Add a human-readable Tensor.__repr__(), and improve TensorShape.__str__().

The repr replaces the default Python representation for an object with
information about the Tensor's name, shape and dtype. TensorShape's
new str() is a more compact representation that makes it easier to
tell, at a glance, what the shape represents.

For example:

    print repr(tf.placeholder(tf.qint32, shape=(32, None, 2), name="c"))
    # ==> <tf.Tensor 'c:0' shape=(32, ?, 2) dtype=qint32>

Fixes #460.
Change: 110268564

1 files changed, 1 insertions, 1 deletions

diff --git a/tensorflow/python/kernel_tests/unpack_op_test.py b/tensorflow/python/kernel_tests/unpack_op_test.py
index 47ed9e617c..621c717617 100644
--- a/tensorflow/python/kernel_tests/unpack_op_test.py
+++ b/tensorflow/python/kernel_tests/unpack_op_test.py
@@ -65,7 +65,7 @@ class UnpackOpTest(tf.test.TestCase):
   def testCannotInferNum(self):
     x = tf.placeholder(np.float32)
     with self.assertRaisesRegexp(
-        ValueError, r'Cannot infer num from shape TensorShape\(None\)'):
+        ValueError, r'Cannot infer num from shape <unknown>'):
       tf.unpack(x)