Unable to upload local files using Google Colab

I am getting error when trying to upload file to Google Colab.

Upload widget is only available when the cell has been executed in the current browser session.
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---------------------------------------------------------------------------
MessageError                              Traceback (most recent call last)
<ipython-input-18-1bbed4ac709e> in <module>()
     62 from keras.preprocessing import image
     63 
---> 64 uploaded = files.upload()
     65 
     66 for fn in uploaded.keys():

My Browser: Google Chrome, Version 83.0.4103.116 (Official Build) (64-bit) (on Windows 10)

I found two questions asked previously. See below. However, neither of the solutions worked for me.

Here's the image of my Chrome settings: enter image description here

1 answer

  • answered 2020-07-05 16:16 PeterV

    I found out what I was doing wrong. I was trying to execute bunch of scripts in same cell in Colab. When it came to the files.upload(), it was causing the issue. I moved that segment into another cell and executed it. It worked fine. Looks like Colab does not like it when you do this.

    Here's code snippet I was referring to:

    # RUNNING THE MODEL
    print('RUNNING THE MODEL')
    import numpy as np
    from google.colab import files
    from keras.preprocessing import image
    
    uploaded = files.upload()
    
    for fn in uploaded.keys():
     
      # predicting images
      path = '/content/' + fn
      img = image.load_img(path, target_size=(300, 300))
      x = image.img_to_array(img)
      x = np.expand_dims(x, axis=0)
    
      images = np.vstack([x])
      classes = model.predict(images, batch_size=10)
      print(classes[0])
      if classes[0]>0.5:
        print(fn + " is a human")
      else:
        print(fn + " is a horse")