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