tmp

main.py

@@ -129,6 +129,10 @@ class Interpreter(cmd.Cmd):
         print(f"2 - fuzzy")
 
     def do_link_pattern(self, arg):
+        if not len(arg.split()):
+            print("expected name of the pattern")
+            return
+
         """prints available linking patterns"""
         pattern_id = int(arg.split()[0])
         print_link_stats(link_patterns[pattern_id])
@@ -187,4 +191,7 @@ class Interpreter(cmd.Cmd):
 
 
 if __name__ == '__main__':
-    Interpreter().cmdloop()
+    try:
+        Interpreter().cmdloop()
+    except KeyboardInterrupt as kb:
+        print("process terminated")