old_contents: from .common import expects_file_info, FileHandler
  
  
  class SatPy(FileHandler):
      """Wrapper for SatPy readers
  
      SatPy provides many readers for different satellite files. With this
      simple wrapper class, you can use them with typhon's FileSet without
      requiring any extra code!
      """
  
      def __init__(self, satpy_reader):
          super(SatPy, self).__init__()
  
          self.satpy_reader = satpy_reader
  
      @expects_file_info
      def read(self, filename, **kwargs):
          pass
new_contents: from satpy import Scene
  import xarray as xr
  
  from .common import expects_file_info, FileHandler
  
  
  class SatPy(FileHandler):
      """Wrapper for SatPy readers
  
      SatPy provides many readers for different satellite files. With this
      simple wrapper class, you can use them with typhon's FileSet without
      requiring any extra code!
  
      Warnings:
          At the moment, this wrapper works for retrieving fields with the
          same resolution only. Latitudes and longitudes are not retrieved.
      """
  
      def __init__(self, satpy_reader):
          super(SatPy, self).__init__()
  
          self.satpy_reader = satpy_reader
  
      @expects_file_info()
      def read(self, filename, fields=None, **kwargs):
          scene = Scene(
              reader=self.satpy_reader,
              filenames=[filename.path]
          )
  
          # If the user has not passed any fields to us, we load all per default.
          if fields is None:
              fields = scene.available_dataset_ids()
  
          # Load all selected fields
          scene.load(fields, **kwargs)
  
          if isinstance(fields[0], str):
              data_arrays = {field: scene.get(field) for field in fields}
          else:
              data_arrays = {field.name: scene.get(field) for field in fields}
  
          for name, array in data_arrays.items():
              array.name = name
  
          dataset = xr.merge(data_arrays.values())
  
          return dataset
  
  
  
subject: Update SatPy wrapper