torchvision - ImportError: No module named torchvision

https://pypi.org/project/torchvision/

image and video datasets and models for torch deep learning

The torchvision package consists of popular datasets, model architectures, and common image transformations for computer vision.

1. Installation

https://pytorch.org/get-started/locally/

The following is the corresponding torchvision versions and supported Python versions.

Anaconda:

conda install torchvision -c pytorch

pip:

pip install torchvision

From source:

python setup.py install

2. torchvision

https://pytorch.org/vision/stable/index.html

This library is part of the PyTorch project. PyTorch is an open source machine learning framework.

3. ImportError: No module named torchvision

yongqiang@strong-sys:~$ python
Python 2.7.12 (default, Dec  4 2017, 14:50:18) 
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import torch
>>> 
>>> import torchvision
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named torchvision
>>> 
>>> exit()
yongqiang@strong-sys:~$
yongqiang@strong-sys:~$ python
Python 2.7.12 (default, Dec  4 2017, 14:50:18) 
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import torch
>>> 
>>> import torchvision
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named torchvision
>>> 
>>> exit()
yongqiang@strong-sys:~$

4. sudo pip install torchvision

yongqiang@strong-sys:~$ python
Python 2.7.12 (default, Dec  4 2017, 14:50:18) 
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import torch
>>> 
>>> import torchvision
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named torchvision
>>> 
>>> exit()
yongqiang@strong-sys:~$ 
yongqiang@strong-sys:~$ pip install torchvision
Collecting torchvision
  Downloading https://files.pythonhosted.org/packages/ca/0d/f00b2885711e08bd71242ebe7b96561e6f6d01fdb4b9dcf4d37e2e13c5e1/torchvision-0.2.1-py2.py3-none-any.whl (54kB)
    100% |████████████████████████████████| 61kB 402kB/s 
Collecting pillow>=4.1.1 (from torchvision)
  Downloading https://files.pythonhosted.org/packages/9a/f6/3b3c82c5c75cae471e02fb584136168d732e17ae9db2d21c5dc82f9790f8/Pillow-5.3.0-cp27-cp27mu-manylinux1_x86_64.whl (2.0MB)
    100% |████████████████████████████████| 2.0MB 2.9MB/s 
Requirement already satisfied: torch in /usr/local/lib/python2.7/dist-packages (from torchvision) (1.0.0a0+46ef2b2)
Requirement already satisfied: six in /usr/local/lib/python2.7/dist-packages (from torchvision) (1.11.0)
Requirement already satisfied: numpy in /usr/local/lib/python2.7/dist-packages (from torchvision) (1.15.3)
Installing collected packages: pillow, torchvision
Could not install packages due to an EnvironmentError: [Errno 13] 权限不够: '/usr/local/lib/python2.7/dist-packages/PIL'
Consider using the `--user` option or check the permissions.

yongqiang@strong-sys:~$ 
yongqiang@strong-sys:~$ sudo pip install torchvision
[sudo] yongqiang 的密码： 
The directory '/home/yongqiang/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/yongqiang/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Collecting torchvision
  Downloading https://files.pythonhosted.org/packages/ca/0d/f00b2885711e08bd71242ebe7b96561e6f6d01fdb4b9dcf4d37e2e13c5e1/torchvision-0.2.1-py2.py3-none-any.whl (54kB)
    100% |████████████████████████████████| 61kB 413kB/s 
Collecting pillow>=4.1.1 (from torchvision)
  Downloading https://files.pythonhosted.org/packages/9a/f6/3b3c82c5c75cae471e02fb584136168d732e17ae9db2d21c5dc82f9790f8/Pillow-5.3.0-cp27-cp27mu-manylinux1_x86_64.whl (2.0MB)
    100% |████████████████████████████████| 2.0MB 1.4MB/s 
Requirement already satisfied: torch in /usr/local/lib/python2.7/dist-packages (from torchvision) (1.0.0a0+46ef2b2)
Requirement already satisfied: six in /usr/local/lib/python2.7/dist-packages (from torchvision) (1.11.0)
Requirement already satisfied: numpy in /usr/local/lib/python2.7/dist-packages (from torchvision) (1.15.3)
Installing collected packages: pillow, torchvision
Successfully installed pillow-5.3.0 torchvision-0.2.1
yongqiang@strong-sys:~$ 
yongqiang@strong-sys:~$ 
yongqiang@strong-sys:~$ 
yongqiang@strong-sys:~$ python
Python 2.7.12 (default, Dec  4 2017, 14:50:18) 
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import torchvision
>>> 
>>> exit()
yongqiang@strong-sys:~$ 

References

[1] Yongqiang Cheng, https://yongqiang.blog.csdn.net/