Unofficial Windows Binaries for Python Extension Packages

by Christoph Gohlke, Laboratory for Fluorescence Dynamics, University of California, Irvine.

This page provides 32- and 64-bit Windows binaries of many scientific open-source extension packages for the official CPython distribution of the Python programming language.

The files are unofficial (meaning: informal, unrecognized, personal, unsupported, no warranty, no liability, provided "as is") and made available for testing and evaluation purposes.

If downloads fail reload this page, enable JavaScript, disable download managers, disable proxies, clear cache, and use Firefox. Please only download files manually as needed.

Most binaries are built from source code found on PyPI or in the projects public revision control systems. Source code changes, if any, have been submitted to the project maintainers or are included in the packages.

Refer to the documentation of the individual packages for license restrictions and dependencies.

Use pip version 8 or newer to install the downloaded .whl files. This page is not a pip package index.

Many binaries depend on numpy-1.11+mkl and the Microsoft Visual C++ 2008 (x64, x86, and SP1 for CPython 2.6 and 2.7), Visual C++ 2010 (x64, x86, for CPython 3.3 and 3.4), or the Visual C++ 2015 (x64 and x86 for CPython 3.5) redistributable packages.

Install numpy+mkl before other packages that depend on it.

The binaries are compatible with the official CPython distribution on Windows >=6.0. Chances are they do not work with custom Python distributions included with Blender, Maya, ArcGIS, OSGeo4W, ABAQUS, Cygwin, Pythonxy, Canopy, EPD, Anaconda, WinPython etc. Many binaries are not compatible with Windows XP or Wine.

The packages are ZIP or 7z files, which allows for manual or scripted installation or repackaging of the content.

The files are provided "as is" without warranty or support of any kind. The entire risk as to the quality and performance is with you.


