Dask pipelines Improvements

This MR improves the dask pipelines port.

bob/pad/base/database/__init__.py

@@ -6,26 +6,21 @@ from .PadBioFileDB import HighBioDatabase, HighPadDatabase
 
 # gets sphinx autodoc done right - don't remove it
 def __appropriate__(*args):
-  """Says object was actually declared here, and not in the import module.
-  Fixing sphinx warnings of not being able to find classes, when path is shortened.
-  Parameters:
+    """Says object was actually declared here, and not in the import module.
+    Fixing sphinx warnings of not being able to find classes, when path is shortened.
+    Parameters:
 
-    *args: An iterable of objects to modify
+      *args: An iterable of objects to modify
 
-  Resolves `Sphinx referencing issues
-  <https://github.com/sphinx-doc/sphinx/issues/3048>`
-  """
+    Resolves `Sphinx referencing issues
+    <https://github.com/sphinx-doc/sphinx/issues/3048>`
+    """
 
-  for obj in args:
-    obj.__module__ = __name__
+    for obj in args:
+        obj.__module__ = __name__
 
 
 __appropriate__(
-    PadFile,
-    PadDatabase,
-    FileListPadDatabase,
-    Client,
-    HighBioDatabase,
-    HighPadDatabase
+    PadFile, PadDatabase, FileListPadDatabase, Client, HighBioDatabase, HighPadDatabase
 )
-__all__ = [_ for _ in dir() if not _.startswith('_')]
+__all__ = [_ for _ in dir() if not _.startswith("_")]