trying to run the MNIST.ipynb tutorial with Python3.7:
one or both of the MNIST lmbd dbs not found!!
Failed to download dataset. Please download it manually from http://download.caffe2.ai/databases/mnist-lmdb.zip
Unzip it and place the two database folders here: /home/shalijiang/caffe2_notebooks/tutorial_data/mnist
---------------------------------------------------------------------------
ModuleNotFoundError Traceback (most recent call last)
<ipython-input-5-f2eb48a717a5> in <module>
42 print("Failed to download dataset. Please download it manually from {}".format(db_url))
43 print("Unzip it and place the two database folders here: {}".format(data_folder))
---> 44 raise ex
45
46 # Clean up statistics from any old runs
<ipython-input-5-f2eb48a717a5> in <module>
38 db_url = "http://download.caffe2.ai/databases/mnist-lmdb.zip"
39 try:
---> 40 DownloadResource(db_url, data_folder)
41 except Exception as ex:
42 print("Failed to download dataset. Please download it manually from {}".format(db_url))
<ipython-input-5-f2eb48a717a5> in DownloadResource(url, path)
2 def DownloadResource(url, path):
3 '''Downloads resources from s3 by url and unzips them to the provided path'''
----> 4 import requests, zipfile, StringIO
5 # import io as StringIO
6 print("Downloading... {} to {}".format(url, path))
ModuleNotFoundError: No module named 'StringIO'
I can simply change import StringIO to import io as StringIO, then
one or both of the MNIST lmbd dbs not found!!
Downloading... http://download.caffe2.ai/databases/mnist-lmdb.zip to /home/shalijiang/caffe2_notebooks/tutorial_data/mnist
Failed to download dataset. Please download it manually from http://download.caffe2.ai/databases/mnist-lmdb.zip
Unzip it and place the two database folders here: /home/shalijiang/caffe2_notebooks/tutorial_data/mnist
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-6-d7998938753f> in <module>
42 print("Failed to download dataset. Please download it manually from {}".format(db_url))
43 print("Unzip it and place the two database folders here: {}".format(data_folder))
---> 44 raise ex
45
46 # Clean up statistics from any old runs
<ipython-input-6-d7998938753f> in <module>
38 db_url = "http://download.caffe2.ai/databases/mnist-lmdb.zip"
39 try:
---> 40 DownloadResource(db_url, data_folder)
41 except Exception as ex:
42 print("Failed to download dataset. Please download it manually from {}".format(db_url))
<ipython-input-6-d7998938753f> in DownloadResource(url, path)
6 print("Downloading... {} to {}".format(url, path))
7 r = requests.get(url, stream=True)
----> 8 z = zipfile.ZipFile(StringIO.StringIO(r.content))
9 z.extractall(path)
10 print("Completed download and extraction.")
TypeError: initial_value must be str or None, not bytes
Seems this can be further fixed by replacing
z = zipfile.ZipFile(StringIO.StringIO(r.content))
by
z = zipfile.ZipFile(io.BytesIO(r.content))
trying to run the MNIST.ipynb tutorial with Python3.7:
I can simply change
import StringIO
toimport io as StringIO
, thenSeems this can be further fixed by replacing
z = zipfile.ZipFile(StringIO.StringIO(r.content))
byz = zipfile.ZipFile(io.BytesIO(r.content))
is this right?