natargs: add missing import

1 files changed, 2 insertions, 0 deletions

diff --git a/natargs.py b/natargs.py
index f1438a7..1598f17 100644
--- a/natargs.py
+++ b/natargs.py
@@ -2,6 +2,8 @@
 #
 ###########################################################################
 
+import sys
+
 class DuplicateArgumentException:
 	def __str__(self):
 		return f"{self.oldargs} already exists"