1 files changed, 23 insertions, 0 deletions
diff --git a/Lib/lib2to3/fixes/fix_methodattrs.py b/Lib/lib2to3/fixes/fix_methodattrs.py
new file mode 100644
index 0000000..3d0d7d7
--- /dev/null
+++ b/Lib/lib2to3/fixes/fix_methodattrs.py
@@ -0,0 +1,23 @@
+"""Fix bound method attributes (method.im_? -> method.__?__).
+"""
+# Author: Christian Heimes
+
+# Local imports
+from . import basefix
+from .util import Name
+
+MAP = {
+    "im_func" : "__func__",
+    "im_self" : "__self__",
+    "im_class" : "__self__.__class__"
+    }
+
+class FixMethodattrs(basefix.BaseFix):
+    PATTERN = """
+    power< any+ trailer< '.' attr=('im_func' | 'im_self' | 'im_class') > any* >
+    """
+
+    def transform(self, node, results):
+        attr = results["attr"][0]
+        new = MAP[attr.value]
+        attr.replace(Name(new, prefix=attr.get_prefix()))