viewers not found
Hi, If I run from the build directory, I obtain a File /home/benny/git/fipy/fipy/viewers/__init__.py, line 133, in Viewer raise ImportError, No viewers found. Run `python setup.py egg_info` or similar. It seems it is needed to do python setup.py build egg_info mv FiPy.egg-info build/lib.linux-x86_64-2.7/ where last dir is changed to your actually build dir After that fipy is usable via PYTHONPATH, eg PYTHONPATH=/home/benny/git/fipy/build/lib.linux-x86_64-2.7/ python main.py I don't like to run the install command myself when working from git. As the egg_info command adds the egg dir to fipy directory, and not build directory, is it assumed you should use PYTHONPATH from the git dir itself, so PYTHONPATH=/home/benny/git/fipy/ python main.py which works then? I don't like that that creates all the .pyc files to the git tree. Perhaps this could be added INSTALLATION.txt ? Greetings, Benny ___ fipy mailing list fipy@nist.gov http://www.ctcms.nist.gov/fipy [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ]
Re: viewers not found
2014-06-19 16:44 GMT+02:00 Daniel Wheeler daniel.wheel...@gmail.com: Benny, Good to hear from you. Did you try python setup.py develop? This allows you to develop on an installed version of a python package. No need to mess with PYTHONPATH. Cheers, Daniel On Thu, Jun 19, 2014 at 8:56 AM, Benny Malengier benny.maleng...@gmail.com wrote: Hi, If I run from the build directory, I obtain a File /home/benny/git/fipy/fipy/viewers/__init__.py, line 133, in Viewer raise ImportError, No viewers found. Run `python setup.py egg_info` or similar. It seems it is needed to do python setup.py build egg_info It is a bit odd that the viewers need that, but python setup.py develop should deal with any issues like that if you are hacking FiPy. Thanks for the tip, was not aware of it. Benny -- Daniel Wheeler ___ fipy mailing list fipy@nist.gov http://www.ctcms.nist.gov/fipy [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ] ___ fipy mailing list fipy@nist.gov http://www.ctcms.nist.gov/fipy [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ]
question on source term
Hi, another question. This time on SourceTerm use. I'm checking an article with diffusion and reaction. So some species diffuse, others only react (waiting for diffused species to start). If there is an example with this floating on the internet, do point it my way! You then have a coupled set of equations, of which one of the non diffusive species will have equation like eqn3 = TransientTerm(var=P0) == ImplicitSourceTerm(-k3*M1, var=P0) + ImplicitSourceTerm(-k5*M2, var=P0) eqn4 = TransientTerm(var=P1) == ImplicitSourceTerm(k3*P0, var=M1) M1 will have another equation that has a diffusionterm. In eqn3 it is normal to use ImplicitSourceTerm as the rhs has -k3 M1 P0. In eqn4, we could actually write eqn4 = TransientTerm(var=P1) == k3*P0*M1 or eqn4 = TransientTerm(var=P1) == ImplicitSourceTerm(k3*M1, var=P0) In light that all will be coupled in one equation to solve, will this lead to different solutions? Or will fipy internally all give this the same matrix formulation? Also, in eqn3, the first term in rhs is actually -k3 M1 P0. It seems nicest if somehow it is guaranteed that values as in eqn4 for this term would be used. Will this be the case in this formulation? Perhaps there is a way to do this nicer and introduce a helper variable, U=M1*P0, so as to have only in eqn3 and eqn4 ImplicitSourceTerm(-k3, var=U) and ImplicitSourceTerm(k3, var=U) respectively. If so, how to go about to do this. If I do ImplicitSourceTerm(-k3, var=M1*P0) I get immediately the error fipy.terms.SolutionVariableNumberError: Different number of solution variables and equations. So, I would need an equation for U, would that be eqnhelper = ImplicitSourceTerm(1, var=U) == M1*P0 Or am I making things too complicated now. Thanks! Benny ___ fipy mailing list fipy@nist.gov http://www.ctcms.nist.gov/fipy [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ]
