style: adding flake8 ignore to imports

Author: ycexiao

src/diffpy/utils/parsers/__init__.py

@@ -14,6 +14,6 @@
 ##############################################################################
 """Various utilities related to data parsing and manipulation."""
 
-from diffpy.utils.parsers import loaddata
-from diffpy.utils.parsers import custom_exceptions
-from diffpy.utils.parsers import serialization
+from diffpy.utils.parsers import custom_exceptions  # noqa: F401
+from diffpy.utils.parsers import loaddata  # noqa: F401
+from diffpy.utils.parsers import serialization  # noqa: F401