python: remove unused imports

diff --git a/scripts/dnp3-gen/dnp3-gen.py b/scripts/dnp3-gen/dnp3-gen.py
index ae2fef7baa898d8a7fedd21ed4a3daf888f34c69..6062032256fb33590fa279489221565cc968b1ea 100755 (executable)
--- a/scripts/dnp3-gen/dnp3-gen.py
+++ b/scripts/dnp3-gen/dnp3-gen.py
@@ -23,9 +23,7 @@ from __future__ import print_function
 
 import sys
 import re
-from cStringIO import StringIO
 import yaml
-import types
 
 import jinja2