That means I can use alps packages directly from Vistrails, I see. I have never used Vistrails, so I was wondering if I could use alps packages directly from Python 2.7. I will try to build the package from source and let you know about my progress. Thank you so much Dr. Troyer, I really appreciate your help.

~Niraj


On Wed, Feb 26, 2014 at 3:25 PM, Matthias Troyer <troyer@phys.ethz.ch> wrote:
You can use the binary ALPS packages only with the Python interpreter that comes with VisTrails. The reason is that you need to compile a Pyhton package for a specific interpreter. If you want to use it with your 32 bit version of Python then you will need to build the package from source.

Matthias

On 26 Feb 2014, at 21:15, Niraj Ghimire <niraj.ghimire@gmail.com> wrote:

I use a 64 bit version of Win 7 but Python 2.7 that I have on my machine is 32 bit. All the python modules I have (for example, numpy, scipy, matplotlib etc) are 32 bit supported.


On Wed, Feb 26, 2014 at 3:12 PM, Matthias Troyer <troyer@phys.ethz.ch> wrote:
Do you use a 32 bit or 64 bit version of Win7?

On 26 Feb 2014, at 21:11, Niraj Ghimire <niraj.ghimire@gmail.com> wrote:

Dr. Troyer, I will uninstall alps-vistrails extension and also Vistrails and then do a clean installation of Vistrails and let you know. I am using Windows 7 Home Premium. Thank you.


On Wed, Feb 26, 2014 at 3:08 PM, Matthias Troyer <troyer@phys.ethz.ch> wrote:
You should not need to install alps-vistrails-2.2.b1-win32.exe then. Can you try just with a clean installation of VisTrails and tell me which version of Windows you use?

On 26 Feb 2014, at 21:06, Niraj Ghimire <niraj.ghimire@gmail.com> wrote:

Yes Dr. Troyer, I also installed Vistrails 2.1.1. 


On Wed, Feb 26, 2014 at 3:05 PM, Matthias Troyer <troyer@phys.ethz.ch> wrote:
Did you install VisTrails?

On 26 Feb 2014, at 21:04, Niraj Ghimire <niraj.ghimire@gmail.com> wrote:

> Dear ALPS users,
>
>         I have been trying to run ALPS applications from Python 2.7 on Windows 7 OS. I installed the binary packages alps-2.2.b1-win32.exe and alps-vistrails-2.2.b1-win32.exe. Still when I try to run any ALPS project, I keep getting the error message "No module named pyalps." I don't understand why python is not able to import this module at all, and I also don't have any idea where this module is located.
>
>          I would really appreciate any help whatsoever. Thanks in advance.
>
>
> Regards,
> Niraj Ghimire
> Graduate Student
> Department of Physics
> University of Connecticut
>