$ python --version
Python 3.8.10

$ vpype pixelize --help

Warning: entry point could not be loaded. Contact its author for help.

Traceback (most recent call last):
File "/home/pythagorean/.local/lib/python3.8/site-packages/vpype_cli/cli.py", line 204, in cli
cast(click.Group, ctx.command).add_command(entry_point.load())
File "/home/pythagorean/.local/lib/python3.8/site-packages/pkg_resources/init.py", line 2450, in load
return self.resolve()
File "/home/pythagorean/.local/lib/python3.8/site-packages/pkg_resources/init.py", line 2456, in resolve
module = import(self.module_name, fromlist=['name'], level=0)
File "/home/pythagorean/.local/lib/python3.8/site-packages/shiboken2/files.dir/shibokensupport/feature.py", line 142, in _import
return original_import(name, *args, **kwargs)
File "/home/pythagorean/.local/lib/python3.8/site-packages/pixelart/pixelart.py", line 113
up := cur_pixel.move((0, -1)),
^
SyntaxError: invalid syntax