Restoring ZRANGE desc for Redis < 6.2.0 (#1697)

2 files changed, 8 insertions, 0 deletions

diff --git a/redis/commands/core.py b/redis/commands/core.py
index 90997ff..67f1bfa 100644
--- a/redis/commands/core.py
+++ b/redis/commands/core.py
@@ -2520,6 +2520,13 @@ class CoreCommands:
         ``offset`` and ``num`` are specified, then return a slice of the range.
         Can't be provided when using ``bylex``.
         """
+        # Need to support ``desc`` also when using old redis version
+        # because it was supported in 3.5.3 (of redis-py)
+        if not byscore and not bylex and (offset is None and num is None) \
+                and desc:
+            return self.zrevrange(name, start, end, withscores,
+                                  score_cast_func)
+
         return self._zrange('ZRANGE', None, name, start, end, desc, byscore,
                             bylex, withscores, score_cast_func, offset, num)
 
diff --git a/tests/test_commands.py b/tests/test_commands.py
index 4991f89..330ba28 100644
--- a/tests/test_commands.py
+++ b/tests/test_commands.py
@@ -1867,6 +1867,7 @@ class TestRedisCommands:
         assert r.zrange('a', 0, 1) == [b'a1', b'a2']
         assert r.zrange('a', 1, 2) == [b'a2', b'a3']
         assert r.zrange('a', 0, 2) == [b'a1', b'a2', b'a3']
+        assert r.zrange('a', 0, 2, desc=True) == [b'a3', b'a2', b'a1']
 
         # withscores
         assert r.zrange('a', 0, 1, withscores=True) == \