)
       File "c:\users\pdmp0\appdata\local\continuum\anaconda3\lib\distutils\dist.py
   ", line 985, in run_command
         cmd_obj.run()
       File "c:\users\pdmp0\appdata\local\continuum\anaconda3\lib\distutils\command
   \build.py", line 135, in run
         self.run_command(cmd_name)
       File "c:\users\pdmp0\appdata\local\continuum\anaconda3\lib\distutils\cmd.py"
   , line 313, in run_command
         self.distribution.run_command(command)
       File "c:\users\pdmp0\appdata\local\continuum\anaconda3\lib\distutils\dist.py
   ", line 985, in run_command
         cmd_obj.run()
       File "c:\users\pdmp0\appdata\local\continuum\anaconda3\lib\distutils\command
   \build_ext.py", line 339, in run
         self.build_extensions()
       File "c:\users\pdmp0\appdata\local\continuum\anaconda3\lib\distutils\command
   \build_ext.py", line 448, in build_extensions
         self._build_extensions_serial()
       File "c:\users\pdmp0\appdata\local\continuum\anaconda3\lib\distutils\command
   \build_ext.py", line 473, in _build_extensions_serial
         self.build_extension(ext)
       File "C:\Users\PDMP0\AppData\Local\Temp\pip-req-build-1foofr96\setup.py", li
   ne 257, in build_extension
         manifest = self._get_manifest(dest_dir)
       File "C:\Users\PDMP0\AppData\Local\Temp\pip-req-build-1foofr96\setup.py", li
   ne 274, in _get_manifest
         mt = self._find_msbuild_tool("mt.exe", use_windows_sdk=True)
       File "C:\Users\PDMP0\AppData\Local\Temp\pip-req-build-1foofr96\setup.py", li
   ne 399, in _find_msbuild_tool
         raise RuntimeError("{0} could not be found".format(tool))
     RuntimeError: mt.exe could not be found
   
     ----------------------------------------
     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\pdmp0\appdata\local\continuum\anaconda
   3\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\PDMP0\\AppD
   ata\\Local\\Temp\\pip-req-build-1foofr96\\setup.py';f=getattr(tokenize, 'open',
   open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code,
    __file__, 'exec'))" install --record C:\Users\PDMP0\AppData\Local\Temp\pip-reco
   rd-0smk2w6g\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 "c:\users\pdmp0\appdata\local\continuum\anaconda3\python.exe -u -c "impo
   rt setuptools, tokenize;__file__='C:\\Users\\PDMP0\\AppData\\Local\\Temp\\pip-re
   q-build-1foofr96\\setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.r
   ead().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" ins
   tall --record C:\Users\PDMP0\AppData\Local\Temp\pip-record-0smk2w6g\install-reco
   rd.txt --single-version-externally-managed --compile" failed with error code 1 i
   n C:\Users\PDMP0\AppData\Local\Temp\pip-req-build-1foofr96\
   
   (base) C:\>
   
   
4. den-run-ai commented on Nov 20, 2018

   

   den-run-ai

   on Nov 20, 2018

   Last edited by den-run-ai

   Contributor

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   just grab the wheels from appveyor artifacts for master branch. you cannot build from source without mt.exe - it comes with the MSVC or WinSDK:

   https://docs.microsoft.com/en-us/windows/desktop/sbscs/mt-exe

   The second error error: option --single-version-externally-managed not recognized can be avoid by building using setup.py. It is tracked here:

   #731
5. den-run-ai

   closed this as completedon Nov 20, 2018
6. den-run-ai commented on Nov 20, 2018

   

   den-run-ai

   on Nov 20, 2018

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   new users should just do pip install pythonnet
7. Mattpdrexel commented on Nov 20, 2018

   

   Mattpdrexel

   on Nov 20, 2018

   Author

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   denfromufa,

   Thanks for the additional response. I think I'll need to get a recent version of Windows SDK installed on my machine in order to get mt.exe. I'll pursue this now.

   In the meantime, I am not familiar with appveyor artifacts (what they are or how to use them). I'll need to look into this, but I feel like this may be too advanced for my current skill set.

   Thanks for the help.
8. den-run-ai commented on Nov 20, 2018

   

   den-run-ai

   on Nov 20, 2018 via email

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   Appveyor artifacts are documented in the installation wiki. mt.exe is better obtained via MSVC installation in VS 2017, not via WinSdk.

   …

   On Tue, Nov 20, 2018, 2:30 PM Mattpdrexel ***@***.***> wrote: denfromufa, Thanks for the additional response. I think I'll need to get a recent version of Windows SDK installed on my machine in order to get mt.exe. I'll pursue this now. In the meantime, I am not familiar with appveyor artifacts (what they are or how to use them). I'll need to look into this, but I feel like this may be too advanced for my current skill set. Thanks for the help. — You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub <#780 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AHgZ5aL6GXVw9FMwqcmlbejvg7hLwcROks5uxGZLgaJpZM4Ynq5p> .
9. den-run-ai commented on Nov 21, 2018

   

   den-run-ai

   on Nov 21, 2018

   Last edited by den-run-ai

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   You can get unofficial pythonnet for python 3.7 also here:

   https://www.lfd.uci.edu/~gohlke/pythonlibs/#pythonnet

   or grab the wheels from appveyor artifacts for master branch

   👍React with 👍6Reacted by Pingchuan Ma, Mattpdrexel, selplacei, Mark Mikofski, OneManMonkeySquad and Onurtag
10. Mattpdrexel commented on Nov 23, 2018

    

    Mattpdrexel

    on Nov 23, 2018

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    denfromufa,

    Looks like the unoffical install worked without a problem using pip install!

    Thanks for all the help!
    I'll eventually determine how to perform the official install once I identify issue with the mt.exe file location, but this works great for now.

    Thank you so much for all the help!