Answer below :
-----Message d'origine----- De : Christoph Groth <christoph.gr...@cea.fr<mailto:christoph.gr...@cea.fr>> Envoyé : mercredi 25 novembre 2020 20:21 À : Olivier Leblanc <o.lebl...@uclouvain.be<mailto:o.lebl...@uclouvain.be>> Cc : kwant-disc...@kwant-project.org<mailto:kwant-disc...@kwant-project.org> Objet : Re: [Kwant] tkwant issue solved Hello Olivier, We are aware that tkwant is not available for Python 3.8 on conda-forge. Unfortunately, as far as I understand, the underlying problem is beyond our control. Olivier Leblanc wrote: > My problem was that even when activating the virtual environment in > cmd, launching "jupyter notebook" did not use the virtual environment > because jupyter notebook was not part of it. So, in other words, you installed tkwant in Python environment A and then you were surprised not to find it in Python environment B. Perhaps this can be seen as a design issue of Python virtual environments, or of Jupyter, but it's certainly not a problem specific to Tkwant or Kwant. No, I installed tkwant in Python environment B, and launching jupyter notebook with environment B activated did not really use environment B but was keeping the environment A. Thus tkwant was not found. This is indeed a problem from python, but adding the last line I suggest wouldn't change anything for users that don't obtain the issue, and would solve the one I had because of Python and Jupyter notebook. > Hoping this will be added on your website. In my opinion listing possible generic problems that one may encounter when using Tkwant is beyond the scope of our web site. I think that this would render the instructions less useful by overloading them. This means I do not ask you to make a generic problems listing, but simply add a command line in your installation tutorial. Cheers Christoph Thank you, Olivier
