Is reader modis_l1b available?

[yhyxzx]

from satpy import Scene import satpy print(satpy.available_readers()) filename = "MOD021KM.A2022091.1315.061.2022092021252.hdf" scene = Scene(filenames=[filename], reader='modis_l1b')

D:\anaconda3\envs\my_satpy_env\python.exe` "D:\Pycharm workspace\mySSTSR\testMODIS.py" ['abi_l1b', 'abi_l1b_scmi', 'abi_l2_nc', 'acspo', 'agri_l1', 'ahi_hrit', 'ahi_hsd', 'ahi_l1b_gridded_bin', 'ami_l1b', 'amsr2_l1b', 'amsr2_l2', 'amsr2_l2_gaasp', 'amsub_l1c_aapp', 'avhrr_l1b_aapp', 'avhrr_l1b_eps', 'avhrr_l1b_hrpt', 'avhrr_l1c_eum_gac_fdr_nc', 'cmsaf-claas2_l2_nc', 'electrol_hrit', 'fci_l1c_nc', 'fci_l2_nc', 'generic_image', 'geocat', 'ghrsst_l2', 'glm_l2', 'goes-imager_hrit', 'goes-imager_nc', 'gpm_imerg', 'hy2_scat_l2b_h5', 'iasi_l2', 'jami_hrit', 'maia', 'mersi2_l1b', 'mhs_l1c_aapp', 'mimicTPW2_comp', 'mirs', 'msu_gsa_l1b', 'mtsat2-imager_hrit', 'mviri_l1b_fiduceo_nc', 'nucaps', 'nwcsaf-geo', 'nwcsaf-msg2013-hdf5', 'nwcsaf-pps_nc', 'oceancolorcci_l3_nc', 'olci_l1b', 'olci_l2', 'omps_edr', 'safe_sar_l2_ocn', 'satpy_cf_nc', 'seviri_l1b_hrit', 'seviri_l1b_native', 'seviri_l1b_nc', 'slstr_l1b', 'smos_l2_wind', 'tropomi_l2', 'vaisala_gld360', 'vii_l1b_nc', 'vii_l2_nc', 'viirs_compact', 'viirs_edr_active_fires', 'viirs_l1b', 'viirs_sdr', 'virr_l1b'] INFO:satpy.readers:Cannot use ['D:\anaconda3\envs\my_satpy_env\Lib\site-packages\satpy\etc\readers\modis_l1b.yaml'] WARNING:satpy.readers:Don't know how to open the following files: {'MOD021KM.A2022091.1315.061.2022092021252.hdf'} Traceback (most recent call last): File "D:\Pycharm workspace\mySSTSR\testMODIS.py", line 5, in scene = Scene(filenames=[filename], File "D:\anaconda3\envs\my_satpy_env\lib\site-packages\satpy\scene.py", line 133, in init self._readers = self._create_reader_instances(filenames=filenames, File "D:\anaconda3\envs\my_satpy_env\lib\site-packages\satpy\scene.py", line 154, in _create_reader_instances return load_readers(filenames=filenames, File "D:\anaconda3\envs\my_satpy_env\lib\site-packages\satpy\readers__init__.py", line 581, in load_readers _check_reader_instances(reader_instances) File "D:\anaconda3\envs\my_satpy_env\lib\site-packages\satpy\readers__init__.py", line 620, in _check_reader_instances raise ValueError("No supported files found") ValueError: No supported files found

[yhyxzx]

My satpy version is 0.37.1

[djhoese]

If you don't already, try installing the pyhdf package and see if that fixes things. It is an optional dependency for satpy, but required for MODIS readers.

[yhyxzx]

The problem has been solved perfectly.Thank you very much! But how can I get optional dependency information for every reader? I am a green hand and I haven't seen information about this in Satpy’s Documentation. @djhoese

[djhoese]

The second note in this installation section:

https://satpy.readthedocs.io/en/stable/install.html#in-an-existing-environment

describes the issue and references the check_satpy function:

https://satpy.readthedocs.io/en/stable/quickstart.html#troubleshooting

which will tell you what dependencies might be missing for certain readers. If you installed Satpy from conda-forge then it likely already has NetCDF4 installed which covers quite a few readers. Other readers depend on pyhdf or h5py and a few others have some more unique dependencies. There is currently no way with the conda-forge package to request "install all dependencies for readers A, B, and C".

[yhyxzx]

I see.Thank you again!