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 and 3.6) 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. pyodbc
  3. pypmc
  4. aiohttp
  5. ceodbc
  6. quantlib
  7. pymc
  8. pyhdf
  9. pydde
  10. pycurl
  11. pycluster
  12. polygon
  13. liblinear
  14. libsvm
  15. thrift
  16. cyassimp
  17. cantera
  18. cyrasterize
  19. crc16
  20. crcmod
  21. bsdiff4
  22. blist
  23. bcolz
  24. bitarray
  25. astropy
  26. assimulo
  27. cffi
  28. pyicu
  29. scandir
  30. scikit-learn
  31. logbook
  32. jpype
  33. flann
  34. winrandom
  35. qt_graph_helpers
  36. pyhook
  37. pyzmq
  38. ad3
  39. pyspharm
  40. pyrxp
  41. pyproj
  42. pylzma
  43. pyaudio
  44. natgrid
  45. noise
  46. nlopt
  47. mkl-service
  48. gr
  49. fastcache
  50. rasterio
  51. gdal
  52. gpy
  53. pycifrw
  54. openbabel
  55. h5py
  56. guiqwt
  57. veusz
  58. wrapt
  59. lazy_object_proxy
  60. pyqwt
  61. pyqt4
  62. pip
  63. psutil
  64. pygit2
  65. jcc
  66. shapely
  67. sima
  68. pycorrfit
  69. pymca
  70. gvar
  71. lsqfit
  72. friture
  73. pycogent
  74. pymol
  75. btrees
  76. zodbpickle
  77. zope.interface
  78. persistent
  79. pyopencl
  80. pycuda
  81. grako
  82. cchardet
  83. lightning
  84. pandas
  85. pywavelets
  86. ets
  87. fonttools
  88. cvxpy
  89. twisted
  90. simplejson
  91. vlfd
  92. minepy
  93. sqlalchemy
  94. pymongo
  95. yt
  96. cython
  97. spacy
  98. cobra
  99. gensim
  100. regex
  101. line_profiler
  102. bottleneck
  103. py-lmdb
  104. spyder
  105. llvmlite
  106. numba
  107. pillow
  108. videocapture
  109. curses
  110. intbitset
  111. javabridge
  112. peewee
  113. pycosat
  114. multidict
  115. pycares
  116. gevent
  117. kiwisolver
  118. bsddb3
  119. apsw
  120. gmpy
  121. mysqlclient
  122. pymssql
  123. mahotas
  124. imread
  125. backports.lzma
  126. mistune
  127. markupsafe
  128. pyyaml
  129. pywin32
  130. greenlet
  131. msgpack
  132. biopython
  133. blosc
  134. pyopengl
  135. pygame
  136. pycairo
  137. scikit-image
  138. netcdf4
  139. lxml
  140. psycopg
  141. pytables
  142. tornado
  143. matplotlib
  144. numexpr
  145. scipy
  146. numpy
  147. dulwich
  148. openimageio
  149. yappi
  150. bokeh
  151. mercurial
  152. sfepy
  153. bioformats
  154. jupyter
  155. zarr
  156. iris
  157. pyflux
  158. fastcluster
  159. pygresql
  160. spectrum
  161. pocketsphinx
  162. meshpy
  163. rpy2
  164. pymcubes
  165. pysqlite
  166. wfastcgi
  167. lp_solve
  168. pyfltk
  169. py_gd
  170. cairocffi
  171. pymvpa
  172. aspell-python
  173. liblas
  174. netifaces
  175. fisx
  176. sasl
  177. xarray
  178. ta-lib
  179. pymetis
  180. cvxcanon
  181. xgboost
  182. scikit-fmm
  183. menpo
  184. coverage
  185. fabio
  186. debug-information-files
  187. xxhash
  188. statsmodels
  189. fiona
  190. pyserial
  191. pyfftw
  192. pyemd
  193. cytoolz
  194. qutip
  195. opencv
  196. setproctitle
  197. blaze
  198. cellprofiler
