From 5da255dc169aca6664fb3acda3c4ffbf1174d0e1 Mon Sep 17 00:00:00 2001 From: Nicco Kunzmann Date: Mon, 29 Sep 2025 13:25:35 +0100 Subject: [PATCH] refresh_interval > 0 Co-authored-by: Sashank --- src/icalendar/cal/calendar.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/icalendar/cal/calendar.py b/src/icalendar/cal/calendar.py index 3312fe9..0d8b599 100644 --- a/src/icalendar/cal/calendar.py +++ b/src/icalendar/cal/calendar.py @@ -495,7 +495,7 @@ Description: raise TypeError( "REFRESH-INTERVAL must be a positive timedelta or None (to delete it)." ) - if value is not None and value.total_seconds() < 0: + if value is not None and value.total_seconds() <= 0: raise ValueError("REFRESH-INTERVAL must be a positive timedelta.") del self.refresh_interval if value is not None: