Thanks for the report.
Anyone else able to reproduce weirdo-mouse coordinates on OSX Sierra/High
Sierra?
brew upgrade sdl sdl_image sdl_mixer sdl_ttf portmidi
python3.6 -m venv anenv
. ./anenv/bin/activate
pip install https://github.com/pygame/pygame/archive/master.zip
wget
https://gist.githubusercontent.com/illume/b87911469c4e59db387defa09118fff3/raw/b07cae540d069a87639e103ab6f6f5b631d035be/weirdomouse.py
python weirdomouse.py
Close to this top left: wrote:
> Last night at the London Python Dojo I was working with a couple of Pygame
> newbies on a little snow game (https://github.com/lordmauve/snowgame)
> when we came across this bug on Dario's Mac:
>
> https://github.com/pygame/pygame/issues/380
>
> This is an awful bug for beginners. It really looked so much like we had
> done something wrong, storing the mouse coordinates wrongly, because the
> lines we were dragging were starting from the last line, not the position
> of the mouse at mouse down. We checked over our code several times before
> realising that it worked on one of the other Macs, so something must be up
> with Pygame.
>
> I was going to ask Dario to check a Pygame 1.9.4 pre-release but there are
> no wheels on PyPI. It would be great if we could get wheels onto PyPI so
> that we can start testing on more systems. pip doesn't consider pre-release
> versions for installation unless you specify --pre on the command line so
> this wouldn't interfere with getting the stable version normally.
>
> Dan
>