This does not seem to be an issue with the installation path. Could you check the PyTorch version installed in the Anaconda environment that Topaz is installed in? This can simply be done by entering the Anaconda environment and using the command conda list. The module should be listed as “pytorch”.
If the PyTorch version is less than 1.3.0, try updating PyTorch to the latest version. The wrapper should work for versions >= 1.0.0 but has been mainly tested on versions >= 1.3.0.