Restrict CuPy to 6

[jakirkham]

As we have not yet tested CuPy 7, restrict cuDF usage to CuPy 6 for now.

[jakirkham]

cc @kkraus14 @rlratzel

[beckernick]

This will only be enforced at the time of cuDF installation, correct? I.e., is it correct that I could still install CuPy 7 afterwards if need be?

[kkraus14]

This will only be enforced at the time of cuDF installation, correct? I.e., is it correct that I could still install CuPy 7 afterwards if need be?

It will act as a constraint if you conda install in general. I believe it's possible to override the constraint though.

[jakirkham]

This will only be enforced at the time of cuDF installation, correct? I.e., is it correct that I could still install CuPy 7 afterwards if need be?

It would need to be forced, but yeah you could override.

[beckernick]

That's fine with me 👍

[jakirkham]

Thanks Ray! 😄

[codecov]

Codecov Report

Merging #3539 into branch-0.11 will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff              @@
##           branch-0.11    #3539   +/-   ##
============================================
  Coverage        87.38%   87.38%           
============================================
  Files               49       49           
  Lines             9376     9376           
============================================
  Hits              8193     8193           
  Misses            1183     1183

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[jakirkham]

Looks like this is ready to merge. 🙂

[jakirkham]

Thanks @harrism! 😄