About collision _label/scene_0110/collision_labels.npz in Dataset

[yanjh97]

Hi, I encountered an error as follows:

import numpy as np
data_root = '/media/wind/Share/DataSet/GraspNet1Billion'
collision_label = np.load(os.path.join(data_root, 'collision_label/scene_0110/collision_labels.npz'))
print(collision_label.files)
print(collision_label['arr_8'].shape)

Output:
['arr_0', 'arr_4', 'arr_5', 'arr_2', 'arr_3', 'arr_7', 'arr_1', 'arr_8', 'arr_6']
OSError Traceback (most recent call last)
in ()
3 collision_label = np.load(os.path.join(data_root, 'collision_label/scene_0110/collision_labels.npz'))
4 print(collision_label.files)
----> 5 print(collision_label['arr_8'].shape)

/home/wind/anaconda3/envs/pytorch160/lib/python3.7/site-packages/numpy/lib/npyio.py in getitem(self, key)
253 return format.read_array(bytes,
254 allow_pickle=self.allow_pickle,
--> 255 pickle_kwargs=self.pickle_kwargs)
256 else:
257 return self.zip.read(key)

/home/wind/anaconda3/envs/pytorch160/lib/python3.7/site-packages/numpy/lib/format.py in read_array(fp, allow_pickle, pickle_kwargs)
761 read_count = min(max_read_count, count - i)
762 read_size = int(read_count * dtype.itemsize)
--> 763 data = _read_bytes(fp, read_size, "array data")
764 array[i:i+read_count] = numpy.frombuffer(data, dtype=dtype,
765 count=read_count)

/home/wind/anaconda3/envs/pytorch160/lib/python3.7/site-packages/numpy/lib/format.py in _read_bytes(fp, size, error_template)
890 # done about that. note that regular files can't be non-blocking
891 try:
--> 892 r = fp.read(size - len(data))
893 data += r
894 if len(r) == 0 or len(data) == size:

/home/wind/anaconda3/envs/pytorch160/lib/python3.7/zipfile.py in read(self, n)
897 self._offset = 0
898 while n > 0 and not self._eof:
--> 899 data = self._read1(n)
900 if n < len(data):
901 self._readbuffer = data

/home/wind/anaconda3/envs/pytorch160/lib/python3.7/zipfile.py in _read1(self, n)
967 data += self._read2(n - len(data))
968 else:
--> 969 data = self._read2(n)
970
971 if self._compress_type == ZIP_STORED:

/home/wind/anaconda3/envs/pytorch160/lib/python3.7/zipfile.py in _read2(self, n)
997 n = min(n, self._compress_left)
998
--> 999 data = self._fileobj.read(n)
1000 self._compress_left -= len(data)
1001 if not data:

/home/wind/anaconda3/envs/pytorch160/lib/python3.7/zipfile.py in read(self, n)
740 "Close the writing handle before trying to read.")
741 self._file.seek(self._pos)
--> 742 data = self._file.read(n)
743 self._pos = self._file.tell()
744 return data

OSError: [Errno 5] Input/output error

[chenxi-wang]

Hi, does this error occur on other files either? Maybe you can check whether the file is complete.

[yanjh97]

No, this is the only one. And 'arr_0' ~ 'arr_7' in this file are normal.

[chenxi-wang]

I had a try and did not see this error. Maybe you can check whether there is something wrong when downloading.

[yanjh97]

OK. Thanks for your reply.