title: WARNING:tensorflow:AutoGraph could not transform <function format_example at ...> and will run it as-is
body: <p>My question is related to <a href="https://github.com/tensorflow/tensorflow/issues/36921" rel="noreferrer">this</a> and <a href="https://github.com/tensorflow/tensorflow/issues/35101" rel="noreferrer">this</a> one here. I am using PyCharm on Windows and Python 3.7.8 and Tensorflow 2.2.0:</p>
  <pre><code>print (sys.version)
  3.7.8 (tags/v3.7.8:4b47a5b6ba, Jun 28 2020, 08:53:46) [MSC v.1916 64 bit (AMD64)]
  
  print(tf.__version__)
  2.2.0
  </code></pre>
  <p>When I run this code from this <a href="https://www.tensorflow.org/tutorials/images/transfer_learning_with_hub" rel="noreferrer">colab</a> tutorial:</p>
  <pre><code>import os
  
  import numpy as np
  
  import matplotlib.pyplot as plt
  import tensorflow as tf
  import tensorflow_datasets as tfds
  
  (raw_train, raw_validation, raw_test), metadata = tfds.load(
      'cats_vs_dogs',
      split=['train[:80%]', 'train[80%:90%]', 'train[90%:]'],
      with_info=True,
      as_supervised=True,
  )
  IMG_SIZE = 160 # All images will be resized to 160x160
  
  def format_example(image, label):
    image = tf.cast(image, tf.float32)
    image = (image/127.5) - 1
    image = tf.image.resize(image, (IMG_SIZE, IMG_SIZE))
    return image, label
  </code></pre>
  <p>and then try to run this line:</p>
  <pre><code>train = raw_train.map(format_example)
  </code></pre>
  <p>I get the WARNING:</p>
  <pre><code>WARNING:tensorflow:AutoGraph could not transform &lt;function format_example at 0x00000265A2DB4E58&gt; and will run it as-is.
  Please report this to the TensorFlow team. When filing the bug, set the verbosity to 10 (on Linux, `export AUTOGRAPH_VERBOSITY=10`) and attach the full output.
  Cause: Unable to locate the source code of &lt;function format_example at 0x00000265A2DB4E58&gt;. Note that functions defined in certain environments, like the interactive Python shell do not expose their source code. If that is the case, you should to define them in a .py source file. If you are certain the code is graph-compatible, wrap the call using @tf.autograph.do_not_convert. Original error: could not get source code
  To silence this warning, decorate the function with @tf.autograph.experimental.do_not_convert
  </code></pre>
  <p>I only get this WARNING when using PyCharm on my local pc. When I run it in colab no problems. What is the issue here and is this relevant or can I ignore the WARNING?</p>