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