minor flake8 fixes

Author: kshitij-maths

pygem/cad/__init__.py

@@ -14,6 +14,6 @@
 
 from .ffd import FFD
 from .rbf import RBF
-from .idw import IDW
-from .custom_deformation import CustomDeformation
+from .idw import IDW # noqa: F401
+from .custom_deformation import CustomDeformation # noqa: F401
 from .cad_deformation import CADDeformation

test.py

@@ -27,7 +27,7 @@
 return_value = 0  # Success
 
 try:
-    import pygem.cad  # pylint: disable=unused-import
+    import pygem.cad  # pylint: disable=unused-import # noqa: F401
 
     return_value = 1 if nose.run(argv=cad_argv) is False else 0
 except ImportError:

tutorials/tutorial6/tutorial-6-ffd-rbf.py

@@ -49,7 +49,7 @@
 # mesh parsing
 # OFPP import
 try:
-    import Ofpp
+    import Ofpp # noqa: F401
 except ImportError:
     raise ImportError(
         "OFPP not found. Please install it before running this script.\n"