Error Microsoft Visual C 10 0 is required Unable to find vcvarsall bat when running Python script

Question

Im trying to install numpy with PyCharm but i keep getting this error       error  Microsoft Visual C   10 0 is required  Unable to find   vcvarsall bat     Can someone please explain to me exactly what i have to do to fix this error and as simple and detailed as possible   im using python 3 4 2  i know this has been answered before but i did not understand it

User · Accepted Answer

I got the same error and ended up using a pre-built distribution of numpy available in SourceForge (similarly, a distribution of matplotlib can be obtained).

Builds for both 32-bit 2.7 and 3.3/3.4 are available.
PyCharm detected them straight away, of course.

User · Answer

you can download  whl in LFD   Then use  pip install     whl  in CMD

User · Answer

I have encountered this problem twice  First time I used VS 2013 and the second time I used VS 2015 with different solution  The first solution on VS 2013 and python 2 7 is    Click win R Enter SET VS90COMNTOOLS  VS120COMNTOOLS  Close all windows Enter pip install again   Now  one year later  I have found an easier method to fix it  This time I use VS 2015 and python 3 4    Right click on My Computer  Click Properties Advanced system settings Environment variables Add New system variable Enter VS100COMNTOOLSto the variable name Enter the value of VS140COMNTOOLSto the new variable  Close all windows   Now I m sure you will ask some question what is the VSXXXCOMNTOOLSand what should I do if I use VS2008 or other compiler   There is a file python Lib distutils msvc9compiler py  beginning on line 216 we see  def find vcvarsall version          Find the vcvarsall bat file     At first it tries to find the productdir of VS 2010 in the registry  If     that fails it falls back to the VS100COMNTOOLS env var            It means that you must give the productdir of VS 2010 for it  so if you are using  python 2 x and    Visual Studio 2010  VS10  SET VS90COMNTOOLS  VS100COMNTOOLS  Visual Studio 2012  VS11  SET VS90COMNTOOLS  VS110COMNTOOLS  Visual Studio 2013  VS12  SET VS90COMNTOOLS  VS120COMNTOOLS  Visual Studio 2015  VS15  SET VS90COMNTOOLS  VS140COMNTOOLS    or if you are using python 3 x and    Visual Studio 2010  VS10  SET VS100COMNTOOLS  VS100COMNTOOLS  Visual Studio 2012  VS11  SET VS100COMNTOOLS  VS110COMNTOOLS  Visual Studio 2013  VS12  SET VS100COMNTOOLS  VS120COMNTOOLS  Visual Studio 2015  VS15  SET VS100COMNTOOLS  VS140COMNTOOLS    And it s the same as adding a new system variable  See the second ways   Update Sometimes it still doesn t work Check your path ensure that contains VSxxxCOMNTOOLS

User · Answer

you have to check your pip package to be updated to the latest version in your pycharm and then install numpy package   in settings -  project progLangComp -  Project Interpreter there is a table of packages and their current version  just labelled as Version  and their latest version  labelled as Latest   Pip current version number should be the same as latest version  If you see a blue arrow in front of pip  you have to update it to the latest then trying to install numpy or any other packages that you couldn t install  for me it was pandas which I wanted to install   enter image description here

User · Answer

VS 2010 Express is no longer linked to any VS Express pages  that I found   I did find this link to the ISO which I used and it fixed the errors mentioned here   http   download microsoft com download 1 E 5 1E5F1C0A-0D5B-426A-A603-1798B951DDAE VS2010Express1 iso  Note  Also make sure  you have x86 everything  Python   Postgresql  or you ll get other errors  I did not try x64 everything

User · Answer

Tried to install lxml  grab and other extensions  which requires VS 10 0  and get the same issue  I find own way to solve this problem Windows 10 x64  Python 3 4      Install Visual C   2010 Express  download    Do not install Microsoft Visual Studio 2010 Service Pack 1   Remove all the Microsoft Visual C   2010 Redistributable packages from Control Panel Programs and Features  If you don t do those then the install is going to fail with an obscure  Fatal error during installation  error  Install offline version of Windows SDK for Visual Studio 2010  v7 1   download   This is required for 64bit extensions   Windows has builtin mounting for ISOs  Just mount the ISO and run Setup SDKSetup exe instead of setup exe  Create a vcvars64 bat file in C  Program Files  x86  Microsoft Visual Studio 10 0 VC bin amd64 that contains   CALL  C  Program Files Microsoft SDKs Windows v7 1 Bin SetEnv cmd   x64 Find extension on this site  then put them into the python folder  and install  whl extension with pip   python -m pip install extensionname whl Enjoy

User · Answer

Python 3 3 and later now uses the 2010 compiler  To best way to solve the issue is to just install Visual C   Express 2010 for free    Now comes the harder part for 64 bit users and to be honest I just moved to 32 bit but 2010 express doesn t come with a 64 bit compiler  you get a new error  ValueError    path     so you have to install Microsoft SDK 7 1 and follow the directions here to get the 64 bit compiler working with python  Python PIP has issues with path for MS Visual Studio 2010 Express for 64-bit install on Windows 7  It may just be easier for you to use the 32 bit version for now  In addition to getting the compiler working  you can bypass the need to compile many modules by getting the binary wheel file from this locaiton http   www lfd uci edu  gohlke pythonlibs   Just download the  whl file you need  shift   right click the download folder and select  open command window here  and run   pip install module-name whl    I used that method on 64 bit 3 4 3 before I broke down and decided to just get a working compiler for pip compiles modules from source by default  which is why the binary wheel files work and having pip build from source doesn t   People getting this  vcvarsall bat  error on Python 2 7 can instead install  Microsoft Visual C   Compiler for Python 2 7

User · Answer

I was able to fix this on Windows 7 64-bit running Python 3 4 3 by running the set command at a command prompt to determine the existing Visual Studio tools environment variable  in my case it was VS140COMNTOOLS for Visual Studio Community 2015   Then run the following  substituting the variable on the right-hand side if yours has a different name    set VS100COMNTOOLS  VS140COMNTOOLS    This allowed me to install the PyCrypto module that was previously giving me the same error as the OP   For a more permanent solution  add this environment variable to your Windows environment via Control Panel   Edit the system environment variables    though you might need to use the actual path instead of the variable substitution

[python] Error: Microsoft Visual C++ 10.0 is required (Unable to find vcvarsall.bat) when running Python script

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