updated default scenario for interactive.py, fixed directory error

Author: ryan-lowe

bin/interactive.py

@@ -10,7 +10,7 @@
 if __name__ == '__main__':
  # parse arguments
  parser = argparse.ArgumentParser(description=None)
- parser.add_argument('-s', '--scenario', default='', help='Path of the scenario Python script.')
+ parser.add_argument('-s', '--scenario', default='simple.py', help='Path of the scenario Python script.')
  args = parser.parse_args()
 
  # load scenario from script