Fix pep8 issues.

This is in support of issues-1959.

mycroft/util/lang/parse_en.py

@@ -90,12 +90,14 @@ _STRING_NUM_EN.update({
 _STRING_SHORT_ORDINAL_EN = _invert_dict(_SHORT_ORDINAL_STRING_EN)
 _STRING_LONG_ORDINAL_EN = _invert_dict(_LONG_ORDINAL_STRING_EN)
 
+
 # _Token is intended to be used in the number processing functions in
 # this module. The parsing requires slicing and dividing of the original
 # text. To ensure things parse correctly, we need to know where text came
 # from in the original input, hence this nametuple.
 _Token = namedtuple('_Token', 'word index')
 
+
 class _ReplaceableNumber():
     """
     Similar to _Token, this class is used in number parsing.