Nawab: Fix the keyboard Interrupt

This commit fixes #58

nawab.py

@@ -3,6 +3,7 @@
 import pandas as pd
 import pwd
 import os
+import sys
 import threading
 import argparse
 import logging
@@ -119,5 +120,12 @@ def main():
             nawab.tg_bot_run()
 
 
-if __name__ == "__main__":
-    main()
+if __name__ == '__main__':
+    try:
+        main()
+    except KeyboardInterrupt:
+        print('Interrupted')
+        try:
+            sys.exit(0)
+        except SystemExit:
+            os._exit(0)