How do I install SciPy on 64 bit Windows?
How do I install SciPy on my system?
For the NumPy part (that SciPy depends on) there is actually an installer for 64 bit Windows: numpy-1.3.0.win-amd64-py2.6.msi (is direct download URL, 2310144 bytes).
Running the SciPy superpack installer results in this message in a dialog box:
Cannot install. Python version 2.6 required, which was not found in the registry.
I already have Python 2.6.2 installed (and a working Django installation in it), but I don't know about any Registry story.
The registry entries seem to already exist:
REGEDIT4
[HKEY_LOCAL_MACHINE\SOFTWARE\Python]
[HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore]
[HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6]
[HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\Help]
[HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\Help\Main Python Documentation]
@="D:\\Python262\\Doc\\python262.chm"
[HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\InstallPath]
@="D:\\Python262\\"
[HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\InstallPath\InstallGroup]
@="Python 2.6"
[HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\Modules]
[HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\PythonPath]
@="D:\\Python262\\Lib;D:\\Python262\\DLLs;D:\\Python262\\Lib\\lib-tk"
What I have done so far:
Step 1
Downloaded the NumPy superpack installer numpy-1.3.0rc2-win32-superpack-python2.6.exe (direct download URL, 4782592 bytes). Running this installer resulted in the same message, "Cannot install. Python version 2.6 required, which was not found in the registry.". Update: there is actually an installer for NumPy that works - see beginning of the question.
Step 2
Tried to install NumPy in another way. Downloaded the zip package numpy-1.3.0rc2.zip (direct download URL, 2404011 bytes), extracted the zip file in a normal way to a temporary directory, D:\temp7\numpy-1.3.0rc2 (where setup.py and README.txt is). I then opened a command line window and:
d:
cd D:\temp7\numpy-1.3.0rc2
setup.py install
This ran for a long time and also included use of cl.exe (part of Visual Studio). Here is a nearly 5000 lines long transcript (230 KB).
This seemed to work. I can now do this in Python:
import numpy as np
np.random.random(10)
with this result:
array([ 0.35667511, 0.56099423, 0.38423629, 0.09733172, 0.81560421,
0.18813222, 0.10566666, 0.84968066, 0.79472597, 0.30997724])
Step 3
Downloaded the SciPy superpack installer, scipy-0.7.1rc3- win32-superpack-python2.6.exe (direct download URL, 45597175 bytes). Running this installer resulted in the message listed in the beginning
Step 4
Tried to install SciPy in another way. Downloaded the zip package scipy-0.7.1rc3.zip (direct download URL, 5506562 bytes), extracted the zip file in a normal way to a temporary directory, D:\temp7\scipy-0.7.1 (where setup.py and README.txt is). I then opened a command line window and:
d:
cd D:\temp7\scipy-0.7.1
setup.py install
This did not achieve much - here is a transcript (about 95 lines).
And it fails:
>>> import scipy as sp2
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named scipy
Platform: Python 2.6.2 installed in directory D:\Python262, Windows XP 64 bit SP2, 8 GB RAM, Visual Studio 2008 Professional Edition installed.
The startup screen of the installed Python is:
Python 2.6.2 (r262:71605, Apr 14 2009, 22:46:50) [MSC v.1500 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>>
Value of PATH, result from SET in a command line window:
Path=D:\Perl64\site\bin;D:\Perl64\bin;C:\Program Files (x86)\PC Connectivity Solution\;D:\Perl\site\bin;D:\Perl\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;d:\Program Files (x86)\WinSCP\;D:\MassLynx\;D:\Program Files (x86)\Analyst\bin;d:\Python262;d:\Python262\Scripts;D:\Program Files (x86)\TortoiseSVN\bin;D:\Program Files\TortoiseSVN\bin;C:\WINDOWS\system32\WindowsPowerShell\v1.0;D:\Program Files (x86)\IDM Computer Solutions\UltraEdit\
Answer
Unofficial 64-bit installers for NumPy and SciPy are available at http://www.lfd.uci.edu/~gohlke/pythonlibs/
Make sure that you download & install the packages (aka. wheels) that match your CPython version and bitness (ie. cp35 = Python v3.5; win_amd64 = x86_64).
You'll want to install NumPy first; From a CMD prompt with administrator privileges for a system-wide (aka. Program Files) install:
C:\>pip install numpy‑<version>+mkl‑cp<ver-spec>‑cp<ver-spec>m‑<cpu-build>.whl
Or include the --user flag to install to the current user's application folder (Typically %APPDATA%\Python on Windows) from a non-admin CMD prompt:
C:\>pip install --user numpy‑<version>+mkl‑cp<ver-spec>‑cp<ver-spec>m‑<cpu-build>.whl
Then do the same for SciPy:
C:\>pip install [--user] scipy‑<version>‑cp<ver-spec>‑cp<ver-spec>m‑<cpu-build>.whl
Don't forget to replace <version>, <ver-spec>, and <cpu-build> appropriately if you copy & paste any of these examples. And also that you must use the numpy & scipy packages from the ifd.uci.edu link above (or else you will get errors if you try to mix & match incompatible packages -- uninstall any conflicting packages first [ie. pip list]).