Update Pillow dependency pin

[hugovk]

Description

As Pillow is an indirect dependency, remove the pin added in #1146.

python-pillow/Pillow#4528 was released in Pillow 7.1.2 yesterday: https://pillow.readthedocs.io/en/stable/releasenotes/7.1.2.html

Alternatively, you could keep the pin with:

Pillow!=7.1.0,!=7.1.1

or

Pillow>=7.1.2

Type of change

• Bug-fix (non-breaking change which fixes an issue)

References

How has this been tested?

• all tests pass with my change

Final checklist:

• My PR is the minimum possible work for the desired functionality
• [n/a] I have commented my code, particularly in hard-to-understand areas
• [n/a] I have made corresponding changes to the documentation
• [n/a] I have added tests that prove my fix is effective or that my feature works

[tlambert03]

Thanks @hugovk! I made the (incorrect) assumption that the next version was gonna be 7.2 (based on the 7.2.dev0 version I saw somewhere.). Since I'm fairly certain that a lot of napari functions will be broken if someone happens to end up with 7.1.0 or 7.1.1 (and so as to maintain backwargs compatibility), I think I'd prefer Pillow!=7.1.0,!=7.1.1. Would you mind updating this PR, and then I can merge it?

[hugovk]

Thanks @hugovk! I made the (incorrect) assumption that the next version was gonna be 7.2 (based on the 7.2.dev0 version I saw somewhere.).

You made the correct assumption! 7.2.0 would be the next scheduled quarterly release (July 2020) and 7.2.dev0 is in the master branch.

Because this was affecting quite a few projects, we made a 7.1.2 point release.

Since I'm fairly certain that a lot of napari functions will be broken if someone happens to end up with 7.1.0 or 7.1.1 (and so as to maintain backwards compatibility), I think I'd prefer Pillow!=7.1.0,!=7.1.1. Would you mind updating this PR, and then I can merge it?

Good idea, updated!

[tlambert03]

Thanks! and thanks for coming by to let us know! :)