Remove handle_file indicator, bob.io.base.HDF5File files must be managed by StreamFile.

bob/io/stream/stream_file.py

@@ -11,10 +11,8 @@ class StreamFile:
     def __init__(self, hdf5_file=None, data_format_config_file_path=None, camera_config_file_path=None, mode="r"):
         if isinstance(hdf5_file, str):  # case string: it is a path, use bob.io.base.HDF5File
             self.hdf5_file = HDF5File(hdf5_file, mode)
-            self.handle_file = True
-        elif hdf5_file is not None:  # otherwise expect a file object (bob.io.base.HDF5File, h5py.File, etc...)
+        elif hdf5_file is not None:  # otherwise expect an opened file object (h5py.File, etc...)
             self.hdf5_file = hdf5_file
-            self.handle_file = False  # do not handle opening or closing the actual file object
         else:
             self.hdf5_file = None
         if data_format_config_file_path is not None:
@@ -30,7 +28,7 @@ class StreamFile:
         pass
 
     def __exit__(self, exc_type, exc_val, exc_tb):
-        if self.hdf5_file is not None and self.handle_file:
+        if isinstance(self.hdf5_file, HDF5File):
             self.hdf5_file.close()
 
     # set source