How do I install SciPy on 64 bit Windows?

Question

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 1

Okey, here I am going to share what I have done to install SciPy on my Windows PC without the command line.

My PC configuration is Windows 7 64-bit and Python 2.7

• First I download the required packages form http://www.lfd.uci.edu/~gohlke/pythonlibs/ (which version match your configuration EX: cp27==>python2.7 & cp35==>3.5)
• Second I extract the file using 7-Zip (also can be used any zipper like WinRAR)
• Third I copy the scipy folder which I extracted and paste it into C:\Python27\Lib\site-packages (or put it where the exact location is in your PC like ..\..\Lib\site-packages)

NOTE: You have to install NumPy first before installing SciPy in this same way.

Answer 2

Short answer: Windows 64 bit support is still work in progress at this time. The superpack will certainly not work on a 64-bits Python (but it should work fine on a 32 bits Python, even on Windows 64 bit).

The main issue with Windows 64 bit is that building with mingw-w64 is not stable at this point: it may be our's (NumPy developers) fault, Python's fault or mingw-w64. Most likely a combination of all those :). So you have to use proprietary compilers: anything other than the Microsoft compiler crashes NumPy randomly; for the Fortran compiler, ifort is the one to use. As of today, both NumPy and SciPy source code can be compiled with Visual Studio 2008 and ifort (all tests passing), but building it is still quite a pain, and not well supported by the NumPy build infrastructure.

Answer 3

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]).

Answer 4

Install a Python distribution, http://www.python.org/download/.

Download and install the Anaconda Python distribution.

Make the Anaconda Python distribution link to Python 3.3 if you want NumPy, SciPy or Matplotlib to work in Python 3.3, or just use it like that to have only Python 2.7 and older functionality.

The blog post Anaconda Python Distribution Python 3.3 linking provides more detail about Anaconda.

Answer 5

Okay a lot has been said, but just in case nothing of the previous answers work, you can try;

https://www.scipy.org/install.html

According to them;

For most users, especially on Windows, the easiest way to install the packages of the SciPy stack is to download one of these Python distributions, which include all the key packages:

• Anacond: A free distribution for the SciPy stack. Supports Linux, Windows and Mac.
• Enthought Canopy: The free and commercial versions include the core SciPy stack packages. Supports Linux, Windows and Mac.
• Python(x,y) A free distribution including the SciPy stack, based around the Spyder IDE. Windows only.
• WinPython: A free distribution including the SciPy stack. Windows only.
• Pyzo: A free distribution based on Anaconda and the IEP interactive development environment. Supports Linux, Windows and Mac.

Still for me, Anaconda did solve this problem. Do remember to check the bit (32/64 bit) version before downloading and re-adjust your compiler to the Python implementation installed with the Python distribution you are installing.

Answer 6

I haven't tried it, but you may want to download this version of Portable Python. It comes with Scipy-0.7.0b1 running on Python 2.5.4.