Improved error handling

pyn/cli.py

@@ -3,6 +3,8 @@ from pyn.config import load_config
 
 from pyn import commands, todo  # type: ignore
 
+import sys
+
 
 def main():
     options = vars(parser.parse_args())
@@ -22,7 +24,8 @@ def main():
     try:
         f(**options)
     except RuntimeError as e:
-        parser.exit(1, str(e))
+        sys.stderr.write(f"{e}\n")
+        parser.exit(1)
 
 
 if __name__ == "__main__":