Update sender.py

Author: Al-Azif

sender.py

@@ -72,7 +72,7 @@ def main():
                 choice = raw_input('Choose a payload to send: ')
                 try:
                     choice = int(choice)
-                except ValueError:
+                except (ValueError, NameError):
                     choice = 0
             with open(os.path.join(CWD, 'payloads', payloads[choice-1]), 'rb') as f:
                 print('>> Sending {}...'.format(payloads[choice-1]))