Does not work anymore on ArchLinux due dependency issues

[TheAifam5]

What kind of issue is this?

• PlatformIO Core.
  If you’ve found a bug, please provide an information below.

---

Configuration

Operating system: ArchLinux

PlatformIO Version (platformio --version): 4.1.0

Description of problem

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.

Steps to Reproduce

1. Install platformio from AUR and edit for 4.1.0 version
2. Run platformio

Actual Results

The 'marshmallow<3,>=2.20.5' distribution was not found and is required by platformio

Expected Results

More Linux distro friendly.

[TheAifam5]

For ArchLinux users I made a workaround, please look here:
https://aur.archlinux.org/packages/platformio/#comment-717511

[ivankravets]

Just create a Python virtual environment and forget about all problems. See http://docs.platformio.org/en/latest/installation.html#virtual-environment

[greyltc]

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 #3296 so it looks like probably the only problem is that this issue was closed prematurely!

[ivankravets]

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

[greyltc]

Thanks! Didn't realize it was solved and apologies for the noise

[ivankravets]

PlatformIO Core 4.2 is out! https://community.platformio.org/t/platformio-core-4-2/11980/2