title: NameError: name 'path' is not defined
body: <p>I tried to solve the problem by writing the following code but no luck.</p>
  <pre class="lang-py prettyprint-override"><code>with detection_graph.as_default():
      od_graph_def = tf.GraphDef()
  with tf.gfile.GFile(path, 'r') as fid:
      serialized_graph = fid.read()
  </code></pre>
  <p>Then I saw an error like this</p>
  <pre><code>NameError: name 'path' is not defined
  </code></pre>
  <p>How can I fix it?</p>