What kind of issue is this?
Operating system: ArchLinux
PlatformIO Version (platformio --version): 4.1.0
Currently ArchLinux repo has python-marshmallow 2.20.1-3 and in testing python-marshmallow 3.2.2-1, which can be merged in the main repo, everything will obviously not work anymore.
The 'marshmallow<3,>=2.20.5' distribution was not found and is required by platformio
More Linux distro friendly.
For ArchLinux users I made a workaround, please look here:
https://aur.archlinux.org/packages/platformio/#comment-717511
Just create a Python virtual environment and forget about all problems. See http://docs.platformio.org/en/latest/installation.html#virtual-environment
This doesn't seem like an actual solution that warrants the issue being closed. It's a great workaround. Shouldn't this project strive to work with the latest stable versions of its dependencies?
What is it about about marshmallow beyond version 3 that breaks?
Looks like there have been 1083 commits to marshmallow since it was on a stable version 2.x. Would platformio see zero benefits from any of those commits?
EDIT: Just saw https://github.com/platformio/platformio-core/pull/3296 so it looks like probably the only problem is that this issue was closed prematurely!
We have fixed this issue in the latest development version. The PIO Core 4.1.1 is planned for release next week.
You can check it in https://github.com/platformio/platformio-core/blob/develop/setup.py#L36
Thanks! Didn't realize it was solved and apologies for the noise
PlatformIO Core 4.2 is out! https://community.platformio.org/t/platformio-core-4-2/11980/2
Most helpful comment
We have fixed this issue in the latest development version. The PIO Core 4.1.1 is planned for release next week.
You can check it in https://github.com/platformio/platformio-core/blob/develop/setup.py#L36