Update to monitors and tutorial (tensorflow#11920)

* Update wide.md

Removing unnecessary slash

* Update monitors.py

Removed tf.learn.SessionRunHook in favor of tf.train.SessionRunHook.

* Update wide.md

Remove bad practice of sudo pip

* Update wide.md

Replace OS X with macOS

* Update bigquery_reader_ops.py

Fixed error in example code

* Update tensor_util.py

Spaced import statements according to PEP 8

* Update tensor_util_test.py

Spaced the import statements according to PEP 8

tensorflow/contrib/framework/python/framework/tensor_util.py

@@ -17,7 +17,9 @@
 from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function
+
 import numpy as np
+
 from tensorflow.python.framework import dtypes
 from tensorflow.python.framework import ops
 from tensorflow.python.framework import sparse_tensor

tensorflow/contrib/framework/python/framework/tensor_util_test.py

@@ -20,7 +20,9 @@
 from __future__ import print_function
 
 import re
+
 import numpy as np
+
 from tensorflow.contrib.framework.python.framework import tensor_util
 from tensorflow.contrib.framework.python.ops import variables as variables_lib2
 from tensorflow.python.framework import constant_op

tensorflow/contrib/learn/python/learn/monitors.py

@@ -44,14 +44,14 @@
 
 from tensorflow.contrib.framework import deprecated
 from tensorflow.contrib.framework.python.ops import variables as contrib_variables
-from tensorflow.contrib.learn.python.learn import session_run_hook
 from tensorflow.contrib.learn.python.learn.summary_writer_cache import SummaryWriterCache
 from tensorflow.core.framework.summary_pb2 import Summary
 from tensorflow.core.util.event_pb2 import SessionLog
 from tensorflow.python.estimator import estimator as core_estimator
 from tensorflow.python.framework import ops
 from tensorflow.python.platform import tf_logging as logging
 from tensorflow.python.training import saver as saver_lib
+from tensorflow.python.training import session_run_hook
 from tensorflow.python.training import summary_io
 from tensorflow.python.util import deprecation
 from tensorflow.python.util import tf_inspect

tensorflow/docs_src/tutorials/wide.md

@@ -24,13 +24,13 @@ To try the code for this tutorial:
         # Ubuntu/Linux 64-bit
         $ sudo apt-get install python-pip python-dev
 
-        # Mac OS X
+        # macOS
         $ sudo easy_install pip
         $ sudo easy_install --upgrade six
 
     b. Use `pip` to install pandas:
 
-        $ sudo pip install pandas
+        $ pip install -U pandas
 
     If you have trouble installing pandas, consult the
     [instructions](http://pandas.pydata.org/pandas-docs/stable/install.html)
@@ -127,7 +127,7 @@ Here's a list of columns available in the Census Income dataset:
 :                :             : individual.                       :
 | income         | Categorical | ">50K" or "<=50K", meaning        |
 :                :             : whether the person makes more     :
-:                :             : than \$50,000 annually.           :
+:                :             : than $50,000 annually.           :
 
 ## Converting Data into Tensors