Fix deprecated torch.Tensor.nonzero usage

[mberr]

Closes #79

[codecov]

Codecov Report

Merging #86 into master will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master      #86   +/-   ##
=======================================
  Coverage   69.47%   69.47%           
=======================================
  Files          91       91           
  Lines        5549     5549           
  Branches      677      677           
=======================================
  Hits         3855     3855           
  Misses       1498     1498           
  Partials      196      196           

Impacted Files	Coverage Δ
src/pykeen/evaluation/evaluator.py	67.42% <100.00%> (ø)
src/pykeen/training/lcwa.py	34.17% <100.00%> (ø)
src/pykeen/version.py	75.00% <100.00%> (ø)

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[cthoyt]

@mberr should we add multiple test environments on travis CI for different versions of PyTorch (1.6, 1.7?)

[mberr]

@mberr should we add multiple test environments on travis CI for different versions of PyTorch (1.6, 1.7?)

If you want to maintain compatibility, we should.

However, we could also only (guarantee to) support the latest version.

[cthoyt]

@mberr i think just supporting the most recent version is fine until we see lots of people using it in their papers :)

[lvermue]

👍

[cthoyt]

Gucci https://www.youtube.com/watch?v=6WJFjXtHcy4