componentize-py example from docs doesn't seem to work

[womeier]

The adder example from the docs, doesn't seem to work. What am I doing wrong, or could the documentation be outdated?

I'm using this simple setup, taken from the docs.

Reproduce

build-component:
	componentize-py \
		--wit-path component.wit \
		--world adder \
		componentize \
		app \
		-o add.wasm

fails with

Traceback (most recent call last):
  File "/home/wolfgang/.local/bin/componentize-py", line 8, in <module>
    sys.exit(script())
             ^^^^^^^^
AssertionError: Traceback (most recent call last):
  File "/0/app.py", line 1, in <module>
    import adder
ModuleNotFoundError: No module named 'adder'


Caused by:
    ModuleNotFoundError: No module named 'adder'
make: *** [Makefile:11: build-component] Error 1

Version

componentize-py: 0.17.2

[vados-cosmonic]

Hey @womeier thanks for bringing this up -- it looks like upstream componentize-py has changed a bit -- the documentation has to be updated, I should have a PR up within a few minutes.

While the tooling previously generated the adder world, it no longer does, and instead generates a wit_world import.

This is probably a good exemplar of why we should cover the "getting started" codebases we describe in guides under test in this repo, but that's a discussion for another time.

[womeier]

while you're at it, there's also a small type on the same site:

Ctrl+F "componentize-py --wit-path wit/component/wit --world adder bindings",
It should be component.wit (not a slash)

[vados-cosmonic]

Thanks! Actually I changed that to just --wit-path wit/ because it can handle dirs just as well (and in other parts of the ecosystem that's the option that lets it discover imports/deps more gracefully)!

The PR is up btw: #296

Should be merged in soon, but if you'd like to try it that would be great -- happy to take any other recommendations you have!