  1. Index by date:
  2. spyder
  3. grako
  4. jupyter
  5. scikit-learn
  6. numpy
  7. zarr
  8. fonttools
  9. iris
  10. gr
  11. openbabel
  12. pyflux
  13. aiohttp
  14. regex
  15. imread
  16. fastcluster
  17. scipy
  18. cffi
  19. pygresql
  20. twisted
  21. spectrum
  22. pocketsphinx
  23. pytables
  24. matplotlib
  25. pandas
  26. bokeh
  27. meshpy
  28. netcdf4
  29. h5py
  30. gpy
  31. zope.interface
  32. rpy2
  33. blosc
  34. sqlalchemy
  35. mercurial
  36. psutil
  37. pymcubes
  38. shapely
  39. numba
  40. pypmc
  41. cvxpy
  42. pyopengl
  43. pymol
  44. pysqlite
  45. wfastcgi
  46. lp_solve
  47. pyfltk
  48. py_gd
  49. pycifrw
  50. cairocffi
  51. pyyaml
  52. pycairo
  53. pymvpa
  54. markupsafe
  55. psycopg
  56. kiwisolver
  57. aspell-python
  58. biopython
  59. gensim
  60. liblas
  61. peewee
  62. apsw
  63. llvmlite
  64. netifaces
  65. fisx
  66. thrift
  67. sasl
  68. lxml
  69. pyopencl
  70. xarray
  71. ta-lib
  72. line_profiler
  73. pillow
  74. gvar
  75. lsqfit
  76. pymetis
  77. cvxcanon
  78. pyzmq
  79. xgboost
  80. scikit-fmm
  81. menpo
  82. ets
  83. pygit2
  84. msgpack
  85. coverage
  86. pycuda
  87. yt
  88. tornado
  89. gevent
  90. pycares
  91. numexpr
  92. gdal
  93. pygame
  94. fabio
  95. cython
  96. pymongo
  97. lightning
  98. dulwich
  99. mistune
  100. intbitset
  101. gmpy
  102. debug-information-files
  103. xxhash
  104. logbook
  105. pymssql
  106. astropy
  107. bottleneck
  108. vlfd
  109. statsmodels
  110. fiona
  111. rasterio
  112. pyserial
  113. bcolz
  114. greenlet
  115. pyfftw
  116. backports.lzma
  117. openimageio
  118. pyemd
  119. cytoolz
  120. persistent
  121. qutip
  122. pyproj
  123. pyicu
  124. opencv
  125. btrees
  126. ad3
  127. setproctitle
  128. sfepy
  129. spacy
  130. bsddb3
  131. minepy
  132. pip
  133. blaze
  134. cellprofiler
  135. pywin32
  136. mkl-service
  137. veusz
  138. python-lz4
  139. scs
  140. pyvrml97
  141. cartopy
  142. assimulo
  143. vigra
  144. pythonnet
  145. lazy_object_proxy
  146. libsbml
  147. scikits.audiolab
  148. la
  149. wrapt
  150. scons
  151. slycot
  152. babel
  153. bioformats
  154. mod_wsgi
  155. pyrsistent
  156. py-earth
  157. pycosat
  158. simpleaudio
  159. pycorrfit
  160. cobra
  161. seqlearn
  162. qimage2ndarray
  163. rtree
  164. datrie
  165. pyldap
  166. javabridge
  167. imaged11
  168. sympy
  169. cantera
  170. scikit-image
  171. pgmagick
  172. libtfr
  173. vtk
  174. hmmlearn
  175. x86cpu
  176. dipy
  177. autopy
  178. wordcloud
  179. reportlab
  180. simplejson
  181. cyassimp
  182. py-lmdb
  183. ffnet
  184. simpleitk
  185. mysqlclient
  186. nitime
  187. bazaar
  188. cyordereddict
  189. pycurl
  190. dynd
  191. genshi
  192. triangle
  193. networkx
  194. pyfits
  195. scikits.odes
  196. python-sundials
