Address Stan's review

Author: vstinner

Lib/test/test_bytes.py

@@ -523,7 +523,7 @@ def test_fromhex(self):
         self.assertEqual(self.type2test.fromhex(a), b'\x12\x34')
 
         a = array.array('B', list(b'12345'))  # Missing second digit
-        with self.assertRaises(ValueError) as cm:
+        with self.assertRaises(ValueError):
             self.type2test.fromhex(a)
 
     def test_hex(self):

Objects/bytesobject.c

@@ -2705,7 +2705,6 @@ _PyBytes_FromHex(PyObject *string, int use_bytearray)
 
         bot = _PyLong_DigitValue[*str];
         if (bot >= 16) {
-            /* Check if we had a second digit */
             invalid_char = str - start;
             goto error;
         }