qutip packages on the conda-forge

[Alex Pitchford]

It is now possible to install qutip as a conda package by using the conda-forge channel using the follow commands (assuming you already have Anaconda installed).

conda config --add channels conda-forge 

conda install qutip

More details are available at:https://github.com/conda-forge/qutip-feedstock

There are only packages available are for v3.1.0 (the last official release) and we are trying to ensure the packages are reliable before our up-coming 3.2.0 release.  There is also only Python 2.7 packages for Windows, as we still have issues with Windows and Python 3.x.

The idea is that the packages should install, and the vast majority of the library be functional, without the need for a C compiler, as this has been found to be difficult for some (mainly Windows) users.  If in Windows, if you wish to use the runtime cython features (string format time-dependent Hamiltonians), then it this should be possible with this command (note the mingwpy package is also from the conda-forge):

conda install mingwpy cython

However, right now there appear to be some issues with this. We will aim to have this fixed for the 3.2 release, and may update these packages too, if it is an easy patch.

Please reply to this post if you find some issues with the packages.

[Xiaodong Qi]

I tried to run the 3.2.0-dev version of QuTiP using a Jupyter notebook, but I am not sure how to make it work. I am on Ubuntu 16.04 now, and am especially interested in the stochastic master equation solvers.

First thing I have tried is to use the command line you pointed out to configure the conda environment, but it only installs QuTiP-3.1.0. Then all notebook in the development folder of examples will fail for lack of definition of functions. I also tried to build QuTiP from the master branch of the source, but it still generates errors. For example, I will have the following error which indicates a miss of qutip.cyQ module:

>>> from qutip.cyQ.spmatfuncs import cy_expect, spmv

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

ImportError: No module named 'qutip.cyQ'

Hopefully you can shadow a light on the correct configuration with Jupyter notebook environment to run the latest QuTiP. Thanks!

[Alex Pitchford]

The conda-forge channel is only for fully released qutip versions. 

As you are running on ubuntu, you should not have any problems installing qutip from source following the instructions on the qutip website.

Please post something under

https://groups.google.com/forum/#!topic/qutip/xeXuQa13m0k

if you do have any problems installing from source on Ubuntu

--
You received this message because you are subscribed to the Google Groups "QuTiP: Quantum Toolbox in Python" group.
To unsubscribe from this group and stop receiving emails from it, send an email to qutip+un...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[Alex Pitchford]

There are currently issues with the qutip conda-forge packages for MS Windows. I have spent a lot of time looking into it, and asked for external help, but there does not seem to be an easy solution at the moment. 

I am hoping that there is some problem with the current conda vs2008_runtime package, and that this will get fixed, but this is only a bit of a guess.

To unsubscribe from this group and stop receiving emails from it, send an email to qutip+unsubscribe@googlegroups.com.

[Anant Kulkarni]

Dear Sir,

when I run the command conda install mingwpy cython , following error appeared 

-mingwpy-> python 2.7*

           python 3.6*    

use "conda info<package>" to see the dependencies for each package.  

Kindly, help me to get the qutip installed.

Thanks and regards 

UnsatisfiableError: The following specifications were found to in conflict:

[Alex Pitchford]

Our packages on the conda-forge no longer require mingwpy.

Are you following our installation instructions?

http://qutip.org/docs/4.1/installation.html

--

[Anant Kulkarni]

I have installed the anaconda and qutip on windows platform. I am following the http://qutip.org/docs/4.1/installation.html.

To unsubscribe from this group and stop receiving emails from it, send an email to qutip+un...@googlegroups.com.