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. pymssql
  3. menpo
  4. astropy
  5. bottleneck
  6. vlfd
  7. gensim
  8. statsmodels
  9. scipy
  10. cffi
  11. cvxpy
  12. regex
  13. psutil
  14. fiona
  15. rasterio
  16. zope.interface
  17. rpy2
  18. lightning
  19. pyserial
  20. bcolz
  21. greenlet
  22. jupyter
  23. biopython
  24. pyfftw
  25. aiohttp
  26. zodb
  27. backports.lzma
  28. openimageio
  29. pocketsphinx
  30. pyemd
  31. cytoolz
  32. mercurial
  33. cvxcanon
  34. matplotlib
  35. numexpr
  36. pymol
  37. shapely
  38. grako
  39. persistent
  40. pycuda
  41. qutip
  42. numpy
  43. pyproj
  44. numba
  45. llvmlite
  46. pillow
  47. pyicu
  48. coverage
  49. opencv
  50. sqlalchemy
  51. zarr
  52. btrees
  53. ad3
  54. pymvpa
  55. setproctitle
  56. sfepy
  57. spacy
  58. bsddb3
  59. minepy
  60. pip
  61. blaze
  62. cellprofiler
  63. pywin32
  64. mkl-service
  65. veusz
  66. peewee
  67. pandas
  68. python-lz4
  69. apsw
  70. scs
  71. fisx
  72. spyder
  73. dulwich
  74. ets
  75. pyvrml97
  76. cartopy
  77. pyopencl
  78. assimulo
  79. ipython
  80. vigra
  81. pytables
  82. h5py
  83. pythonnet
  84. netcdf4
  85. lazy_object_proxy
  86. libsbml
  87. scikits.audiolab
  88. la
  89. twisted
  90. wrapt
  91. iris
  92. scons
  93. slycot
  94. babel
  95. bioformats
  96. blosc
  97. spectrum
  98. cython
  99. mod_wsgi
  100. gevent
  101. pyrsistent
  102. py-earth
  103. gr
  104. pycosat
  105. pyyaml
  106. psycopg
  107. simpleaudio
  108. pycorrfit
  109. pycifrw
  110. pysqlite
  111. cobra
  112. seqlearn
  113. pygresql
  114. qimage2ndarray
  115. lxml
  116. pymongo
  117. rtree
  118. xarray
  119. datrie
  120. pyldap
  121. javabridge
  122. imaged11
  123. scikit-fmm
  124. sympy
  125. cantera
  126. pyopengl
  127. scikit-image
  128. pygit2
  129. pgmagick
  130. libtfr
  131. vtk
  132. hmmlearn
  133. xxhash
  134. x86cpu
  135. mistune
  136. lsqfit
  137. dipy
  138. autopy
  139. wordcloud
  140. scikit-learn
  141. reportlab
  142. pymetis
  143. simplejson
  144. cyassimp
  145. py-lmdb
  146. ffnet
  147. simpleitk
  148. mysqlclient
  149. nitime
  150. bazaar
  151. yt
  152. cyordereddict
  153. pycurl
  154. bokeh
  155. dynd
  156. genshi
  157. triangle
  158. gdal
  159. networkx
  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