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. grako
  3. aiohttp
  4. regex
  5. imread
  6. fastcluster
  7. scipy
  8. numpy
  9. cffi
  10. jupyter
  11. pyflux
  12. pygresql
  13. twisted
  14. scikit-learn
  15. zarr
  16. spectrum
  17. pocketsphinx
  18. pytables
  19. matplotlib
  20. pandas
  21. bokeh
  22. meshpy
  23. netcdf4
  24. h5py
  25. gpy
  26. zope.interface
  27. rpy2
  28. blosc
  29. sqlalchemy
  30. mercurial
  31. psutil
  32. pymcubes
  33. shapely
  34. numba
  35. pypmc
  36. cvxpy
  37. pyopengl
  38. pymol
  39. pysqlite
  40. iris
  41. wfastcgi
  42. lp_solve
  43. pyfltk
  44. py_gd
  45. pycifrw
  46. cairocffi
  47. pyyaml
  48. pycairo
  49. pymvpa
  50. markupsafe
  51. psycopg
  52. kiwisolver
  53. aspell-python
  54. biopython
  55. gensim
  56. liblas
  57. peewee
  58. apsw
  59. llvmlite
  60. netifaces
  61. fisx
  62. thrift
  63. sasl
  64. lxml
  65. pyopencl
  66. xarray
  67. ta-lib
  68. line_profiler
  69. pillow
  70. gvar
  71. lsqfit
  72. pymetis
  73. cvxcanon
  74. pyzmq
  75. xgboost
  76. scikit-fmm
  77. menpo
  78. ets
  79. pygit2
  80. gr
  81. msgpack
  82. coverage
  83. pycuda
  84. yt
  85. tornado
  86. gevent
  87. pycares
  88. numexpr
  89. gdal
  90. pygame
  91. fabio
  92. cython
  93. pymongo
  94. lightning
  95. dulwich
  96. mistune
  97. intbitset
  98. gmpy
  99. debug-information-files
  100. xxhash
  101. logbook
  102. pymssql
  103. astropy
  104. bottleneck
  105. vlfd
  106. statsmodels
  107. fiona
  108. rasterio
  109. pyserial
  110. bcolz
  111. greenlet
  112. pyfftw
  113. backports.lzma
  114. openimageio
  115. pyemd
  116. cytoolz
  117. persistent
  118. qutip
  119. pyproj
  120. pyicu
  121. opencv
  122. btrees
  123. ad3
  124. setproctitle
  125. sfepy
  126. spacy
  127. bsddb3
  128. minepy
  129. pip
  130. blaze
  131. cellprofiler
  132. pywin32
  133. mkl-service
  134. veusz
  135. python-lz4
  136. scs
  137. spyder
  138. pyvrml97
  139. cartopy
  140. assimulo
  141. vigra
  142. pythonnet
  143. lazy_object_proxy
  144. libsbml
  145. scikits.audiolab
  146. la
  147. wrapt
  148. scons
  149. slycot
  150. babel
  151. bioformats
  152. mod_wsgi
  153. pyrsistent
  154. py-earth
  155. pycosat
  156. simpleaudio
  157. pycorrfit
  158. cobra
  159. seqlearn
  160. qimage2ndarray
  161. rtree
  162. datrie
  163. pyldap
  164. javabridge
  165. imaged11
  166. sympy
  167. cantera
  168. scikit-image
  169. pgmagick
  170. libtfr
  171. vtk
  172. hmmlearn
  173. x86cpu
  174. dipy
  175. autopy
  176. wordcloud
  177. reportlab
  178. simplejson
  179. cyassimp
  180. py-lmdb
  181. ffnet
  182. simpleitk
  183. mysqlclient
  184. nitime
  185. bazaar
  186. cyordereddict
  187. pycurl
  188. dynd
  189. genshi
  190. triangle
  191. networkx
  192. pyfits
  193. scikits.odes
  194. python-sundials
  195. python-lzo
  196. ujson
  197. python-ldap
  198. cx_oracle
  199. guiqwt
  200. pythonqwt
  201. glumpy
  202. kivy
  203. scandir
  204. pywavelets
  205. pulp
  206. libsvm
  207. flann
  208. mahotas
  209. pyamf
  210. pyamg
  211. kwant
  212. cchardet
  213. pythonmagick
  214. tinyarray
  215. libxml-python
  216. cellcognition
  217. qt_graph_helpers
  218. milk
  219. nipy
  220. pyspharm
  221. scikit-umfpack
  222. pymc
  223. simpleparse
  224. iminuit
  225. pyx
  226. polygon
  227. cyrasterize
  228. pymcmc
  229. mpi4py
  230. pyaudio
  231. openbabel
  232. openexr
  233. pyhdf
  234. pyqwt
  235. pyqt4
  236. pyksvd
  237. fonttools
  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