[Cannot install via pip on Windows 10] error: Unable to find vcvarsall.bat

[arvindpdmn]

I am using Python 3.5.2 on Windows 10. I have Microsoft Visual Studio 14 installed. In environment variables, I have the following:

VS140COMNTOOLS=C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\Tools\
VSINSTALLDIR=C:\Program Files (x86)\Microsoft Visual Studio 14.0\

I could not find any prebuilt binaries. So have to build. I ran pip install line_profiler from Developer Command Prompt VS2015 and I get this error:

C:\Program Files (x86)\Microsoft Visual Studio 14.0>pip install line_profiler
Collecting line_profiler
  Using cached line_profiler-1.0.tar.gz
Building wheels for collected packages: line-profiler
  Running setup.py bdist_wheel for line-profiler ... error
  Complete output from command C:\Users\arvindpdmn\Anaconda3\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\ARVIND~1\\AppData\\Local\\Temp\\pip-build-3v9i325n\\line-profiler\\setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" bdist_wheel -d C:\Users\ARVIND~1\AppData\Local\Temp\tmppb24vd4kpip-wheel- --python-tag cp35:
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build\lib.win-amd64-3.5
  copying line_profiler.py -> build\lib.win-amd64-3.5
  copying kernprof.py -> build\lib.win-amd64-3.5
  running build_ext
  skipping '_line_profiler.c' Cython extension (up-to-date)
  building '_line_profiler' extension
  error: Unable to find vcvarsall.bat

  ----------------------------------------
  Failed building wheel for line-profiler
  Running setup.py clean for line-profiler
Failed to build line-profiler
Installing collected packages: line-profiler
  Running setup.py install for line-profiler ... error
    Complete output from command C:\Users\arvindpdmn\Anaconda3\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\ARVIND~1\\AppData\\Local\\Temp\\pip-build-3v9i325n\\line-profiler\\setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record C:\Users\ARVIND~1\AppData\Local\Temp\pip-rw3tld7h-record\install-record.txt --single-version-externally-managed --compile:
    running install
    running build
    running build_py
    creating build
    creating build\lib.win-amd64-3.5
    copying line_profiler.py -> build\lib.win-amd64-3.5
    copying kernprof.py -> build\lib.win-amd64-3.5
    running build_ext
    skipping '_line_profiler.c' Cython extension (up-to-date)
    building '_line_profiler' extension
    error: Unable to find vcvarsall.bat

    ----------------------------------------
Command "C:\Users\arvindpdmn\Anaconda3\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\ARVIND~1\\AppData\\Local\\Temp\\pip-build-3v9i325n\\line-profiler\\setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record C:\Users\ARVIND~1\AppData\Local\Temp\pip-rw3tld7h-record\install-record.txt --single-version-externally-managed --compile" failed with error code 1 in C:\Users\ARVIND~1\AppData\Local\Temp\pip-build-3v9i325n\line-profiler\

[caethan]

line_profiler uses a compiled C++/Cython core, and when installing from source, you'll have to compile it on your local machine. As far as I can tell, this error is because you don't have a C++ compiler installed. See http://stackoverflow.com/questions/33323172/vcvarsall-bat-needed-for-python-to-compile-missing-from-visual-studio-2015-v-1

[arvindpdmn]

I have already gone through the steps mentioned in StackOverflow but this did not solve the problem. This was before I raised this issue here. Anyway, let me try out other approaches when I get the time.

[Rejerh]

I have the same problem, did you find a way to solve this problem?

[arvindpdmn]

@Rejerh No, I didn't solve this.

[UljanS]

Having the same issue for me it worked by installing Microsoft Visual C++ Compiler for Python 2.7
@ http://aka.ms/vcpython27

[amitsoftdeveloper]

Failed building wheel for PyAudio
Running setup.py clean for PyAudio