Mailman 3 June 2020 - yt-users

Hdf5 error after Enzo recompilation
by Sam Patrick 17 Jun '20

17 Jun '20

Hello, I've recently recompiled several Enzo data sets with the -g flag to obtain the gravitational potential field. Several are now producing the following error when trying to perform any analysis with yt: File "/opt/apps/pkgs/cpython/3.7.1/intel64/intel_2019.2/lib/python3.7/site-packages/h5py/_hl/files.py", line 170, in make_fid fid = h5f.open(name, flags, fapl=fapl) File "h5py/_objects.pyx", line 54, in h5py._objects.with_phil.wrapper File "h5py/_objects.pyx", line 55, in h5py._objects.with_phil.wrapper File "h5py/h5f.pyx", line 85, in h5py.h5f.open OSError: Unable to open file (file signature not found) I was wondering if anyone else has had the same issue and knows of any workaround? Both Enzo and cpython have been built with version 1.8.17 of hdf5. I'm using version 3.5.1 of yt and version 3.7.1 of cpython. Many thanks, Sam Patrick

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Add YOUR issue to yt-4.0!
by Stephanie Tonnesen 11 Jun '20

11 Jun '20

Hi yt-users and yt-devs, As we are getting closer to the yt-4.0 release, we could really use your help! Do you have an issue with yt that has been bugging you? *In particular we are looking for API issues:* are there ways that using yt is inconsistent? Does an argument that you use in one function differ in another one (e.g. using `axes` in one and `ax` in another? or ds working for some plotting functions but ad required for others?)? Or would you expect to be able to use a function on a yt object and it doesn't work the way you're expecting? *Please add any issues you have to github! * https://github.com/yt-project/yt/issues/new Be as detailed as you can, but don't worry--if someone is confused about the problem, they will ask you! *It is important to do this now, so big API changes are added before the yt-4.0 release! *This will allow them to be better tested for a better yt!! *(fine print: remember, we all want yt to be perfect, but with limited person-hours, the yt-4.0 developers will do the best they can. Please don't be discouraged if your issue isn't solved right away! Also, if you don't know if your issue falls under "API" you can always add it so everyone knows about it, even if it doesn't get pushed in the yt-4.0 release!)* Thanks! Stephanie -- Dr. Stephanie Tonnesen Associate Research Scientist CCA, Flatiron Institute New York, NY stonnes(a)gmail.com

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Reminder: June 01 Deadline for the 2020 John Hunter Excellence in Plotting contest!
by Madicken Munk 01 Jun '20

01 Jun '20

Dear yt-users and yt-dev, My apologies for repeated in-list and cross-list posts! I'd like to remind everybody that the 2020 John Hunter Excellence in Plotting Contest submission deadline is on June 01 -- only a few days away. We welcome and look forward to your submissions! In memory of John Hunter, we are pleased to announce the John Hunter Excellence in Plotting Contest for 2020. This open competition aims to highlight the importance of data visualization to scientific progress and showcase the capabilities of open source software. Participants are invited to submit scientific plots to be judged by a panel. The winning entries will be announced and displayed at SciPy 2020 or announced in the John Hunter Excellence in Plotting Contest website and youtube channel. John Hunter’s family are graciously sponsoring cash prizes for the winners in the following amounts: - 1st prize: $1000 - 2nd prize: $750 - 3rd prize: $500 - Entries must be submitted by June 1st to the form at https://forms.gle/SrexmkDwiAmDc7ej7 - Winners will be announced at Scipy 2020 or publicly on the John Hunter Excellence in Plotting Contest website and youtube channel - Participants do not need to attend the Scipy conference. - Entries may take the definition of “visualization” rather broadly. Entries may be, for example, a traditional printed plot, an interactive visualization for the web, a dashboard, or an animation. - Source code for the plot must be provided, in the form of Python code and/or a Jupyter notebook, along with a rendering of the plot in a widely used format. The rendering may be, for example, PDF for print, standalone HTML and Javascript for an interactive plot, or MPEG-4 for a video. If the original data can not be shared for reasons of size or licensing, "fake" data may be substituted, along with an image of the plot using real data. - Each entry must include a 300-500 word abstract describing the plot and its importance for a general scientific audience. - Entries will be judged on their clarity, innovation and aesthetics, but most importantly for their effectiveness in communicating a real-world problem. Entrants are encouraged to submit plots that were used during the course of research or work, rather than merely being hypothetical. - SciPy and the John Hunter Excellence in Plotting Contest organizers reserves the right to display any and all entries, whether prize-winning or not, at the conference, use in any materials or on its website, with attribution to the original author(s). - Past entries can be found at https://jhepc.github.io/ - Questions regarding the contest can be sent to jhepc.organizers(a)gmail.com John Hunter Excellence in Plotting Contest Co-Chairs Madicken Munk Nelle Varoquaux

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