fix transisiton secop->frappy

devices.py

@@ -254,7 +254,8 @@ class FrappyNode(SecNodeDevice, Moveable):
         available_cfg = set()
         for d in cls.config_dirs(ins, service):
             try:
-                available_cfg |= set(c[:-4] for c in os.listdir(expanduser(d)) if c.endswith('.cfg'))
+                # available_cfg |= set(c[:-4] for c in os.listdir(expanduser(d)) if c.endswith('.cfg'))
+                available_cfg |= set(c[:-7] for c in os.listdir(expanduser(d)) if c.endswith('_cfg.py'))
             except FileNotFoundError:  # ignore missing directories
                 pass
         return available_cfg