Merge branch '0.23.x'

Cython/Compiler/Optimize.py

@@ -1739,7 +1739,7 @@ class EarlyReplaceBuiltinCalls(Visitor.EnvTransform):
         if len(args) <= 1:
             if len(args) == 1 and args[0].is_sequence_constructor:
                 args = args[0].args
-            if len(args) < 1:
+            if len(args) <= 1:
                 # leave this to Python
                 return node
 

tests/run/min_max_optimization.pyx

@@ -8,6 +8,16 @@ class loud_list(list):
 
 # max()
 
+def test_max1(x):
+    """
+    >>> test_max1([1, 2, 3])
+    3
+    >>> test_max1([2])
+    2
+    """
+    return max(x)
+
+
 @cython.test_assert_path_exists(
     '//PrintStatNode//CondExprNode')
 @cython.test_fail_if_path_exists(