six: util.py: cleanup unused StringIO
@@ -54,7 +54,6 @@ from rdflib.term import BNode
from rdflib.term import Literal
from rdflib.term import URIRef
from .py3compat import sign
-from .py3compat import StringIO
__all__ = [
'list2set', 'first', 'uniq', 'more_than', 'to_term', 'from_n3',
