Only look at relevant messages

autoflake.py

@@ -388,6 +388,10 @@ def any_complex_duplicate_key_cases(messages, source):
     """
     lines = source.split('\n')
     for message in messages:
+        if not isinstance(message,
+                          pyflakes.messages.MultiValueRepeatedKeyLiteral):
+            continue
+
         line = lines[message.lineno - 1]
         key = message.message_args[0]
 
@@ -399,6 +403,8 @@ def any_complex_duplicate_key_cases(messages, source):
         ):
             return True
 
+    return False
+
 
 def get_messages_by_line(messages):
     """Return dictionary that maps line number to message."""

test_autoflake.py

@@ -1420,6 +1420,44 @@ def test_end_to_end_with_remove_duplicate_keys_multiple_lines(self):
 -    'b': 7834,
      'a': 'wow',
 -    'b': 456,
+-    'c': 'hello',
+     'c': 'hello2',
+-    'b': 'hiya',
+     "b": 'hiya',
+ }
+ print(a)
+""", '\n'.join(process.communicate()[0].decode().split('\n')[3:]))
+
+    def test_end_to_end_with_remove_duplicate_keys_and_other_errors(self):
+        with temporary_file("""\
+from math import *
+print(sin(4))
+a = { # Hello
+    'b': 456,
+    'a': 123,
+    'b': 7834,
+    'a': 'wow',
+    'b': 456,
+    'c': 'hello',
+    'c': 'hello2',
+    'b': 'hiya',
+    "b": 'hiya',
+}
+print(a)
+""") as filename:
+            process = subprocess.Popen(AUTOFLAKE_COMMAND +
+                                       ['--remove-duplicate-keys',
+                                        filename],
+                                       stdout=subprocess.PIPE)
+            self.assertEqual("""\
+ from math import *
+ print(sin(4))
+ a = { # Hello
+-    'b': 456,
+-    'a': 123,
+-    'b': 7834,
+     'a': 'wow',
+-    'b': 456,
 -    'c': 'hello',
      'c': 'hello2',
 -    'b': 'hiya',