Some pylint cleanups.

3 files changed, 9 insertions, 5 deletions

diff --git a/coverage/backward.py b/coverage/backward.py
index 1217e9e..c363f21 100644
--- a/coverage/backward.py
+++ b/coverage/backward.py
@@ -75,7 +75,7 @@ except ImportError:
 # Python 3.2 provides `tokenize.open`, the best way to open source files.
 try:
     import tokenize
-    open_source = tokenize.open
+    open_source = tokenize.open     # pylint: disable=E1101
 except AttributeError:
     def open_source(fname):
         """Open a source file the best way."""
diff --git a/coverage/results.py b/coverage/results.py
index 6cc49cd..a7ec0fd 100644
--- a/coverage/results.py
+++ b/coverage/results.py
@@ -230,4 +230,4 @@ class Numbers(object):
         # Implementing 0+Numbers allows us to sum() a list of Numbers.
         if other == 0:
             return self
-        raise NotImplemented
+        return NotImplemented
diff --git a/test/test_testing.py b/test/test_testing.py
index 66a4093..2461a08 100644
--- a/test/test_testing.py
+++ b/test/test_testing.py
@@ -96,6 +96,10 @@ class TestingTest(TestCase):
 class CoverageTestTest(CoverageTest):
     """Test the methods in `CoverageTest`."""
 
+    def file_text(self, fname):
+        """Return the text read from a file."""
+        return open(fname, "rb").read().decode('ascii')
+
     def test_make_file(self):
         # A simple file.
         self.make_file("fooey.boo", "Hello there")
@@ -112,8 +116,8 @@ class CoverageTestTest(CoverageTest):
 
     def test_make_file_newline(self):
         self.make_file("unix.txt", "Hello\n")
-        self.assertEqual(open("unix.txt", "rb").read().decode('ascii'), "Hello\n")
+        self.assertEqual(self.file_text("unix.txt"), "Hello\n")
         self.make_file("dos.txt", "Hello\n", newline="\r\n")
-        self.assertEqual(open("dos.txt", "rb").read().decode('ascii'), "Hello\r\n")
+        self.assertEqual(self.file_text("dos.txt"), "Hello\r\n")
         self.make_file("mac.txt", "Hello\n", newline="\r")
-        self.assertEqual(open("mac.txt", "rb").read().decode('ascii'), "Hello\r")
+        self.assertEqual(self.file_text("mac.txt"), "Hello\r")