🔒 Mesa installed but getting ModuleNotFoundError

[rancid tinsel]

I have installed mesa using uv but i get ModuleNotFoundError whenever i try to run the code or check it, as seen in the screenshot. Expected output from running uv run mesa check should be All checks passed!

[karmic rivet]

@rancid tinsel

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[rancid tinsel]

sorry if i have asked in the wrong place

[worn crown]

no it's the right place

[rancid tinsel]

thanks

[worn crown]

did you run uv sync?

[rancid tinsel]

i have yes

no change

[worn crown]

where did you get that mesa command from? is it a local package?

(I installed the same packages, and have no "mesa check" command)

[rancid tinsel]

uv run X check should check if a package is properly installed. i originally had issue when i tried to run my project which imports mesa and i got the error ModuleNotFoundError: No module named 'mesa.visualization.ModularVisualization'

[worn crown]

"uv run" should run an installed command... I never heard about this check command. Especially as "uv run mesa check" basically means, that the command you're running is "mesa check" ... meaning you run "mesa" with argument "check" ... which I'm pretty sure has no longer anything to do with uv

do you have any other files locally?

[rancid tinsel]

i see. my bad then. i still have the error where if i run my project then it doesn't run and gives me the error described here

[wheat wagon]

I found this issue: https://github.com/projectmesa/mesa/issues/2331#issuecomment-2588080316

[wheat wagon]

did you use mesa startproject? if so, according to that comment it seems to be outdated and generates some invalid code

[rancid tinsel]

i did not. i created my project using uv init

[worn crown]

okay, I seem to have been on the newest version, which did not have the "mesa" command

[wheat wagon]

mesa.visualization.ModularVisualization was removed: https://github.com/projectmesa/mesa/commit/63d02a60ce3d642d248286d50cc0d73599e69056#diff-3fe59c3958dd474dec498ff19129425118d6a7fb89badd7e06730ab21436e65b

so if you want this code to run you need an older version, I believe

[rancid tinsel]

oh thank you. that helps a lot

[wheat wagon]

mesa==3.1.3 would work, I think

[rancid tinsel]

it doesn't. trying to find what version i need

[worn crown]

that commit seems to be there since v3.0.0a0

[wheat wagon]

oh, you're right, I misread this

so probably mesa<3, then

for some time they supported the old API as mesa.visualisation_old, but nowadays ModularVisualization doesn't exist at all. not sure what it was replaced by

[worn crown]

either that or figure out how to use whatever replaced it thing you're trying to use.

[rancid tinsel]

okay my issue seems to be fixed now. thank you for the help

closing this now

!close

[karmic rivet]

Python help channel closed with !close

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