Don't worry if only one input file is available

Only one available:

import preprocess

region = ('WesternUS',[-125.698046875,31.676476158707615,
                       -101.00078125,49.51429477264348])
preprocess.preprocess_region(region)
preprocess.preprocess_region_t(t=[2024, 3, 20, 'AM'], region=["WesternUS",], sensor="VIIRS", read_location="s3", read_region_location="local", force=True)

None available:

import preprocess

region = ('WesternUS',[-125.698046875,31.676476158707615,
                       -101.00078125,49.51429477264348])
preprocess.preprocess_region(region)
preprocess.preprocess_region_t(t=[2024, 3, 3, 'AM'], region=["WesternUS",], sensor="VIIRS", read_location="s3", read_region_location="local", force=True)

assigned to @gcorradini

requested review from @gcorradini

approved this merge request

looks good merge away!

mentioned in commit 1010cc23

merged