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

Many binaries depend on Numpy-MKL 1.8 and the Microsoft Visual C++ 2008 (x64, x86, and SP1 for CPython 2.6 to 3.2) 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 installers are ZIP or 7z files, which allows for manual or scripted repackaging or installation 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. dynd
  3. gevent
  4. bokeh
  5. blaze
  6. pygit2
  7. numba
  8. llvmlite
  9. iris
  10. pillow
  11. mercurial
  12. netcdf4
  13. rpy2
  14. biopython
  15. reportlab
  16. scipy
  17. yt
  18. nibabel
  19. backports
  20. pandas
  21. ets
  22. pyalembic
  23. requests
  24. setuptools
  25. shapely
  26. scikit-bio
  27. pycairo
  28. spyder
  29. statsmodels
  30. python-dateutil
  31. pytz
  32. sfepy
  33. apsw
  34. python-igraph
  35. pyqwt
  36. pylzma
  37. openimageio
  38. pymssql
  39. pyvisa
  40. sympy
  41. lxml
  42. lsqfit
  43. thrift
  44. pyicu
  45. pyside
  46. guiqwt
  47. pyqt4
  48. regex
  49. gdal
  50. cellcognition
  51. vigra
  52. h5py
  53. pytables
  54. pycurl
  55. ipython
  56. pygments
  57. mahotas
  58. pyspharm
  59. imread
  60. scons
  61. kiwisolver
  62. enaml
  63. atom
  64. faulthandler
  65. conda
  66. libsvm
  67. liblinear
  68. bigfloat
  69. yappi
  70. visvis
  71. simplejson
  72. line_profiler
  73. rasterio
  74. fiona
  75. bioformats
  76. javabridge
  77. mysqlclient
  78. numpy
  79. pyzmq
  80. pyfftw
  81. minepy
  82. mlpy
  83. matplotlib
  84. py2exe
  85. veusz
  86. greenlet
  87. cython
  88. sqlalchemy
  89. bcolz
  90. psutil
  91. vlfd
  92. pyparsing
  93. pymc
  94. pywin32
  95. friture
  96. pymol
  97. orange
  98. python-ldap
  99. gmpy
  100. pymca
  101. blender-mathutils
  102. jcc
  103. scientificpython
  104. opencv
  105. kwant
  106. pymunk
  107. pulp
  108. jpype
  109. intbitset
  110. astropy
  111. qutip
  112. networkx
  113. twisted
  114. pylibtiff
  115. quickfix
  116. six
  117. nltk
  118. tornado
  119. numexpr
  120. rtree
  121. polygon
  122. pythonnet
  123. pycares
  124. scikit-learn
  125. psycopg
  126. sphinx
  127. vispy
  128. scipy-stack
  129. nose
  130. libpython
  131. pyxml
  132. cvxopt
  133. pycuda
  134. basemap
  135. qimage2ndarray
  136. iminuit
  137. pgmagick
  138. milk
  139. llvmpy
  140. pymongo
  141. nlopt
  142. libsbml
  143. pysqlite
  144. pyfits
  145. patsy
  146. certifi
  147. mxbase
  148. python-lz4
  149. blosc
  150. meshpy
  151. docutils
  152. cffi
  153. scikit-image
  154. lp_solve
  155. pyeda
  156. pystemmer
  157. pyopengl
  158. pyrxp
  159. pymvpa
  160. cartopy
  161. natgrid
  162. python-levenshtein
  163. ecos
  164. msgpack
  165. pyfmi
  166. assimulo
  167. nitime
  168. mako
  169. jinja2
  170. pyephem
  171. pyopencl
  172. mod_wsgi
  173. cx_freeze
  174. pyviennacl
  175. virtualenv
  176. pip
  177. markupsafe
  178. vitables
  179. mpi4py
  180. quantlib
  181. pyaudio
  182. steps
  183. mmtk
  184. pyminuit
  185. smc.freeimage
  186. vtk
  187. pyhdf
  188. pyyaml
  189. pycifrw
  190. pygame
  191. videocapture
  192. pythonmagick
  193. pyvrml97
  194. openglcontext
  195. zope.interface
  196. blist
  197. aspell-python
  198. ode
  199. pycluster
  200. cdecimal
  201. noise
  202. scikits.odes
  203. scikits.umfpack
  204. scikits.ann
  205. scikits.vectorplot
  206. curses
  207. mysql-python
  208. oursql
  209. libtfr
  210. htseq
  211. marisa-trie
  212. ffnet
  213. polymode
  214. slycot
  215. ta-lib
  216. pymutt
  217. bsdiff4
  218. pyfltk
  219. pyisapie
  220. pycparser
  221. pybluez
  222. openbabel
  223. pysfml
  224. pywavelets
  225. pyserial
  226. ujson
  227. rtmidi-python
  228. kivy
  229. nipype
  230. pydde
  231. llist
  232. pymix
  233. dipy
  234. bio_formats
  235. bottleneck
  236. fastcluster
  237. la
  238. cgkit
  239. planar
  240. ceodbc
  241. scipy-cluster
  242. pyhook
  243. pyproj
  244. sparsesvd
  245. simpleitk
  246. casuarius
  247. coverage
  248. twainmodule
  249. python-snappy
  250. theano
  251. boost.python
  252. bitarray
  253. pyodbc
  254. pycosat
  255. fonttools
  256. pylibdeconv
  257. fipy
  258. tinyarray
  259. pyshp
  260. carray
  261. pysparse
  262. nipy
  263. bazaar
  264. pygraphviz
  265. babel
  266. pyamg
  267. umysql
  268. scikits.samplerate
  269. scikits.scattpy
  270. scikits.hydroclimpy
  271. scikits.delaunay
  272. autopy
  273. libxml-python
  274. pyusb-ftdi
  275. mmlib
  276. cellprofiler
  277. pyreadline
  278. py-fcm
  279. liblas
  280. vpython
  281. scikits.audiolab
  282. py-postgresql
  283. pyamf
  284. holopy
  285. pyropes
  286. epydoc
  287. cheetah
  288. pywcs
  289. python-sundials
  290. openexr
  291. dpmix
  292. cld
  293. mdp
  294. pycogent
  295. jsonlib
  296. silvercity
  297. console
  298. python-cjson
  299. pytst
  300. sendkeys
  301. pydbg
  302. pyglet
  303. python-lzo
  304. delny
  305. pyexiv2
  306. ilastik
  307. scitools
  308. trfit
  309. re2
  310. cgal-python
  311. pymedia
  312. pyfftw3
  313. pymex
  314. pymatlab
  315. zodb3
  316. pygtk
  317. numeric
  318. nmoldyn
  319. iocbio
  320. wxpython
  321. pybox2d
  322. mmseg
  323. pynifti
  324. scikits.timeseries
  325. numscons
  326. visionegg


Other useful packages and applications not currently available on this page