  197. python-lzo
  198. ujson
  199. python-ldap
  200. cx_oracle
  201. guiqwt
  202. pythonqwt
  203. glumpy
  204. kivy
  205. scandir
  206. pywavelets
  207. pulp
  208. libsvm
  209. flann
  210. mahotas
  211. pyamf
  212. pyamg
  213. kwant
  214. cchardet
  215. pythonmagick
  216. tinyarray
  217. libxml-python
  218. cellcognition
  219. qt_graph_helpers
  220. milk
  221. nipy
  222. pyspharm
  223. scikit-umfpack
  224. pymc
  225. simpleparse
  226. iminuit
  227. pyx
  228. polygon
  229. cyrasterize
  230. pymcmc
  231. mpi4py
  232. pyaudio
  233. openexr
  234. pyhdf
  235. pyqwt
  236. pyqt4
  237. pyksvd
  238. blender-mathutils
  239. cvxopt
  240. jsonlib
  241. pyeda
  242. multineat
  243. pyviennacl
  244. blz
  245. python-igraph
  246. pyglet
  247. cx_freeze
  248. quantlib
  249. pystemmer
  250. llist
  251. cdecimal
  252. bigfloat
  253. ceodbc
  254. yappi
  255. entropy
  256. ecos
  257. crcmod
  258. crc16
  259. curses
  260. fann2
  261. python-levenshtein
  262. pyminuit
  263. pydde
  264. pycluster
  265. pycld2
  266. fisher
  267. noise
  268. jpype
  269. pyrxp
  270. sparsesvd
  271. zodbpickle
  272. zs
  273. rtmidi-python
  274. marisa-trie
  275. mlpy
  276. natgrid
  277. nlopt
  278. ode
  279. planar
  280. pybluez
  281. pyephem
  282. pyhook
  283. scikits.vectorplot
  284. pyodbc
  285. basemap
  286. bitarray
  287. blist
  288. bsdiff4
  289. hddm
  290. heatmap
  291. liblinear
  292. udunits
  293. twainmodule
  294. python-snappy
  295. pylzma
  296. videocapture
  297. boost.python
  298. freeimagedll
  299. pygraphviz
  300. visvis
  301. mxbase
  302. pyvisa
  303. openpiv
  304. jinja2
  305. libpython
  306. pyside
  307. vispy
  308. re2
  309. pymunk
  310. friture
  311. psychopy
  312. pygtk
  313. cgal-bindings
  314. bio_formats
  315. jcc
  316. pysfml
  317. pyexiv2
  318. pylibdeconv
  319. iocbio
  320. pymix
  321. umysql
  322. lazyflow
  323. python-cjson
  324. mmlib
  325. pybox2d
  326. cheetah
  327. pycogent
  328. scikits.timeseries
  329. casuarius
  330. wxpython
  331. ilastik
  332. pyfmi
  333. quickfix
  334. pywcs
  335. scientificpython
  336. vpython
  337. nmoldyn
  338. mmtk
  339. pyalembic
  340. polymode
  341. orange
  342. scikits.delaunay
  343. cld
  344. py-fcm
  345. oursql
  346. zfec
  347. holopy
  348. py2exe
  349. pymutt
  350. carray
  351. llvmpy
  352. cgkit
  353. console
  354. pymedia
  355. pymca
  356. scipy-cluster
  357. scikits.scattpy
  358. scikits.samplerate
  359. scikits.ann
  360. pyxml
  361. pytst
  362. enaml
  363. delny
  364. trfit
  365. mysql-python
  366. htseq
  367. pyusb-ftdi
  368. silvercity
  369. steps
  370. pylibtiff
  371. pysparse
  372. fipy
  373. vitables
  374. pyropes
  375. scikits.hydroclimpy
  376. sendkeys
  377. pydbg
  378. atom
  379. docutils
  380. faulthandler
  381. pyisapie


