[python #VOC-640241]: siphon filter_time_nearest : No datasets with times found
- Subject: [python #VOC-640241]: siphon filter_time_nearest : No datasets with times found
- Date: Mon, 28 Sep 2020 21:53:37 -0600
Due to the way the grib collections are structured by the THREDDS Data Server,
you need to use `.catalog_refs` rather than `.datasets`. So that code would
cat = TDSCatalog('http://thredds.ucar.edu/thredds/catalog/grib/'
# Find the run closest to 6 hours ago
time = datetime.utcnow() - timedelta(hours=6)
ds = cat.catalog_refs.filter_time_nearest(time)
# Find all runs from the last day
end = datetime.utcnow()
start = end - timedelta(days=1)
Also, if you're accessing model data, you just might be better off using the
'Full Collection (Reference / Forecast Time) Dataset', 'Best GFS Quarter Degree
Forecast Time Series', or 'Latest Collection for GFS Quarter Degree Forecast'
datasets that *are* available within the `.datasets` attribute. You can also
see them listed at the top of the catalog here:
Hope this helps,
> Ryan !
> I'm trying to get filter_time_nearest to work. I tried the code in
> https://www.unidata.ucar.edu/blogs/news/entry/siphon-0-5 (and changed
> "cat.filter_time_nearest(time)" to "cat.datasets.filter_time_nearest(time)"
> ), but I get "No datasets with times found".
> Suggestions ?
Ticket ID: VOC-640241
Department: Support Python
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