NameError in TensorFlow tutorial while using the Retrained Model
<p>I'm following TensorFlow for Poets <a href="https://codelabs.developers.google.com/codelabs/tensorflow-for-poets/#5" rel="nofollow">tutorial</a>. paragraph about Using the Retrained Model. </p>

<p>When I'm trying to run Python file which provided in the tutorial </p>

<pre><code>python /tf_files/label_image.py /tf_files/flower_photos/daisy/21652746_cc379e0eea_m.jpg
</code></pre>

<p>Code of the file label_image.py</p>

<pre><code>import tensorflow as tf

# change this as you see fit
image_path = sys.argv[1]

# Read in the image_data
image_data = tf.gfile.FastGFile(image_path, 'rb').read()

# Loads label file, strips off carriage return
label_lines = [line.rstrip() for line 
                   in tf.gfile.GFile("/tf_files/retrained_labels.txt")]

# Unpersists graph from file
with tf.gfile.FastGFile("/tf_files/retrained_graph.pb", 'rb') as f:
    graph_def = tf.GraphDef()
    graph_def.ParseFromString(f.read())
    _ = tf.import_graph_def(graph_def, name='')

with tf.Session() as sess:
    # Feed the image_data as input to the graph and get first prediction
    softmax_tensor = sess.graph.get_tensor_by_name('final_result:0')

    predictions = sess.run(softmax_tensor, \
             {'DecodeJpeg/contents:0': image_data})

    # Sort to show labels of first prediction in order of confidence
    top_k = predictions[0].argsort()[-len(predictions[0]):][::-1]

    for node_id in top_k:
        human_string = label_lines[node_id]
        score = predictions[0][node_id]
        print('%s (score = %.5f)' % (human_string, score))
</code></pre>

<p>I got an error:</p>

<pre><code> File "/tf_files/label_image.py", line 4, in &lt;module&gt;
    image_path=sys.argv[1]
    NameError: name 'sys' is not defined
</code></pre>

<p>What I'm doing wrong? Or how to fix it? </p>

<p>Maybe you could try with <code>import sys</code> ?</p>

python tensorflow