From 18fcb77f9543efb2a83c4777f8ee6bc2a2b7c002 Mon Sep 17 00:00:00 2001
From: Wolfgang Müller
Date: Sat, 1 May 2021 13:14:35 +0200
Subject: actions: Error out when the range for --around is missing

Previously this case was handled by the int() cast in the try/except
block but resulted in a confusing error message. Make clear to the user
what exactly went wrong.
---
 quarg/actions.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/quarg/actions.py b/quarg/actions.py
index e1fbc57..528d515 100644
--- a/quarg/actions.py
+++ b/quarg/actions.py
@@ -46,6 +46,9 @@ class ParseAround(argparse.Action):
     def __call__(self, parser, namespace, aroundspec, option_string=None):
         if '/' in aroundspec:
             datespec, rangespec = aroundspec.split('/', 1)
+            if not rangespec:
+                errx('Missing range for --around')
+
             try:
                 hour_range = int(rangespec)
             except ValueError as err:
-- 
cgit v1.2.3-2-gb3c3