title: TypeError: can only concatenate str (not "numpy.uint8") to str
body: <p>when i run this code i get error</p>
  
  <pre><code>    import tensorflow as tf
  from tensorflow import keras
  import numpy as np
  import matplotlib.pyplot as plt
  
  data = keras.datasets.fashion_mnist
  (train_images, train_labels), (test_images, test_labels) = data.load_data()
  
  train_images = train_images/255.0
  test_images = test_images/255.0
  
  class_names = ['T-shirt/top', 'Trouser', 'Pullover', 'Dress', "Coat", 'Sandal', 'shirt', 'Sneaker', 'Bag', 'Ankle boot']
  
  model = keras.Sequential([
  
      keras.layers.Flatten(input_shape=(28,28)),
      keras.layers.Dense(128, activation='relu'),
      keras.layers.Dense(10, activation='softmax')
      ])
  
  model.compile(optimizer='adam', loss='sparse_categorical_crossentropy', metrics=['accuracy'])
  
  model.fit(train_images, train_labels, epochs=5)
  
  test_loss, test_acc = model.evaluate(test_images, test_labels)
  print('Test accuracy : ', test_acc)
  
  prediction = model.predict(test_images)
  
  for i  in range(5):
      plt.grid(False)
      plt.imshow(test_images[i], cmap=plt.cm.binary)
      plt.xlabel("Actual : " + test_labels[i])
      plt.title("Prediction : ",class_names[np.argmax(prediction[i])])
      plt.show()
  </code></pre>
  
  <p><strong>Traceback (most recent call last):
    File "C:/Users/dwark/PycharmProjects/test/neural network 01.py", line 33, in 
      plt.xlabel("Actual : " + test_labels[i])
  TypeError: can only concatenate str (not "numpy.uint8") to str</strong></p>