i.MX Machine Learning demo python script download Error

[Ryo_Aoki]

Hi NXP.

I'm trying to run a machine learning demo.(i.MX Machine Learning User's Guide 11.2 TensorFlow Lite Demos for i.MX 93)

When I run $ python3 download_models.py, an error occurs and I cannot run it.

I think the cause is that one of the URLs is 404 and cannot be connected.

(The python file says this: url = "https://drive.google.com/uc?export=download&confirm=yTib&id=1VHM41B8bSr07loNtHlTbXr89670w3H9W")

This phenomenon occurs in my Linux 6.1.22_2.0.0 environment.

And since the contents of download_models.py have not changed on Linux 6.1.36_2.1.0, the same problem should occur.

I would like the link to be restored or the python file to be modified.

Attached is the log when running the python file.

Download file from https://drive.google.com/uc?export=download&confirm=yTib&id=1VHM41B8bSr07loNtHlTbXr89670w3H9W
Traceback (most recent call last):
File "/usr/lib/python3.11/tarfile.py", line 1705, in gzopen
t = cls.taropen(name, mode, fileobj, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/tarfile.py", line 1682, in taropen
return cls(name, mode, fileobj, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/tarfile.py", line 1542, in __init__
self.firstmember = self.next()
^^^^^^^^^^^
File "/usr/lib/python3.11/tarfile.py", line 2379, in next
raise e
File "/usr/lib/python3.11/tarfile.py", line 2352, in next
tarinfo = self.tarinfo.fromtarfile(self)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/tarfile.py", line 1122, in fromtarfile
buf = tarfile.fileobj.read(BLOCKSIZE)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/gzip.py", line 301, in read
return self._buffer.read(size)
^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/_compression.py", line 68, in readinto
data = self.read(len(byte_view))
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/gzip.py", line 499, in read
if not self._read_gzip_header():
^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/gzip.py", line 468, in _read_gzip_header
last_mtime = _read_gzip_header(self._fp)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/gzip.py", line 428, in _read_gzip_header
raise BadGzipFile('Not a gzipped file (%r)' % magic)
gzip.BadGzipFile: Not a gzipped file (b'<h')

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/usr/bin/eiq-examples-git/download_models.py", line 98, in <module>
download_all_models(model_dir, vela_dir)
File "/usr/bin/eiq-examples-git/download_models.py", line 86, in download_all_models
decompress(path, model_dir)
File "/usr/bin/eiq-examples-git/download_models.py", line 28, in decompress
tar = tarfile.open(path, "r:gz")
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/tarfile.py", line 1652, in open
return func(name, filemode, fileobj, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/tarfile.py", line 1709, in gzopen
raise ReadError("not a gzip file") from e
tarfile.ReadError: not a gzip file

[Dhruvit]

Hi @Ryo_Aoki,

I hope you are doing well

Yes, you are right. The file is not there. I asked the developers about this situation. We received a response from them that, the customer can pass the models.py with their model since they are not able to provide those files. They added that they would change the section in the user guide.

I hope this information helps you.

Thanks & Regards,

Dhruvit Vasavada