Installing NumPy and SciPy on 64-bit Windows with Pip

Question

I found out that it s impossible to install NumPy SciPy via installers on Windows 64-bit  that s only possible on 32-bit  Because I need more memory than a 32-bit installation gives me  I need the 64-bit version of everything   I tried to install everything via Pip and most things worked  But when I came to SciPy  it complained about missing a Fortran compiler  So I installed Fortran via MinGW MSYS  But you can t install SciPy right away after that  you need to reinstall NumPy  So I tried that  but now it doesn t work anymore via Pip nor via easy install  Both give these errors    There are a lot of errors about LNK2019 and LNK1120   I get a lot of errors in the range of C  C2065 C2054 C2085 C2143   etc  They belong together I believe  There is no Fortran linker found  but I have no idea how to install that  can t find anything on it  And many more errors which are already out of the visible part of my cmd-windows    The fatal error is about LNK1120      build lib win-amd64-2 7 numpy linalg lapack lite pyd   fatal error LNK1120  7 unresolved externals   error  Setup script exited with error  Command  C  Users me AppData Local Programs Common Microsoft Visual C   for Python 9 0 VC Bin amd64 link exe  DLL  nologo  INCREMENTAL NO  LIBPATH C  BLAS  LIBPATH C  Python27 libs  LIBPATH C  Python27 PCbuild amd64  LIBPATH build temp win-amd64-2 7 lapack lib blas lib  EXPORT initlapack lite build temp win-amd64-2 7 Release numpy linalg lapack litemodule obj  OUT build lib win-amd64-2 7 numpy linalg lapack lite pyd  IMPLIB build temp win-amd64-2 7 Release numpy linalg lapack lite lib  MANIFESTFILE build temp win-amd64-2 7 Release numpy linalg lapack lite pyd manifest  failed with exit status 1120    What is the correct way to install the 64-bit versions NumPy and SciPy on a 64-bit Windows machine  Did I miss anything  Do I need to specify something somewhere  There is no information for Windows on these problems that I can find  only for Linux or Mac OS X  but they don t help me as I can t use their commands

User · Accepted Answer

EDIT  The Numpy project now provides pre-compiled packages in the wheel format  package format enabling compiled code as binary in packages   so the installation is now as easy as with other packages     Numpy  as also some other packages like Scipy  Pandas etc   includes lot s of C-  Cython  and Fortran code that needs to be compiled properly  before you can use it  This is  btw  also the reason why these Python-packages provide such fast Linear Algebra   To get precompiled packages for Windows  have a look at Gohlke s Unofficial Windows Binaries or use a distribution like Winpython  just works  or Anaconda  more complex  which provide an entire preconfigured environment with lots of packages from the scientific python stack

User · Answer

for python 3 6  the following worked for me launch cmd exe as administrator  pip install numpy-1 13 0 mkl-cp36-cp36m-win32 pip install scipy-0 19 1-cp36-cp36m-win32

User · Answer

Intel provides pre-compiled Python modules for free in their  Intel Distribution for Python   The modules are compiled against Intel s MKL  Math Kernel Library  and thus optimized for faster performance  The package includes NumPy  SciPy  scikit-learn  pandas  matplotlib  Numba  tbb  pyDAAL  Jupyter  and others  Find more information and the download link here

User · Answer

If you are on windows   you wouldn t need wheel anyway  You can directly install package by downloading the 32-bit package as win32 from this link  http   www lfd uci edu  gohlke pythonlibs  numpy  and then move that downloaded package to cmd s current directory and open cmd and write following codepip install numpy-1 13 1 mkl-cp36-cp36m-win32 whl then do it same for scipy  For 64-bit you need to install mingw-w64 as it is gcc and compiles numpy and scipy as precompiled status   Currently it works fine with 32-bit So I had opted for win32 package both for numpy mkl and scipy in that link   Hope This works  Give a try

User · Answer

You can now pip install numpy on Windows    Note  this page has only historical relevance  you can now pip-install for windows  Source  https   github com numpy numpy wiki Whats-with-Windows-builds

User · Answer

Package version are very important   I found some stable combination that works on my Windows10 64 bit machine   pip install numpy-1 12 0 mkl-cp36-cp36m-win64 whl pip install scipy-0 18 1-cp36-cp36m-win64 whl pip install matplotlib-2 0 0-cp36-cp36m-win64 whl   Source

User · Answer

Best solution for this is to download and install VCforPython2 7 from https   www microsoft com en-us download details aspx id 44266  Then try pip install numpy

User · Answer

Downloading the binaries for 64-bit from http   www lfd uci edu  gohlke pythonlibs   and installing it directly with pip in this order   pip install numpy-1 12 0 mkl-cp36-cp36m-win64 whl pip install scipy-0 18 1-cp36-cp36m-win64 whl pip install matplotlib-2 0 0-cp36-cp36m-win64 whl   Note that you must place command prompt in the folder where you put the  whl files after downloading them  and you must run it as administrator   worked for me on Windows 10 64-bit now python is up and running

User · Answer

Hey I had the same issue  You can find all the packages in the link below  http   www lfd uci edu  gohlke pythonlibs  scikit-learn And choose the package you need for your version of windows and python     You have to download the file with whl extension  After that  you will copy the file into your python directory then run the following command  py -3 6 -m  pip install matplotlib-2 1 0-cp36-cp36m-win amd64 whl    Here is an example when I wanted to install matplolib for my python 3 6 https   www youtube com watch v MzV4N4XUvYc and this is the video I followed

User · Answer

You can install scipy and numpy using their wheels   First install wheel package if it s already not there     pip install wheel   Just select the package you want from http   www lfd uci edu  gohlke pythonlibs  scipy  Example  if you re running python3 5 32 bit on Windows choose scipy-0 18 1-cp35-cp35m-win amd64 whl then it will automatically download   Then go to the command line and change the directory to the downloads folder and install the above wheel using pip   Example    cd C  Users  user  Downloads pip install scipy-0 18 1-cp35-cp35m-win amd64 whl

User · Answer

Follow these steps   Open CMD as administrator Enter this command   cd   cd   cd Program Files Python38 Scripts Download the package you want and put it in Python38 Scripts folder  pip install packagename whl Done  You can write your python version instead of  quot 38 quot

User · Answer

Installing with pip  You can install the numpy and scipy wheels on Windows with pip in one step if you use the appropriate link from Gohlke s Unofficial Windows Binaries  mentioned by sebix  and run the Windows command prompt as Administrator  For example  in Python 3 5  you would simply use something like this     numpy-1 9 3 mkl for Python 3 5 on Win AMD64 pip3 5 install http   www lfd uci edu  gohlke pythonlibs xmshzit7 numpy-1 9 3 mkl-cp35-none-win amd64 whl    scipy-0 16 1 for Python 3 5 on Win AMD64 pip3 5 install http   www lfd uci edu  gohlke pythonlibs xmshzit7 scipy-0 16 1-cp35-none-win amd64 whl

User · Answer

You can download the needed packages from here and use pip install  Abc whl  from the directory where you have downloaded the file

User · Answer

Look into python wheels to solve your problem  The best part of python wheels is that they let you install C extensions with no compilers  I just installed numpy and scipy using pip in a clean python install and they both worked fine

[python] Installing NumPy and SciPy on 64-bit Windows (with Pip)

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