python - visual - Running Cython in Windows x64-fatal error C1083: Cannot open include file: 'basetsd.h': No such file or directory

visual studio 2010 error c1083 cannot open include file (3)

I have been trying to install Cython for Python 2.7 on my Window 7 system. In particular, I prefer everything in 64 bits. (In case you wonder, I need Cython because Cython is one of the components I need for another package for some specialized numerical analysis. And x64 is potentially an advantage for storage of large data sets.)

So I downloaded the x64 Python 2.7 from the official website. Got Cython from Christoph Gohlke. The amd64 version for Python 2.7 of course. Before I installed, I added Python 2.7 into the registry with the .reg file found in Joe DF's answer here. Afterwards, I installed the Visual C++ compiler from here (I don't think it works) and here (but this one should). At this point, I have in my C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\bin directory all of vcvars32.bat, vcvars64.bat, vcvars86_amd64.bat, vcvarsx86_ia64.bat. I ran vcvars64.bat and there was no error message.

Subsequently, I followed this page to create a "hello world" test file.

Then, I got this error.

...\Tests>python build_ext --inplace
running build_ext
building 'hello' extension
error: Unable to find vcvarsall.bat

So I thought to myself: Well, Cython can't find that file because it does not exist. (I searched my whole harddrive for it.) So I copied vcvars64.bat from ...\VC\bin to \VC and changed the name to vcvarsall.bat. Now vcvarsall error is gone. And ... naturally, a new error emerges.

...\Tests>python build_ext --inplace
running build_ext
building 'hello' extension
C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\amd64\cl.exe /c /nolog
o /Ox /MD /W3 /GS- /DNDEBUG -IC:\Python27\include -IC:\Python27\PC /Tchello.c /F
C:\Python27\include\pyconfig.h(227) : fatal error C1083: Cannot open include fil
e: 'basetsd.h': No such file or directory
error: command '"C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\amd64
\cl.exe"' failed with exit status 2

Now I have no idea how to proceed. What should I do? Your help is much appreciated.

(For clarity, I did try setting the compiler to Mingw32. But there are other errors. I am focusing on getting VC to work for now.)

EDIT: I tried using the SDK build environment CMD following the instructions on this page. I received the same error.

For suggestion, you can try it for build cython 64 bit with

I'm using Anaconda for python distribution, Microsoft's Windopws SDK 7, and MSVC 12.0.

Firstly, I make library for my cuda function, Second, I run python build_ext -i for make temp folder (you wil get error), then compile Makefile below,

Mostly, I get this from when it is compile 32 bit app, then change it for compile 64 bit.


CL_EXE      = "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\bin\amd64\cl.exe"
LINK_EXE    = "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\bin\amd64\link.exe"

CL_FLAGS    = /c /nologo /Ox /MD /W3 /GS- /DNDEBUG /O2 /fp:fast
CL_INC      = -I. -I"C:\Program Files\Microsoft SDKs\Windows\v7.1\Include" \
            -I"C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include" -IC:\Users\name\Anaconda2\envs\py27\Lib\site-packages\numpy\core\include -IC:\Users\name\Anaconda2\envs\py27\include -IC:\Users\name\Anaconda2\envs\py27\PC 

LINK_LIBPATH    = "/LIBPATH:C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v7.5\lib\x64" \
                    /LIBPATH:C:\Users\name\Anaconda2\envs\py27\libs \
                    /LIBPATH:C:\Users\name\Anaconda2\envs\py27\PCbuild\amd64 \
                    /LIBPATH:C:\Users\name\Anaconda2\envs\py27\PC\VS9.0\amd64 \
                    "/LIBPATH:C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\lib\amd64" \
                    "/LIBPATH:C:\Program Files\Microsoft SDKs\Windows\v7.1\Lib\x64"
LINK_LIB        = cuda_multiply4D.lib cudart.lib MSVCRT.lib kernel32.lib
LINK_EXPORT     = /EXPORT:initmy_cuda
LINK_OBJ        = build\\Release\my_cuda.obj
LINK_OUT        = "/OUT:E:\my_cuda.pyd"
LINK_OTHER_CONF = /IMPLIB:build\\Release\my_cuda.lib /MANIFESTFILE:build\\Release\my_cuda.pyd.manifest 

    $(CL_EXE) $(CL_FLAGS) $(CL_INC) /Tcmy_cuda.c /Fobuild\\Release\my_cuda.obj


  • MSVCRT.lib kernel32.lib are optional,
  • /EXPORT:initmy_cuda is mandatory. Its format init%yourfilename_WO_Ext%
  • "/OUT:E:\my_cuda.pyd" for determine your output location, its filename, and its extension.

For those with Windows 10, download the SDK from here to fix the header file basestd.h.

I downloaded the .exe, installed and worked great. SDK was ~2.3GB.

Note: For those like me with 64-bit systems who got an additional error:

`LINK : fatal error LNK1158: cannot run 'rc.exe'
    error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VC\\BIN\\x86_amd64\\link.exe' failed with exit status 1158

There is a great answer here which solves the problem by placing the rc.exe file in the correct folder for your system.

In case anyone is currently (2017) facing same error with visual C++ 2015 tools, launch setup again and also select windows 8.1 / 10 SDK depending upon your OS. This will fix basestd.h error.

If it is still not working, try launching build tools from: C:\Program Files (x86)\Microsoft Visual C++ Build Tools.

Another alternative would be, just install anaconda 2 or 3 (64 bit if also you don't want memory errors). It contains all the important packages prebuilt: sklearn, matplotlib, scipy, numpy, pandas and even web development frameworks such as flask.