use assert[Not]In where appropriate
A patch from Dave Malcolm.
diff --git a/Lib/test/test_unicodedata.py b/Lib/test/test_unicodedata.py
index 61e49a5..2ecb09e 100644
--- a/Lib/test/test_unicodedata.py
+++ b/Lib/test/test_unicodedata.py
@@ -220,7 +220,7 @@
self.assertEqual(popen.returncode, 1)
error = "SyntaxError: (unicode error) \\N escapes not supported " \
"(can't load unicodedata module)"
- self.assertTrue(error in popen.stderr.read().decode("ascii"))
+ self.assertIn(error, popen.stderr.read().decode("ascii"))
def test_decimal_numeric_consistent(self):
# Test that decimal and numeric are consistent,