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. matplotlib
  3. pymol
  4. shapely
  5. grako
  6. persistent
  7. pyserial
  8. pycuda
  9. qutip
  10. numpy
  11. pyproj
  12. numba
  13. llvmlite
  14. regex
  15. pillow
  16. pyicu
  17. rpy2
  18. coverage
  19. menpo
  20. opencv
  21. sqlalchemy
  22. mercurial
  23. zarr
  24. jupyter
  25. btrees
  26. ad3
  27. psutil
  28. pymvpa
  29. setproctitle
  30. sfepy
  31. scipy
  32. spacy
  33. bsddb3
  34. minepy
  35. pip
  36. blaze
  37. cellprofiler
  38. pywin32
  39. mkl-service
  40. veusz
  41. peewee
  42. pandas
  43. numexpr
  44. python-lz4
  45. apsw
  46. scs
  47. fisx
  48. cvxpy
  49. spyder
  50. dulwich
  51. ets
  52. vlfd
  53. pyvrml97
  54. cffi
  55. cartopy
  56. cvxcanon
  57. pyopencl
  58. assimulo
  59. ipython
  60. vigra
  61. pytables
  62. h5py
  63. pythonnet
  64. netcdf4
  65. lazy_object_proxy
  66. libsbml
  67. scikits.audiolab
  68. la
  69. twisted
  70. wrapt
  71. iris
  72. scons
  73. slycot
  74. babel
  75. bioformats
  76. bcolz
  77. blosc
  78. spectrum
  79. cython
  80. mod_wsgi
  81. rasterio
  82. gevent
  83. pyrsistent
  84. py-earth
  85. lightning
  86. gr
  87. pycosat
  88. pyyaml
  89. psycopg
  90. simpleaudio
  91. pycorrfit
  92. pycifrw
  93. pysqlite
  94. cobra
  95. aiohttp
  96. seqlearn
  97. pygresql
  98. pocketsphinx
  99. qimage2ndarray
  100. lxml
  101. pymongo
  102. rtree
  103. xarray
  104. datrie
  105. pyldap
  106. astropy
  107. javabridge
  108. imaged11
  109. scikit-fmm
  110. sympy
  111. cantera
  112. pyopengl
  113. scikit-image
  114. pygit2
  115. pgmagick
  116. libtfr
  117. vtk
  118. hmmlearn
  119. xxhash
  120. x86cpu
  121. mistune
  122. lsqfit
  123. dipy
  124. autopy
  125. wordcloud
  126. scikit-learn
  127. reportlab
  128. pymetis
  129. simplejson
  130. cyassimp
  131. py-lmdb
  132. ffnet
  133. pymssql
  134. simpleitk
  135. mysqlclient
  136. bottleneck
  137. nitime
  138. bazaar
  139. yt
  140. cyordereddict
  141. pycurl
  142. bokeh
  143. dynd
  144. genshi
  145. triangle
  146. fiona
  147. gdal
  148. networkx
  149. gensim
  150. pyfftw
  151. pyfits
  152. scikits.odes
  153. python-sundials
  154. cytoolz
  155. python-lzo
  156. msgpack
  157. ujson
  158. python-ldap
  159. cx_oracle
  160. guiqwt
  161. pythonqwt
  162. glumpy
  163. logbook
  164. pyzmq
  165. kivy
  166. scandir
  167. pywavelets
  168. netifaces
  169. pulp
  170. libsvm
  171. flann
  172. debug-information-files
  173. mahotas
  174. pyamf
  175. fabio
  176. openimageio
  177. pyamg
  178. kwant
  179. cchardet
  180. pythonmagick
  181. tinyarray
  182. libxml-python
  183. cellcognition
  184. qt_graph_helpers
  185. imread
  186. milk
  187. nipy
  188. pyspharm
  189. scikit-umfpack
  190. pymc
  191. simpleparse
  192. iminuit
  193. pyx
  194. pyemd
  195. tornado
  196. polygon
  197. cyrasterize
  198. pymcmc
  199. biopython
  200. mpi4py
  201. pyaudio
  202. openbabel
  203. ta-lib
  204. py_gd
  205. openexr
  206. thrift
  207. pyhdf
  208. pyqwt
  209. pyqt4
  210. pyksvd
  211. intbitset
  212. fonttools
  213. blender-mathutils
  214. cvxopt
  215. jsonlib
  216. pyeda
  217. multineat
  218. pyviennacl
  219. blz
  220. python-igraph
  221. pycares
  222. pyglet
  223. cx_freeze
  224. quantlib
  225. pystemmer
  226. llist
  227. gvar
  228. cdecimal
  229. liblas
  230. pygame
  231. bigfloat
  232. ceodbc
  233. yappi
  234. entropy
  235. ecos
  236. crcmod
  237. crc16
  238. curses
  239. fann2
  240. python-levenshtein
  241. pypmc
  242. pyminuit
  243. pydde
  244. pycluster
  245. pycld2
  246. fisher
  247. noise
  248. jpype
  249. pyrxp
  250. sparsesvd
  251. zodbpickle
  252. zope.interface
  253. zs
  254. rtmidi-python
  255. line_profiler
  256. lp_solve
  257. marisa-trie
  258. mlpy
  259. natgrid
  260. nlopt
  261. ode
  262. planar
  263. pybluez
  264. pyephem
  265. pyfltk
  266. pyhook
  267. gmpy
  268. scikits.vectorplot
  269. pyodbc
  270. basemap
  271. bitarray
  272. blist
  273. bsdiff4
  274. fastcluster
  275. greenlet
  276. hddm
  277. heatmap
  278. liblinear
  279. udunits
  280. twainmodule
  281. python-snappy
  282. pylzma
  283. statsmodels
  284. videocapture
  285. markupsafe
  286. pycairo
  287. boost.python
  288. freeimagedll
  289. pygraphviz
  290. visvis
  291. mxbase
  292. pyvisa
  293. openpiv
  294. meshpy
  295. jinja2
  296. backports.lzma
  297. wfastcgi
  298. libpython
  299. pyside
  300. zodb
  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