Skip tests that require cuDF/UCX-Py, when not installed

[pentschev]

No description provided.

[jakirkham]

Looks like black and flake8 are failing

https://gpuci.gpuopenanalytics.com/blue/organizations/jenkins/rapidsai%2Fgpuci%2Fdask-cuda%2Fprb%2Fdask-cuda-style/detail/dask-cuda-style/588/pipeline

[pentschev]

Pretty bizarre, I fixed some issues, but in the current build where style checking passed, formatting is still failing https://gpuci.gpuopenanalytics.com/job/rapidsai/job/gpuci/job/dask-cuda/job/prb/job/dask-cuda-style/589/display/redirect. What's even more bizarre is that my local black report is very different from that of CI, and flake8 reports nothing locally.

[jakirkham]

We pin the flake8 and black versions ( rapidsai/integration#74 ). So it may be discrepancies between the latest versions and what we have pinned.

[codecov-io]

Codecov Report

Merging #411 into branch-0.16 will not change coverage.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##           branch-0.16     #411   +/-   ##
============================================
  Coverage        56.86%   56.86%           
============================================
  Files               19       19           
  Lines             1442     1442           
============================================
  Hits               820      820           
  Misses             622      622           

Impacted Files	Coverage Δ
dask_cuda/explicit_comms/dataframe_shuffle.py	95.52% <ø> (ø)
dask_cuda/local_cuda_cluster.py	82.95% <0.00%> (ø)
dask_cuda/utils.py	87.31% <0.00%> (ø)

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[pentschev]

Aha! That makes so much more sense @jakirkham . I now fixed black formatting, but CI still complains about flake8, even though it doesn't tell us anything about the error, and locally I installed the same version as CI https://github.com/rapidsai/integration/pull/74/files#diff-16b61a6b2eb5b806543058cb7d3fca83R59 but don't see any errors.

One more interesting thing is isort complains about an error, and if you fix that, then black complains about that and fixes that, which in turn fails for isort. We really need to keep ordering consistent. :)

[jakirkham]

Yeah I was running into an error like this before as well. Had opened PR ( #350 ) to address it, but I don't think we settled on exactly how we want to resolve the conflict between these tools.

[jakirkham]

rerun tests

[jakirkham]

rerun tests

[jakirkham]

Thanks Peter! 😄