title: How to solve error while installing numba?
body: <p>so I have a problem while I have try to install numba to python by using the pip command in CMD (pip install numba ), and I always get the following output and error :</p>
  <pre><code>Collecting numba
    Using cached numba-0.51.2.tar.gz (2.1 MB)
  Requirement already satisfied: numpy&gt;=1.15 in c:\users\se_320_gb\appdata\local\programs\python\python39\lib\site-packages (from numba) (1.19.4)
  Requirement already satisfied: setuptools in c:\users\se_320_gb\appdata\local\programs\python\python39\lib\site-packages (from numba) (49.2.1)
  Collecting llvmlite&lt;0.35,&gt;=0.34.0.dev0
    Using cached llvmlite-0.34.0.tar.gz (107 kB)
  Using legacy 'setup.py install' for numba, since package 'wheel' is not installed.
  Using legacy 'setup.py install' for llvmlite, since package 'wheel' is not installed.
  Installing collected packages: llvmlite, numba
      Running setup.py install for llvmlite ... error
      ERROR: Command errored out with exit status 1:
       command: 'c:\users\se_320_gb\appdata\local\programs\python\python39\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '&quot;'&quot;'C:\\Users\\Se_320_Gb\\AppData\\Local\\Temp\\pip-install-_v76h2mu\\llvmlite_0c956b9ff442433e8d48ac4e37563a11\\setup.py'&quot;'&quot;'; __file__='&quot;'&quot;'C:\\Users\\Se_320_Gb\\AppData\\Local\\Temp\\pip-install-_v76h2mu\\llvmlite_0c956b9ff442433e8d48ac4e37563a11\\setup.py'&quot;'&quot;';f=getattr(tokenize, '&quot;'&quot;'open'&quot;'&quot;', open)(__file__);code=f.read().replace('&quot;'&quot;'\r\n'&quot;'&quot;', '&quot;'&quot;'\n'&quot;'&quot;');f.close();exec(compile(code, __file__, '&quot;'&quot;'exec'&quot;'&quot;'))' install --record 'C:\Users\Se_320_Gb\AppData\Local\Temp\pip-record-phjgzn90\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\users\se_320_gb\appdata\local\programs\python\python39\Include\llvmlite'
           cwd: C:\Users\Se_320_Gb\AppData\Local\Temp\pip-install-_v76h2mu\llvmlite_0c956b9ff442433e8d48ac4e37563a11\
      Complete output (27 lines):
      running install
      running build
      got version from file C:\Users\Se_320_Gb\AppData\Local\Temp\pip-install-_v76h2mu\llvmlite_0c956b9ff442433e8d48ac4e37563a11\llvmlite/_version.py {'version': '0.34.0', 'full': 'c5889c9e98c6b19d5d85ebdd982d64a03931f8e2'}
      running build_ext
      c:\users\se_320_gb\appdata\local\programs\python\python39\python.exe C:\Users\Se_320_Gb\AppData\Local\Temp\pip-install-_v76h2mu\llvmlite_0c956b9ff442433e8d48ac4e37563a11\ffi\build.py
      Trying generator 'Visual Studio 15 2017 Win64'
      Traceback (most recent call last):
        File &quot;C:\Users\Se_320_Gb\AppData\Local\Temp\pip-install-_v76h2mu\llvmlite_0c956b9ff442433e8d48ac4e37563a11\ffi\build.py&quot;, line 191, in &lt;module&gt;
          main()
        File &quot;C:\Users\Se_320_Gb\AppData\Local\Temp\pip-install-_v76h2mu\llvmlite_0c956b9ff442433e8d48ac4e37563a11\ffi\build.py&quot;, line 179, in main
          main_win32()
        File &quot;C:\Users\Se_320_Gb\AppData\Local\Temp\pip-install-_v76h2mu\llvmlite_0c956b9ff442433e8d48ac4e37563a11\ffi\build.py&quot;, line 88, in main_win32
          generator = find_win32_generator()
        File &quot;C:\Users\Se_320_Gb\AppData\Local\Temp\pip-install-_v76h2mu\llvmlite_0c956b9ff442433e8d48ac4e37563a11\ffi\build.py&quot;, line 76, in find_win32_generator
          try_cmake(cmake_dir, build_dir, generator)
        File &quot;C:\Users\Se_320_Gb\AppData\Local\Temp\pip-install-_v76h2mu\llvmlite_0c956b9ff442433e8d48ac4e37563a11\ffi\build.py&quot;, line 28, in try_cmake
          subprocess.check_call(['cmake', '-G', generator, cmake_dir])
        File &quot;c:\users\se_320_gb\appdata\local\programs\python\python39\lib\subprocess.py&quot;, line 368, in check_call
          retcode = call(*popenargs, **kwargs)
        File &quot;c:\users\se_320_gb\appdata\local\programs\python\python39\lib\subprocess.py&quot;, line 349, in call
          with Popen(*popenargs, **kwargs) as p:
        File &quot;c:\users\se_320_gb\appdata\local\programs\python\python39\lib\subprocess.py&quot;, line 947, in __init__
          self._execute_child(args, executable, preexec_fn, close_fds,
        File &quot;c:\users\se_320_gb\appdata\local\programs\python\python39\lib\subprocess.py&quot;, line 1416, in _execute_child
          hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
      FileNotFoundError: [WinError 2] The system cannot find the file specified
      error: command 'c:\\users\\se_320_gb\\appdata\\local\\programs\\python\\python39\\python.exe' failed with exit code 1
      ----------------------------------------
  ERROR: Command errored out with exit status 1: 'c:\users\se_320_gb\appdata\local\programs\python\python39\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '&quot;'&quot;'C:\\Users\\Se_320_Gb\\AppData\\Local\\Temp\\pip-install-_v76h2mu\\llvmlite_0c956b9ff442433e8d48ac4e37563a11\\setup.py'&quot;'&quot;'; __file__='&quot;'&quot;'C:\\Users\\Se_320_Gb\\AppData\\Local\\Temp\\pip-install-_v76h2mu\\llvmlite_0c956b9ff442433e8d48ac4e37563a11\\setup.py'&quot;'&quot;';f=getattr(tokenize, '&quot;'&quot;'open'&quot;'&quot;', open)(__file__);code=f.read().replace('&quot;'&quot;'\r\n'&quot;'&quot;', '&quot;'&quot;'\n'&quot;'&quot;');f.close();exec(compile(code, __file__, '&quot;'&quot;'exec'&quot;'&quot;'))' install --record 'C:\Users\Se_320_Gb\AppData\Local\Temp\pip-record-phjgzn90\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\users\se_320_gb\appdata\local\programs\python\python39\Include\llvmlite' Check the logs for full command output.
  
  
  </code></pre>
  <p>I have tried to uninstall then reinstall PyCharm and python but these does not work
  I think that the probleme have some thing with the environment variables<br />
  I am using a python version 3.9.1 with PyCharm version 2020.3.1 ,if any additional information needed ask me pls</p>