Hi Christoph,

Thanks for your support!

I am perplexed regarding my attempts at installing kwant on windows. TinyArray is functional and the import for TinyArray also calls a DLL file with a .pyd extension. TinyArray demonstrates that my installation can find and does load DLL files from within Jupyter notebook.

The log file for kwant install was not that informative. I did however uninstall kwant and reinstall kwant. The uninstall log is more informative.

I've attached some PNG files and the log files for your review. For installation, I executed from CLI

pip -v --log log_kwantInstall.txt install --no-deps kwant-1.1.1-cp27-none-win_amd64.whl

Again, thanks for your time reviewing my particular install issue, and best regards.

Sincerely,

Brendan McDougall

On Friday, January 15, 2016 6:07 AM, Christoph Groth <christoph.groth@cea.fr> wrote:

Hi Brendan,

The error message that you get [1] signals that the module
kwant.linalg.lapack cannot be imported. This is the extension
module that is created from the source file
kwant/linalg/lapack.pyx. On Windows it should have the file name
kwant/linalg/lapack.dll, I believe.

Can you tell us how exactly you installed Kwant? Are you building
Kwant yourself (i.e. using setup.py or pip)? Can you provide a
log of installation?

Christoph

[1] “ImportError: DLL load failed: The specified module could not
be found.”