1 files changed, 33 insertions, 0 deletions
diff --git a/Lib/lib2to3/fixes/fix_reduce.py b/Lib/lib2to3/fixes/fix_reduce.py
new file mode 100644
index 0000000..89fa2b4
--- /dev/null
+++ b/Lib/lib2to3/fixes/fix_reduce.py
@@ -0,0 +1,33 @@
+# Copyright 2008 Armin Ronacher.
+# Licensed to PSF under a Contributor Agreement.
+
+"""Fixer for reduce().
+
+Makes sure reduce() is imported from the functools module if reduce is
+used in that module.
+"""
+
+from .. import pytree
+from .. import fixer_base
+from ..fixer_util import Name, Attr, touch_import
+
+
+
+class FixReduce(fixer_base.BaseFix):
+
+    PATTERN = """
+    power< 'reduce'
+        trailer< '('
+            arglist< (
+                (not(argument<any '=' any>) any ','
+                 not(argument<any '=' any>) any) |
+                (not(argument<any '=' any>) any ','
+                 not(argument<any '=' any>) any ','
+                 not(argument<any '=' any>) any)
+            ) >
+        ')' >
+    >
+    """
+
+    def transform(self, node, results):
+        touch_import('functools', 'reduce', node)