From: Lele Gaifax <lele@metapensiero.it>
Date: Mon, 31 Oct 2022 07:54:36 +0000 (+0100)
Subject: Pacify mypy, explicitly return None if the range is not a discrete one
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=81d99cca361729872b763092e8c57a6e237230fb;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git

Pacify mypy, explicitly return None if the range is not a discrete one
---

diff --git a/lib/sqlalchemy/dialects/postgresql/ranges.py b/lib/sqlalchemy/dialects/postgresql/ranges.py
index ce260cac7a..9a05411c00 100644
--- a/lib/sqlalchemy/dialects/postgresql/ranges.py
+++ b/lib/sqlalchemy/dialects/postgresql/ranges.py
@@ -122,8 +122,10 @@ class Range(Generic[_T]):
 
         if isinstance(self.lower, int) or isinstance(self.upper, int):
             return 1
-        if isinstance(self.lower, date) or isinstance(self.upper, date):
+        elif isinstance(self.lower, date) or isinstance(self.upper, date):
             return timedelta(days=1)
+        else:
+            return None
 
     def _contained_by(self, other: Range) -> bool:
         "Determine whether this range is a contained by `other`."