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 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 6 or newer to install the downloaded .whl files. This page is not a pip package index.

Many binaries depend on NumPy-1.9+MKL and the Microsoft Visual C++ 2008 (x64, x86, and SP1 for CPython 2.6 and 2.7) or Visual C++ 2010 (x64, x86, for CPython 3.3 and 3.4) redistributable packages.

The binaries are compatible with the official CPython distribution on Windows >=6.0. Chances are they don't 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. nibabel
  3. pythonnet
  4. sqlalchemy
  5. regex
  6. spyder
  7. pygame
  8. cvxpy
  9. ipython
  10. pyglet
  11. cython
  12. cobra
  13. pmw
  14. rpy2
  15. libpython
  16. pyzmq
  17. veusz
  18. lsqfit
  19. gvar
  20. psutil
  21. mistune
  22. psycopg
  23. pycuda
  24. xray
  25. mod_wsgi
  26. pyside
  27. pyqt4
  28. pandas
  29. ets
  30. openimageio
  31. nose
  32. cyordereddict
  33. shapely
  34. pycld2
  35. pycparser
  36. numba
  37. cffi
  38. scs
  39. llvmlite
  40. py-lmdb
  41. pgmagick
  42. setuptools
  43. pillow
  44. glumpy
  45. python-igraph
  46. pyeda
  47. astropy
  48. opencv
  49. zodb
  50. wrapt
  51. reportlab
  52. gr
  53. persistent
  54. btrees
  55. virtualenv
  56. pip
  57. mercurial
  58. ta-lib
  59. simplejson
  60. fisher
  61. sfepy
  62. rasterio
  63. pymssql
  64. tornado
  65. heatmap
  66. bsddb3
  67. scipy
  68. numpy
  69. twisted
  70. fann2
  71. debug-information-files
  72. pycorrfit
  73. gevent
  74. cytoolz
  75. vispy
  76. scandir
  77. django
  78. pyemd
  79. vtk
  80. bcolz
  81. re2
  82. bokeh
  83. pyvisa
  84. greenlet
  85. bioformats
  86. apsw
  87. pytz
  88. netcdf4
  89. pymongo
  90. quantlib
  91. libsbml
  92. blender-mathutils
  93. milk
  94. dulwich
  95. pyicu
  96. pytables
  97. blosc
  98. pymunk
  99. multineat
  100. pymol
  101. logbook
  102. pywin32
  103. requests
  104. kivy
  105. pyx
  106. datrie
  107. cartopy
  108. pyodbc
  109. mahotas
  110. certifi
  111. numexpr
  112. blaze
  113. lxml
  114. udunits
  115. pycares
  116. openbabel
  117. pulp
  118. scikits.odes
  119. jpype
  120. scikit-learn
  121. gensim
  122. h5py
  123. slycot
  124. pybluez
  125. zodbpickle
  126. fastcluster
  127. scikit-image
  128. freeimagedll
  129. python-dateutil
  130. noise
  131. triangle
  132. vlfd
  133. fiona
  134. javabridge
  135. dipy
  136. msgpack
  137. nltk
  138. fisx
  139. qutip
  140. pycifrw
  141. pypmc
  142. scikit-fmm
  143. mysqlclient
  144. cvxopt
  145. pyamf
  146. gdal
  147. ffnet
  148. matplotlib
  149. pyamg
  150. pyopengl
  151. pyopencl
  152. friture
  153. psychopy
  154. ecos
  155. pymetis
  156. bottleneck
  157. setproctitle
  158. pygtk
  159. hddm
  160. kwant
  161. openpiv
  162. pims
  163. trackpy
  164. wfastcgi
  165. jinja2
  166. pygments
  167. cgal-bindings
  168. simpleitk
  169. bio_formats
  170. jcc
  171. pysfml
  172. pyexiv2
  173. mpi4py
  174. pylibdeconv
  175. iocbio
  176. liblas
  177. bazaar
  178. iris
  179. mako
  180. yappi
  181. lmfit
  182. libtfr
  183. pymix
  184. umysql
  185. lazyflow
  186. pysparse
  187. pymvpa
  188. iminuit
  189. ode
  190. python-levenshtein
  191. python-cjson
  192. pyfltk
  193. pyrxp
  194. mmlib
  195. pybox2d
  196. autopy
  197. openglcontext
  198. pyvrml97
  199. cheetah
  200. pycogent
  201. blz
  202. pygraphviz
  203. cyassimp
  204. statsmodels
  205. cellcognition
  206. backports.lzma
  207. scikits.timeseries
  208. yt
  209. casuarius
  210. boost.python
  211. gmpy
  212. wxpython
  213. python-ldap
  214. ilastik
  215. pyfmi
  216. quickfix
  217. libxml-python
  218. pywcs
  219. pyqwt
  220. python-sundials
  221. pycurl
  222. scientificpython
  223. vpython
  224. nmoldyn
  225. mmtk
  226. fonttools
  227. pyalembic
  228. python-snappy
  229. python-lzo
  230. polymode
  231. orange
  232. curses
  233. scikits.delaunay
  234. six
  235. cld
  236. py-fcm
  237. oursql
  238. pywavelets
  239. zfec
  240. intbitset
  241. holopy
  242. jsonlib
  243. py2exe
  244. python-lz4
  245. pymutt
  246. vigra
  247. genshi
  248. carray
  249. pyviennacl
  250. lp_solve
  251. llist
  252. line_profiler
  253. llvmpy
  254. cgkit
  255. epydoc
