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-1.10+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. numba
  3. llvmlite
  4. pycuda
  5. regex
  6. pillow
  7. matplotlib
  8. pyicu
  9. rpy2
  10. coverage
  11. menpo
  12. opencv
  13. sqlalchemy
  14. mercurial
  15. zarr
  16. jupyter
  17. btrees
  18. ad3
  19. psutil
  20. pymvpa
  21. setproctitle
  22. sfepy
  23. scipy
  24. spacy
  25. bsddb3
  26. minepy
  27. pip
  28. blaze
  29. cellprofiler
  30. pywin32
  31. mkl-service
  32. numpy
  33. persistent
  34. veusz
  35. peewee
  36. pandas
  37. numexpr
  38. python-lz4
  39. apsw
  40. scs
  41. fisx
  42. cvxpy
  43. spyder
  44. grako
  45. dulwich
  46. ets
  47. vlfd
  48. pyvrml97
  49. cffi
  50. cartopy
  51. cvxcanon
  52. pyopencl
  53. assimulo
  54. pymol
  55. ipython
  56. vigra
  57. pytables
  58. h5py
  59. pythonnet
  60. netcdf4
  61. lazy_object_proxy
  62. libsbml
  63. scikits.audiolab
  64. la
  65. twisted
  66. wrapt
  67. iris
  68. scons
  69. slycot
  70. babel
  71. bioformats
  72. bcolz
  73. blosc
  74. spectrum
  75. cython
  76. mod_wsgi
  77. rasterio
  78. gevent
  79. pyrsistent
  80. py-earth
  81. lightning
  82. gr
  83. pycosat
  84. pyyaml
  85. psycopg
  86. simpleaudio
  87. shapely
  88. pycorrfit
  89. pycifrw
  90. pysqlite
  91. cobra
  92. aiohttp
  93. seqlearn
  94. pygresql
  95. pocketsphinx
  96. qimage2ndarray
  97. lxml
  98. pymongo
  99. rtree
  100. xarray
  101. datrie
  102. pyldap
  103. astropy
  104. javabridge
  105. imaged11
  106. scikit-fmm
  107. sympy
  108. cantera
  109. pyopengl
  110. scikit-image
  111. pygit2
  112. pgmagick
  113. libtfr
  114. vtk
  115. hmmlearn
  116. xxhash
  117. x86cpu
  118. mistune
  119. lsqfit
  120. dipy
  121. autopy
  122. wordcloud
  123. scikit-learn
  124. reportlab
  125. pymetis
  126. simplejson
  127. cyassimp
  128. py-lmdb
  129. ffnet
  130. pymssql
  131. simpleitk
  132. mysqlclient
  133. bottleneck
  134. nitime
  135. bazaar
  136. yt
  137. cyordereddict
  138. pycurl
  139. bokeh
  140. dynd
  141. genshi
  142. triangle
  143. fiona
  144. gdal
  145. networkx
  146. gensim
  147. pyfftw
  148. pyfits
  149. scikits.odes
  150. python-sundials
  151. cytoolz
  152. python-lzo
  153. msgpack
  154. ujson
  155. python-ldap
  156. cx_oracle
  157. guiqwt
  158. pythonqwt
  159. glumpy
  160. logbook
  161. pyzmq
  162. pyserial
  163. pyproj
  164. kivy
  165. scandir
  166. pywavelets
  167. netifaces
  168. pulp
  169. libsvm
  170. flann
  171. debug-information-files
  172. mahotas
  173. pyamf
  174. fabio
  175. openimageio
  176. pyamg
  177. kwant
  178. cchardet
  179. pythonmagick
  180. tinyarray
  181. libxml-python
  182. cellcognition
  183. qt_graph_helpers
  184. imread
  185. milk
  186. nipy
  187. pyspharm
  188. scikit-umfpack
  189. pymc
  190. simpleparse
  191. iminuit
  192. pyx
  193. pyemd
  194. tornado
  195. polygon
  196. cyrasterize
  197. pymcmc
  198. biopython
  199. mpi4py
  200. pyaudio
  201. openbabel
  202. ta-lib
  203. py_gd
  204. openexr
  205. thrift
  206. pyhdf
  207. pyqwt
  208. pyqt4
  209. pyksvd
  210. intbitset
  211. fonttools
  212. blender-mathutils
  213. cvxopt
  214. jsonlib
  215. pyeda
  216. multineat
  217. pyviennacl
  218. blz
  219. python-igraph
  220. pycares
  221. pyglet
  222. cx_freeze
  223. quantlib
  224. pystemmer
  225. llist
  226. gvar
  227. cdecimal
  228. liblas
  229. pygame
  230. bigfloat
  231. ceodbc
  232. yappi
  233. entropy
  234. ecos
  235. crcmod
  236. crc16
  237. curses
  238. fann2
  239. python-levenshtein
  240. pypmc
  241. pyminuit
  242. pydde
  243. pycluster
  244. pycld2
  245. fisher
  246. noise
  247. jpype
  248. pyrxp
  249. sparsesvd
  250. zodbpickle
  251. zope.interface
  252. zs
  253. rtmidi-python
  254. line_profiler
  255. lp_solve
  256. marisa-trie
  257. mlpy
  258. natgrid
  259. nlopt
  260. ode
  261. planar
  262. pybluez
  263. pyephem
  264. pyfltk
  265. pyhook
  266. gmpy
  267. scikits.vectorplot
  268. pyodbc
  269. basemap
  270. bitarray
  271. blist
  272. bsdiff4
  273. fastcluster
  274. greenlet
  275. hddm
  276. heatmap
  277. liblinear
  278. udunits
  279. twainmodule
  280. python-snappy
  281. pylzma
  282. statsmodels
  283. videocapture
  284. markupsafe
  285. pycairo
  286. boost.python
  287. freeimagedll
  288. pygraphviz
  289. visvis
  290. mxbase
  291. pyvisa
  292. openpiv
  293. meshpy
  294. jinja2
  295. backports.lzma
  296. wfastcgi
  297. libpython
  298. pyside
  299. zodb
  300. vispy
  301. re2
  302. pymunk
  303. qutip
  304. friture
  305. psychopy
  306. pygtk
  307. cgal-bindings
  308. bio_formats
  309. jcc
  310. pysfml
  311. pyexiv2
  312. pylibdeconv
  313. iocbio
  314. pymix
  315. umysql
  316. lazyflow
  317. python-cjson
  318. mmlib
  319. pybox2d
  320. cheetah
  321. pycogent
  322. scikits.timeseries
  323. casuarius
  324. wxpython
  325. ilastik
  326. pyfmi
  327. quickfix
  328. pywcs
  329. scientificpython
  330. vpython
  331. nmoldyn
  332. mmtk
  333. pyalembic
  334. polymode
  335. orange
  336. scikits.delaunay
  337. cld
  338. py-fcm
  339. oursql
  340. zfec
  341. holopy
  342. py2exe
  343. pymutt
  344. carray
  345. llvmpy
  346. cgkit
  347. console
  348. pymedia
  349. pymca
  350. scipy-cluster
  351. scikits.scattpy
  352. scikits.samplerate
  353. scikits.ann
  354. pyxml
  355. pytst
  356. enaml
  357. delny
  358. trfit
  359. mysql-python
  360. htseq
  361. aspell-python
  362. pyusb-ftdi
  363. silvercity
  364. steps
  365. pylibtiff
  366. pysparse
  367. fipy
  368. vitables
  369. pyropes
  370. scikits.hydroclimpy
  371. sendkeys
  372. pydbg
  373. kiwisolver
  374. atom
  375. docutils
  376. faulthandler
  377. 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