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OSError while loading sample weights

See original GitHub issue

While I was loading model with sample weights in Google Colab this exception occurred:

Using TensorFlow backend.
WARNING:tensorflow:From /usr/local/lib/python3.6/dist-packages/tensorflow/python/framework/op_def_library.py:263: colocate_with (from tensorflow.python.framework.ops) is deprecated and will be removed in a future version.
Instructions for updating:
Colocations handled automatically by placer.
---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
<ipython-input-5-913aee289ebe> in <module>()
      2 
      3 rdn = RDN(arch_params={'C':6, 'D':20, 'G':64, 'G0':64, 'x':2})
----> 4 rdn.model.load_weights('/content/image-super-resolution/weights/sample_weights/rdn-C6-D20-G64-G064-x2_div2k-e086.hdf5')
      5 
      6 sr_img = rdn.model.predict(lr_img)[0]

/usr/local/lib/python3.6/dist-packages/keras/engine/network.py in load_weights(self, filepath, by_name, skip_mismatch, reshape)
   1155         if h5py is None:
   1156             raise ImportError('`load_weights` requires h5py.')
-> 1157         with h5py.File(filepath, mode='r') as f:
   1158             if 'layer_names' not in f.attrs and 'model_weights' in f:
   1159                 f = f['model_weights']

/usr/local/lib/python3.6/dist-packages/h5py/_hl/files.py in __init__(self, name, mode, driver, libver, userblock_size, swmr, **kwds)
    310             with phil:
    311                 fapl = make_fapl(driver, libver, **kwds)
--> 312                 fid = make_fid(name, mode, userblock_size, fapl, swmr=swmr)
    313 
    314                 if swmr_support:

/usr/local/lib/python3.6/dist-packages/h5py/_hl/files.py in make_fid(name, mode, userblock_size, fapl, fcpl, swmr)
    140         if swmr and swmr_support:
    141             flags |= h5f.ACC_SWMR_READ
--> 142         fid = h5f.open(name, flags, fapl=fapl)
    143     elif mode == 'r+':
    144         fid = h5f.open(name, h5f.ACC_RDWR, fapl=fapl)

h5py/_objects.pyx in h5py._objects.with_phil.wrapper()

h5py/_objects.pyx in h5py._objects.with_phil.wrapper()

h5py/h5f.pyx in h5py.h5f.open()

OSError: Unable to open file (file signature not found)

I found that this error might mean that the file is corrupted. Or maybe it's the fault of Google Colab 🤔

Issue Analytics

State:
Created 4 years ago
Comments:6 (2 by maintainers)

Top GitHub Comments

2reactions

cesarandreslopezcommented, Mar 30, 2019

@pniedzwiedzinski furthermore, from the documentation

“The samples use an upscaling factor of two. The weights used to produced these images are available under sample_weights (see Additional Information). They are stored on git lfs. If you want to download the weights you need to run git lfs pull after cloning the repository.”

1reaction

pniedzwiedzinskicommented, Mar 30, 2019

Maybe this should be also mentioned in the installation section 🤔