Don't shadow skrf's io module with the system io module.
@@ -775,8 +775,8 @@ if sys.version_info < (3, 0):
def __exit__(self, *args):
self.close()
else:
- import io
- StringBuffer = io.StringIO
+ from io import StringIO
+ StringBuffer = StringIO
class TouchstoneEncoder(json.JSONEncoder):
