Annotations no longer redefine names (#619)

2 files changed, 12 insertions, 0 deletions

diff --git a/pyflakes/checker.py b/pyflakes/checker.py
index 01bcf50..48d3841 100644
--- a/pyflakes/checker.py
+++ b/pyflakes/checker.py
@@ -548,6 +548,10 @@ class Annotation(Binding):
     annotation.
     """
 
+    def redefines(self, other):
+        """An Annotation doesn't define any name, so it cannot redefine one."""
+        return False
+
 
 class FunctionDefinition(Definition):
     pass
diff --git a/pyflakes/test/test_type_annotations.py b/pyflakes/test/test_type_annotations.py
index 9e7ca14..f131034 100644
--- a/pyflakes/test/test_type_annotations.py
+++ b/pyflakes/test/test_type_annotations.py
@@ -284,6 +284,14 @@ class TestTypeAnnotations(TestCase):
         ''', m.ForwardAnnotationSyntaxError)
 
     @skipIf(version_info < (3, 6), 'new in Python 3.6')
+    def test_annotating_an_import(self):
+        self.flakes('''
+            from a import b, c
+            b: c
+            print(b)
+        ''')
+
+    @skipIf(version_info < (3, 6), 'new in Python 3.6')
     def test_unused_annotation(self):
         # Unused annotations are fine in module and class scope
         self.flakes('''