Alternative to torch.cat() in version 1.0.0

jp_letendre · January 30, 2019, 12:56am

Hi,

I’m running some python code on Pycharm (version 3.6 of python) and I’m working on tensors with the torch library (version 1.0.0). Unfortunately my interpreter can’t find the torch.cat() function. I checked in the source code of torch, and that function is nowhere to be found in init.py. Has that function been deprecated in release 1.0.0 of Pytorch? Am I not looking at the right spot?

Thanks!

vmirly1 · January 30, 2019, 1:46am

torch.cat in this version 1.0.0:

>>> torch.__version__
'1.0.0'
>>> t1 = torch.randn(3, 5, 5)
>>> t2 = torch.randn(4, 5, 5)
>>> t = torch.cat([t1, t2], dim=0)
>>> t.shape
torch.Size([7, 5, 5])

Can you verify that you are using pytorch version 1.0.0? Sometimes when I use Jupyter notebook, the jupyter kernel is launched from a different python executable. Then I have seen that right after installing the newest pytorch, my jupyter was still showing the older version.

jp_letendre · January 30, 2019, 2:07am

I verified my PyCharm interpreter, it is indeed version 1.0.0 for pytorch. Interestingly, when running the same code on Jupyter, the interpreter manages to correctly import torch.cat from whatever source file it’s located in…

vmirly1 · January 30, 2019, 2:14am

I have some experience working with PyCharm. So, do you correctly specify the python interpreter in the configuration, like the image below?

jp_letendre · January 30, 2019, 2:17am

I think I do!

jp_letendre · January 30, 2019, 2:39am

So, PyCharm sends me a warning that he can’t find any reference for torch.cat inside __init__.py of torch, but when I run the code there is no execution error, and he performs torch.cat correctly…I don’t know why PyCharm fails to recognise it, but I can live with it!

Anyways, thanks for your help!