Other useful packages and applications not currently available on this page


Build Environment

  1. Libraries (built from source):
  2. Alembic
  3. AMD
  4. ANGLE
  5. ANN
  6. ASIO
  7. Aspell
  8. Assimp
  9. AVbin
  10. BerkeleyDB
  11. BLAS
  12. Blosc
  13. Boost
  14. Box2D
  15. bsd-xdr
  16. bzip2
  17. C-ares
  18. Cairo
  19. Cassowary
  20. CFitsIO
  21. CGAL
  22. Chipmunk2D
  23. EasyBMP
  24. Eigen
  25. Expat
  26. FFTW
  27. FLAC
  28. FLANN
  29. FLTK
  30. FMILibrary
  31. Freeglut
  32. FreeImage
  33. FreeTDS
  34. FreeType
  35. FreeXL
  36. GDAL
  37. GEOS
  38. GeoTIFF
  39. GLEW
  40. GLFW
  41. GLPK
  42. GLUT
  43. GraphicsMagick
  44. Graphviz
  45. GSL
  46. HDF4
  47. HDF5
  48. iconv
  49. ICU
  50. igraph
  51. ImageMagick
  52. ITK
  53. JasPer
  54. jsoncpp
  55. Jxrlib
  56. Kerberos
  57. KissFFT
  58. Klib
  59. LAME
  60. LAPACK
  61. LEMON
  62. lib3ds
  63. libcurl
  64. libevent
  65. Libffi
  66. libGD
  67. libgit2
  68. Libidn
  69. libInChI
  70. libjpeg
  71. libjpeg-turbo
  72. LibKML
  73. LIBLINEAR
  74. liblzma
  75. libmng
  76. libpng
  77. LibRaw
  78. libsamplerate
  79. libSBML
  80. libsodium
  81. libspatialindex
  82. libssh2
  83. LIBSVM
  84. LibTIFF
  85. libusb
  86. Libxml2
  87. Libxslt
  88. LibYAML
  89. Little CMS
  90. LLVM
  91. lp_solve
  92. lz4
  93. LZMA
  94. LZO
  95. Mesa
  96. METIS
  97. Minizip
  98. MPC
  99. MPEG_Encode
  100. MPFR
  101. MPIR
  102. MUMPS
  103. Muparser
  104. MySQL Connector/C
  105. NetCDF
  106. Netpbm
  107. ODE
  108. Ogg
  109. onig
  110. OpenAL
  111. OpenBabel
  112. OpenColorIO
  113. OpenCV
  114. OpenEXR
  115. OpenImageIO
  116. OpenJPEG
  117. OpenLDAP
  118. OpenMPI
  119. OpenNI
  120. OpenPGM
  121. OpenSSL
  122. PDCurses
  123. Pixman
  124. PortAudio
  125. PortMidi
  126. PostgreSQL
  127. PROJ.4
  128. Ptex
  129. Pthreads-w32
  130. Qhull
  131. Qt
  132. QuickFIX
  133. RE2
  134. RtMidi
  135. SASL
  136. SDL
  137. SDL_gfx
  138. SDL_image
  139. SDL_mixer
  140. SDL_ttf
  141. SFML2
  142. Silo
  143. SLICOT
  144. Smpeg
  145. Snappy
  146. sparsehash
  147. SPHEREPACK
  148. SQLite
  149. SuiteSparse
  150. SUNDIALS
  151. SuperLU
  152. SZip
  153. TCL/TK
  154. UDUNITS
  155. UMFPACK
  156. Uriparser
  157. ViennaCL
  158. Vorbis
  159. VTK
  160. WebP
  161. wxWidgets
  162. Xerces
  163. Xmlsec
  164. YAML
  165. ZeroMQ
  166. zlib
  1. SDKs and libraries (prebuilt):
  2. Apache HTTP Server
  3. ASIO SDK
  4. Bio-Formats
  5. ESRI File Geodatabase API
  6. GTK2
  7. Intel Integrated Performance Primitives
  8. Intel Math Kernel Library
  9. Intel SDK for OpenCL Applications
  10. Intel Threading Building Blocks
  11. libsndfile
  12. MATLAB(tm)
  13. Microsoft DirectX SDK (June 2010)
  14. Microsoft MPI v6
  15. Microsoft Platform SDK for Windows Server 2003 R2
  16. Microsoft SQL Server
  17. Microsoft Windows SDK v6.1 Windows Server 2008 and .NET Framework 3.5
  18. Microsoft Windows SDK v7.0 for Windows 7 and .NET Framework 3.5 Service Pack 1
  19. Microsoft Windows SDK v7.1 for Windows 7 and .NET Framework 4
  20. NVidia CG Toolkit
  21. NVidia CUDA Toolkit
  22. Oracle Instant Client
  23. Oracle Java SE Development Kit
  24. Python
  25. R
  1. Compilers:
  2. Clang
  3. Intel Composer XE 2013 SP1
  4. Intel Parallel Studio XE 2016 Composer
  5. Lazarus
  6. Microsoft Platform SDK for Windows Server 2003 R2
  7. Microsoft Visual C++ 2008 Feature Pack
  8. Microsoft Visual C++ Compiler for Python 2.7
  9. Microsoft Visual Studio .NET 2003
  10. Microsoft Visual Studio 2008 Pro
  11. Microsoft Visual Studio 2010 Pro
  12. Microsoft Visual Studio 2015 Community
  13. MinGW
  14. MinGW-w64
  15. Mingw-w64-for-python
  16. NASM
  17. Rtools
  18. Yasm
  1. Build tools:
  2. ActivePerl
  3. Ant
  4. Bazaar
  5. Bento
  6. BJam
  7. CMake
  8. CVS
  9. Cygwin
  10. Cython
  11. doxygen
  12. Epydoc
  13. Git
  14. JCC
  15. Jom
  16. M4
  17. Mercurial
  18. MSYS
  19. MSYS2
  20. Node.js
  21. Nose
  22. NSIS
  23. PyPy
  24. Python
  25. SCons
  26. SIP
  27. Sphinx
  28. Subversion
  29. SWIG
  30. Waf
  1. Other software:
  2. 7-Zip
  3. Avconv
  4. com0com
  5. Dependency Walker
  6. FFmpeg
  7. GhostScript
  8. GnuWin32
  9. Info-ZIP
  10. Inkscape
  11. InpOutx64
  12. MEncoder
  13. MiKTeX
  14. Notepad++
  15. Pandoc
  16. PTVS
  17. Redis
  18. Spyder
  19. Sysinternals Suite
  20. Ubuntu
  21. Windows 10
  22. WingIDE
  23. WinMerge
  1. Other CPython distributions:
  2. ActivePython
  3. Anaconda
  4. Python(x,y)
  5. Pyzo
  6. WinPython

Christoph Gohlke, Laboratory for Fluorescence Dynamics