title: error installing pytorch using pip on windows 10
body: <p>I am trying to install pytorch with pip using</p>
  
  <pre><code>pip install torch
  </code></pre>
  
  <p>or</p>
  
  <pre><code>pip3 install torch===1.3.1 torchvision===0.4.2 -f https://download.pytorch.org/whl/torch_stable.html
  </code></pre>
  
  <p>with python 3.7.4</p>
  
  <p>and with python 3.8 (latest stable release)</p>
  
  <p>both on 32 and 64 bit.</p>
  
  <p>and getting</p>
  
  <pre><code>Collecting torch   Using cached
  https://files.pythonhosted.org/packages/f8/02/880b468bd382dc79896eaecbeb8ce95e9c4b99a24902874a2cef0b562cea/torch-0.1.2.post2.tar.gz
  Collecting pyyaml (from torch)   Downloading
  https://files.pythonhosted.org/packages/bc/3f/4f733cd0b1b675f34beb290d465a65e0f06b492c00b111d1b75125062de1/PyYAML-5.1.2-cp37-cp37m-win_amd64.whl
  (215kB)
      100% |████████████████████████████████| 225kB 1.2MB/s Installing collected packages: pyyaml, torch   Running setup.py install for torch
  ... error
      Complete output from command C:\Noam\Code\threadart\stav-rl\venv\Scripts\python.exe -u -c "import
  setuptools,
  tokenize;__file__='C:\\Users\\noams\\AppData\\Local\\Temp\\pip-install-djc6s2t8\\torch\\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\noams\AppData\Local\Temp\pip-record-zohv2zo7\install-record.txt
  --single-version-externally-managed --compile --install-headers C:\Noam\Code\threadart\stav-rl\venv\inclu de\site\python3.7\torch:
      running install
      running build_deps
      Traceback (most recent call last):
        File "&lt;string&gt;", line 1, in &lt;module&gt;
        File "C:\Users\noams\AppData\Local\Temp\pip-install-djc6s2t8\torch\setup.py",
  line 265, in &lt;module&gt;
          description="Tensors and Dynamic neural networks in Python with strong GPU acceleration",
        File "C:\Noam\Code\threadart\stav-rl\venv\lib\site-packages\setuptools-40.8.0-py3.7.egg\setuptools\__init__.py",
  line 145, in setup
        File "C:\Python37_x64\lib\distutils\core.py", line 148, in setup
          dist.run_commands()
        File "C:\Python37_x64\lib\distutils\dist.py", line 966, in run_commands
          self.run_command(cmd)
        File "C:\Python37_x64\lib\distutils\dist.py", line 985, in run_command
          cmd_obj.run()
        File "C:\Users\noams\AppData\Local\Temp\pip-install-djc6s2t8\torch\setup.py",
  line 99, in run
          self.run_command('build_deps')
        File "C:\Python37_x64\lib\distutils\cmd.py", line 313, in run_command
          self.distribution.run_command(command)
        File "C:\Python37_x64\lib\distutils\dist.py", line 985, in run_command
          cmd_obj.run()
        File "C:\Users\noams\AppData\Local\Temp\pip-install-djc6s2t8\torch\setup.py",
  line 51, in run
          from tools.nnwrap import generate_wrappers as generate_nn_wrappers
      ModuleNotFoundError: No module named 'tools.nnwrap'
  
      ---------------------------------------- Command "C:\Noam\Code\threadart\stav-rl\venv\Scripts\python.exe -u -c "import
  setuptools,
  tokenize;__file__='C:\\Users\\noams\\AppData\\Local\\Temp\\pip-install-djc6s2t8\\torch\\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\noams\AppData\Local\Temp\pip-record-zohv2zo7\install-record.txt
  --single-version-externally-managed --compile --install-headers C:\Noam\Code\threadart\stav-rl\venv\include\site\python3.7\torch" 
  failed with error code 1 in
  C:\Users\noams\AppData\Local\Temp\pip-install-djc6s2t8\torch\
  </code></pre>
  
  <p>clearly, I am doing something wrong.</p>
  
  <p>Please help!</p>