Hi Piyush,

OK -- I think the simplest solution *for now* would be to catch the exception in your loop. This isn't really a long term solution, but it should be able to get you to the next step.

The longer term solution would be for yt to just return empty arrays -- that should allow you to query the metadata but not get the keyerrors.

On Fri, Oct 27, 2023 at 4:07 AM <piyush.suneet@gmail.com> wrote:

Hi Matt,

Thanks for your response!

If I do h5ls -r on a particle file that has no particles, I get:

(base) RSAA-043527:Documents psharda$ h5ls -r FLASH_part_0003
/ Group
/integer\ runtime\ parameters Dataset {136}
/integer\ scalars Dataset {17}
/localnp Dataset {585}
/logical\ runtime\ parameters Dataset {147}
/logical\ scalars Dataset {2}
/real\ runtime\ parameters Dataset {206}
/real\ scalars Dataset {13}
/sim\ info Dataset {1}
/string\ runtime\ parameters Dataset {152}
/string\ scalars Dataset {1}
/unknown\ names Dataset {37, 1}

If I do the same on a particle file that has particles:

(base) RSAA-043527:Documents psharda$ h5ls -r FLASH_part_0044
/ Group
/integer\ runtime\ parameters Dataset {136}
/integer\ scalars Dataset {17}
/localnp Dataset {2753}
/logical\ runtime\ parameters Dataset {147}
/logical\ scalars Dataset {2}
/particle\ names Dataset {37, 1}
/real\ runtime\ parameters Dataset {206}
/real\ scalars Dataset {13}
/sim\ info Dataset {1}
/string\ runtime\ parameters Dataset {152}
/string\ scalars Dataset {1}
/tracer\ particles Dataset {3, 37}
/unknown\ names Dataset {37, 1}
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