What's Changed
* Add None type hints by singiamtel in https://github.com/alisw/alibuild/pull/903
* Disable PEP8 test by singiamtel in https://github.com/alisw/alibuild/pull/904
* Fix background color in mobile by singiamtel in https://github.com/alisw/alibuild/pull/905
* Remove python2.7 test by singiamtel in https://github.com/alisw/alibuild/pull/908
* Test more macOS python versions by singiamtel in https://github.com/alisw/alibuild/pull/909
* Fix comparisons and clean imports by singiamtel in https://github.com/alisw/alibuild/pull/907
* Fix shellcheck complaint by singiamtel in https://github.com/alisw/alibuild/pull/912
* Don't restrict boto3 as much by singiamtel in https://github.com/alisw/alibuild/pull/913
**Full Changelog**: https://github.com/alisw/alibuild/compare/v1.17.15...v1.17.16