Remove the Filename preprocessor

bob/bio/base/preprocessor/Filename.py

-# @date Wed May 11 12:39:37 MDT 2016
-# @author Manuel Gunther <siebenkopf@googlemail.com>
-
-import os
-
-from .Preprocessor import Preprocessor
-
-
-class Filename(Preprocessor):
-    """This preprocessor is simply passing over the file name, in order to be used in an extractor that loads the data from file.
-
-    The file name that will be returned by the :py:meth:`read_data` function will contain the path of the :py:class:`bob.bio.base.database.BioFile`, but it might contain more paths (such as the ``--preprocessed-directory`` passed on command line).
-    """
-
-    def __init__(self):
-        # call base class constructor, using a custom ``read_original_data`` that does nothing and always returns None
-        super(Filename, self).__init__(
-            writes_data=False, read_original_data=lambda x, y, z: None
-        )
-
-    # The call function (i.e. the operator() in C++ terms)
-    def __call__(self, data, annotations=None):
-        """__call__(data, annotations) -> data
-
-        This function appears to do something, but it simply returns ``1``, which is used nowhere.
-        We could also return ``None``, but this might trigger warnings in the calling function.
-
-        **Parameters:**
-
-        ``data`` : ``None``
-          The file name returned by :py:meth:`read_original_data`.
-
-        ``annotations`` : any
-          ignored.
-
-        **Returns:**
-
-        ``data`` : int
-          1 throughout
-        """
-        return 1
-
-    def write_data(self, data, data_file):
-        """Does **not** write any data.
-
-        ``data`` : any
-          ignored.
-
-        ``data_file`` : any
-          ignored.
-        """
-        pass
-
-    def read_data(self, data_file):
-        """read_data(data_file) -> data
-
-        Returns the name of the data file without its filename extension.
-
-        **Parameters:**
-
-        ``data_file`` : str
-          The name of the preprocessed data file.
-
-        **Returns:**
-
-        ``data`` : str
-          The preprocessed data read from file.
-        """
-        return os.path.splitext(data_file)[0]

bob/bio/base/preprocessor/__init__.py

 # isort: skip_file
 from .Preprocessor import Preprocessor
-from .Filename import Filename
 
 
 # gets sphinx autodoc done right - don't remove it
@@ -21,6 +20,5 @@ def __appropriate__(*args):
 
 __appropriate__(
     Preprocessor,
-    Filename,
 )
 __all__ = [_ for _ in dir() if not _.startswith("_")]

bob/bio/base/test/test_preprocessor.py

-import bob.bio.base
-
-
-def test_filename():
-    # load extractor
-    preprocessor = bob.bio.base.preprocessor.Filename()
-    assert isinstance(preprocessor, bob.bio.base.preprocessor.Preprocessor)
-    assert isinstance(preprocessor, bob.bio.base.preprocessor.Filename)
-
-    # try to load the original image
-    assert (
-        preprocessor.read_original_data(
-            bob.bio.base.database.file.BioFile(1, "2", 3),
-            "/any/path",
-            ".any.extension",
-        )
-        is None
-    )
-
-    # try to process
-    assert preprocessor(None, None) == 1
-
-    # try to write
-    preprocessor.write_data(None, "/any/path")
-
-    # read a file
-    assert preprocessor.read_data("/any/file.name") == "/any/file"