  256. pyproj
  257. zs
  258. console
  259. la
  260. libsvm
  261. liblinear
  262. pymedia
  263. pymca
  264. cellprofiler
  265. marisa-trie
  266. nipype
  267. natgrid
  268. entropy
  269. ujson
  270. sparsesvd
  271. scons
  272. scitools
  273. scipy-cluster
  274. scikits.umfpack
  275. scikits.scattpy
  276. scikits.samplerate
  277. scikits.ann
  278. scikits.audiolab
  279. crcmod
  280. zope.interface
  281. pythonmagick
  282. visvis
  283. qimage2ndarray
  284. pyxml
  285. pytst
  286. enaml
  287. delny
  288. cx_freeze
  289. trfit
  290. rtree
  291. rtmidi-python
  292. mysql-python
  293. htseq
  294. ceodbc
  295. aspell-python
  296. assimulo
  297. pyusb-ftdi
  298. thrift
  299. silvercity
  300. steps
  301. pycluster
  302. pylibtiff
  303. polygon
  304. nlopt
  305. nitime
  306. mxbase
  307. pyhook
  308. pyfits
  309. pydde
  310. pyephem
  311. fipy
  312. vitables
  313. guiqwt
  314. pyspharm
  315. pyminuit
  316. pyropes
  317. pylzma
  318. planar
  319. pysqlite
  320. pystemmer
  321. scikits.hydroclimpy
  322. scikits.vectorplot
  323. tinyarray
  324. babel
  325. pymc
  326. pyhdf
  327. sendkeys
  328. cdecimal
  329. coverage
  330. pyfftw
  331. meshpy
  332. dynd
  333. pyserial
  334. bigfloat
  335. bitarray
  336. blist
  337. crc16
  338. imread
  339. mlpy
  340. minepy
  341. twainmodule
  342. pyaudio
  343. pydbg
  344. flask
  345. videocapture
  346. kiwisolver
  347. atom
  348. basemap
  349. docutils
  350. bsdiff4
  351. markupsafe
  352. networkx
  353. pycosat
  354. pyyaml
  355. pytools
  356. biopython
  357. patsy
  358. faulthandler
  359. sympy
  360. pygit2
  361. pycairo
  362. pyparsing
  363. 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. Jxrlib
  55. Kerberos
  56. KissFFT
  57. Klib
  58. LAME
  59. LAPACK
  60. LEMON
  61. lib3ds
  62. libcurl
  63. libevent
  64. Libffi
  65. libgit2
  66. Libidn
  67. libjpeg
  68. libjpeg-turbo
  69. LIBLINEAR
  70. liblzma
  71. libmng
  72. libpng
  73. LibRaw
  74. libsamplerate
  75. libSBML
  76. libsodium
  77. libspatialindex
  78. LIBSVM
  79. LibTIFF
  80. libusb
  81. Libxml2
  82. Libxslt
  83. LibYAML
  84. linInChI
  85. Little CMS
  86. LLVM
  87. lp_solve
  88. lz4
  89. LZMA
  90. LZO
  91. Mesa
  92. METSI
  93. Minizip
  94. MPC
  95. MPEG_Encode
  96. MPFR
  97. MPIR
  98. MUMPS
  99. Muparser
  100. MySQL Connector/C
  101. NetCDF
  102. Netpbm
  103. ODE
  104. Ogg
  105. OpenAL
  106. OpenBabel
  107. OpenColorIO
  108. OpenCV
  109. OpenEXR
  110. OpenImageIO
  111. OpenJPEG
  112. OpenLDAP
  113. OpenMPI
  114. OpenNI
  115. OpenPGM
  116. OpenSSL
  117. PDCurses
  118. Pixman
  119. PortAudio
  120. PortMidi
  121. PROJ.4
  122. Ptex
  123. Pthreads-w32
  124. Qhull
  125. Qt
  126. QuickFIX
  127. RE2
  128. RtMidi
  129. SASL
  130. SDL
  131. SDL_gfx
  132. SDL_image
  133. SDL_mixer
  134. SDL_ttf
  135. SFML2
  136. Silo
  137. SLICOT
  138. Smpeg
  139. Snappy
  140. sparsehash
  141. SPHEREPACK
  142. SQLite
  143. SuiteSparse
  144. SUNDIALS
  145. SuperLU
  146. SZip
  147. TCL/TK
  148. UDUNITS
  149. UMFPACK
  150. ViennaCL
  151. Vorbis
  152. VTK
  153. WebP
  154. wxWidgets
  155. Xerces
  156. YAML
  157. ZeroMQ
  158. 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 2013
  10. Intel Threading Building Blocks
  11. libsndfile
  12. MATLAB(tm)
  13. Microsoft DirectX SDK (June 2010)
  14. Microsoft MPI v5
  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 Java SE Development Kit 8
  23. PostgreSQL Server
  24. Python
  25. R
  1. Compilers:
  2. Clang
  3. Intel Composer XE 2013 SP1
  4. Lazarus
  5. Microsoft Platform SDK for Windows Server 2003 R2
  6. Microsoft Visual C++ 2008 Feature Pack
  7. Microsoft Visual C++ Compiler for Python 2.7
  8. Microsoft Visual Studio .NET 2003
  9. Microsoft Visual Studio 2008 Pro
  10. Microsoft Visual Studio 2010 Pro
  11. Microsoft Visual Studio 2013 Pro
  12. MinGW
  13. MinGW-w64
  14. Mingw-w64-for-python
  15. NASM
  16. Rtools
  17. Yasm
  1. Build tools:
  2. ActivePerl
  3. Ant
  4. Bazaar
  5. Bento
  6. BJam
  7. CMake
  8. CVS
  9. Cygwin
  10. Cython
  11. deoxygen
  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 8.1
  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