  199. python-lz4
  200. scs
  201. pyvrml97
  202. cartopy
  203. vigra
  204. pythonnet
  205. libsbml
  206. scikits.audiolab
  207. la
  208. slycot
  209. babel
  210. mod_wsgi
  211. pyrsistent
  212. py-earth
  213. simpleaudio
  214. seqlearn
  215. qimage2ndarray
  216. rtree
  217. datrie
  218. pyldap
  219. imaged11
  220. sympy
  221. pgmagick
  222. libtfr
  223. vtk
  224. hmmlearn
  225. x86cpu
  226. dipy
  227. autopy
  228. wordcloud
  229. reportlab
  230. ffnet
  231. simpleitk
  232. nitime
  233. bazaar
  234. cyordereddict
  235. dynd
  236. genshi
  237. triangle
  238. networkx
  239. pyfits
  240. scikits.odes
  241. python-sundials
  242. python-lzo
  243. ujson
  244. python-ldap
  245. cx_oracle
  246. pythonqwt
  247. glumpy
  248. kivy
  249. pulp
  250. pyamf
  251. kwant
  252. pythonmagick
  253. tinyarray
  254. libxml-python
  255. cellcognition
  256. milk
  257. nipy
  258. scikit-umfpack
  259. simpleparse
  260. iminuit
  261. pyx
  262. pyamg
  263. pymcmc
  264. mpi4py
  265. openexr
  266. pyksvd
  267. blender-mathutils
  268. cvxopt
  269. jsonlib
  270. pyeda
  271. multineat
  272. pyviennacl
  273. blz
  274. python-igraph
  275. pyglet
  276. cx_freeze
  277. pystemmer
  278. llist
  279. cdecimal
  280. bigfloat
  281. entropy
  282. ecos
  283. fann2
  284. python-levenshtein
  285. pyminuit
  286. pycld2
  287. fisher
  288. sparsesvd
  289. zs
  290. rtmidi-python
  291. marisa-trie
  292. mlpy
  293. ode
  294. planar
  295. pybluez
  296. pyephem
  297. scikits.vectorplot
  298. basemap
  299. hddm
  300. heatmap
  301. udunits
  302. twainmodule
  303. python-snappy
  304. boost.python
  305. freeimagedll
  306. pygraphviz
  307. visvis
  308. mxbase
  309. pyvisa
  310. openpiv
  311. jinja2
  312. libpython
  313. pyside
  314. vispy
  315. re2
  316. pymunk
  317. psychopy
  318. pygtk
  319. cgal-bindings
  320. bio_formats
  321. pysfml
  322. pyexiv2
  323. pylibdeconv
  324. iocbio
  325. pymix
  326. umysql
  327. lazyflow
  328. python-cjson
  329. mmlib
  330. pybox2d
  331. cheetah
  332. scikits.timeseries
  333. casuarius
  334. wxpython
  335. ilastik
  336. pyfmi
  337. quickfix
  338. pywcs
  339. scientificpython
  340. vpython
  341. nmoldyn
  342. mmtk
  343. pyalembic
  344. polymode
  345. orange
  346. scikits.delaunay
  347. cld
  348. py-fcm
  349. oursql
  350. zfec
  351. holopy
  352. py2exe
  353. pymutt
  354. carray
  355. llvmpy
  356. cgkit
  357. console
  358. pymedia
  359. scipy-cluster
  360. scikits.scattpy
  361. scikits.samplerate
  362. scikits.ann
  363. pyxml
  364. pytst
  365. enaml
  366. delny
  367. trfit
  368. mysql-python
  369. htseq
  370. pyusb-ftdi
  371. silvercity
  372. steps
  373. pylibtiff
  374. pysparse
  375. fipy
  376. vitables
  377. pyropes
  378. scikits.hydroclimpy
  379. sendkeys
  380. pydbg
  381. atom
  382. docutils
  383. faulthandler
  384. 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