diff --git a/lint/lint.py b/lint/lint.py
index 200e446af0dcff..48e667acfce7a0 100644
--- a/lint/lint.py
+++ b/lint/lint.py
@@ -15,7 +15,7 @@
 from .. import localpaths
 
 from manifest.sourcefile import SourceFile
-from six import iteritems
+from six import iteritems, itervalues
 from six.moves import range
 
 here = os.path.abspath(os.path.split(__file__)[0])
@@ -408,7 +408,7 @@ def process_errors(path, errors):
         last = process_errors(path, errors) or last
 
         if not os.path.isdir(abs_path):
-            with open(abs_path) as f:
+            with open(abs_path, 'rb') as f:
                 errors = check_file_contents(repo_root, path, f)
                 last = process_errors(path, errors) or last
 
@@ -416,7 +416,7 @@ def process_errors(path, errors):
         output_error_count(error_count)
         if error_count:
             print(ERROR_MSG % (last[0], last[1], last[0], last[1]))
-    return sum(error_count.itervalues())
+    return sum(itervalues(error_count))
 
 path_lints = [check_path_length]
 file_lints = [check_regexp_line, check_parsed, check_python_ast]
diff --git a/lint/tests/test_lint.py b/lint/tests/test_lint.py
index 81475aa7df34df..ebca206c816140 100644
--- a/lint/tests/test_lint.py
+++ b/lint/tests/test_lint.py
@@ -65,7 +65,6 @@ def test_parse_whitelist():
     assert ignored == expected_ignored
 
 
-@pytest.mark.skipif(six.PY3, reason="lint.lint doesn't support Python 3")
 def test_lint_no_files(capsys):
     rv = lint(_dummy_repo, [], False)
     assert rv == 0
@@ -74,7 +73,6 @@ def test_lint_no_files(capsys):
     assert err == ""
 
 
-@pytest.mark.skipif(six.PY3, reason="lint.lint doesn't support Python 3")
 def test_lint_ignored_file(capsys):
     with _mock_lint("check_path") as mocked_check_path:
         with _mock_lint("check_file_contents") as mocked_check_file_contents:
@@ -87,7 +85,6 @@ def test_lint_ignored_file(capsys):
     assert err == ""
 
 
-@pytest.mark.skipif(six.PY3, reason="lint.lint doesn't support Python 3")
 def test_lint_not_existing_file(capsys):
     with _mock_lint("check_path") as mocked_check_path:
         with _mock_lint("check_file_contents") as mocked_check_file_contents:
@@ -102,7 +99,6 @@ def test_lint_not_existing_file(capsys):
     assert err == ""
 
 
-@pytest.mark.skipif(six.PY3, reason="lint.lint doesn't support Python 3")
 def test_lint_passing(capsys):
     with _mock_lint("check_path") as mocked_check_path:
         with _mock_lint("check_file_contents") as mocked_check_file_contents:
@@ -115,7 +111,6 @@ def test_lint_passing(capsys):
     assert err == ""
 
 
-@pytest.mark.skipif(six.PY3, reason="lint.lint doesn't support Python 3")
 def test_lint_failing(capsys):
     with _mock_lint("check_path") as mocked_check_path:
         with _mock_lint("check_file_contents") as mocked_check_file_contents:
@@ -129,7 +124,6 @@ def test_lint_failing(capsys):
     assert err == ""
 
 
-@pytest.mark.skipif(six.PY3, reason="lint.lint doesn't support Python 3")
 def test_lint_passing_and_failing(capsys):
     with _mock_lint("check_path") as mocked_check_path:
         with _mock_lint("check_file_contents") as mocked_check_file_contents: