Cannot get find_files_and_readers() working

[lobsiger...@gmail.com]

Hi all,

I try to use this function for the first time with the test data V2 distributed for EPS-SG.

Whatever I do I always get the full directory listing of orbit3. Example code used:

...

bestfiles = find_files_and_readers(base_dir = '/home/eumetcast/VII_L1B/orbit3',

         reader = 'vii_l1b_nc',
         start_time = datetime(2008,2,23,8,45),
         end_time   = datetime(2008,2,23,8,47))
print (bestfiles)

quit()

...

Did I miss something? Any ideas?

Best regards,

Ernst

[David Hoese]

Ernst,

I would consider this a bug in the 'vii_l1b_nc' reader. We can see in
the YAML that the file patterns are defined with "sensing_start_time"
and "sensing_end_time", but Satpy's finding functionality assumes
"start_time" and "end_time". We'll have to see what others say about
this as I'm not very familiar with this reader, but this seems like
something that should be fixed/updated.

Dave

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[David Hoese]

Oops, forgot to link to the reader YAML:

https://github.com/pytroll/satpy/blob/3e94d59bad6f89306b19306f2e46b73df0e21d7b/satpy/etc/readers/vii_l1b_nc.yaml#L14-L16

[lobsiger...@gmail.com]

Hi Dave,

yes this vii reader is a "work in progress" with a PR under review. I tried find_files_and_readers() with Meteosat 'seviri' files and it worked.

Going through the file patterns of a couple of other readers these normally use "start_time" and "end_time" as you mentionned above.

I have replaced find_files_and_readers() for my 'vii_l1b_nc' script with a couple of own lines.  It's still about TestDataV2 anyway ...

Best regards,

Ernst