ModuleNotFoundError: No module named 'torch' about dcnv2_latest

[lucasjinreal]

@fabrizioschiano @Bavesh-B Be note don't messy with python or python3 which might be your virtual env or your system python.
So please check if it is the right interporator you want build with.

[lucasjinreal]

@fabrizioschiano If you install to your system path, using sudo, if you using anaconda, then you needn't to do that.

[fabrizioschiano]

I have the same problem. It is quite strange since if I run instead the repository https://github.com/lbin/DCNv2.git I don't have any problems doing the ./make.sh

I am using a virtualenvironment and if the environment is active and I do:

python -c "import torch; print(torch.__version__)"

I get (indeed)

1.9.1+cu102

@Bavesh-B , did you figure out how to solve this problem?

[fabrizioschiano]

I probably found a solution to the problem by looking into the make.sh file.

The make.sh of this repository looks like this:

#!/usr/bin/env bash
sudo rm *.so
sudo rm -r build/
sudo python3 setup.py build develop

while the make.sh of the other repo looks like this

#!/usr/bin/env bash
python setup.py build develop

What I just did is to remove the sudo from the make.sh file.

I think that this must be related to the fact that in the DCNv2_latest repo they assume you don't use a virtualenvironment maybe.

I hope this helps someone in the same situation. Let me know also if I did something wrong.

(also, I don't like doing sudo python3 ... to be honest)

[Bavesh-B]

Hey @fabrizioschiano ,
For me the problem was sudo because when I installed pytorch, I did not use sudo on the command. So in that case, there are 2 solutions. Either remove the sudo in the shell file and run or install pytorch again with sudo. Also, I have a question. Is the dcn_v2.git repository compatible for pytorch 1.9.1?

[fabrizioschiano]

Yes, exactly, the problem was the sudo for me too. I don't know if it is compatible, that's a good question actually!

What I assumed is that it is since before ending on this repository I was using the following:
https://github.com/lbin/DCNv2.git

This repository has a branch dedicated to pytorch_1.9

@Bavesh-B , are you also using a virtualenvironment or conda or similar?

[Bavesh-B]

No I am not using any environment. I am just using a virtual instance.

[fabrizioschiano]

@jinfagang , thanks for your comment. is there a particular reason why you needed a sudo in the make.sh file?