8000 cant use opencv-python? · Issue #140 · pyscript/pyscript · GitHub
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Amith225 opened this issue May 3, 2022 · 8 comments
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cant use opencv-python? #140

Amith225 opened this issue May 3, 2022 · 8 comments
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package Issues related to dependencies that are not in pyodide and cannot be installed with micropip

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@Amith225
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Amith225 commented May 3, 2022
- opencv-python

gives error in console, stating cant get pure python wheel:

Uncaught (in promise) PythonError: Traceback (most recent call last):
File "/lib/python3.10/asyncio/futures.py", line 201, in result
raise self._exception
File "/lib/python3.10/asyncio/tasks.py", line 234, in __step
result = coro.throw(exc)
File "/lib/python3.10/site-packages/micropip/_micropip.py", line 183, in install
transaction = await self.gather_requirements(requirements, ctx, keep_going)
File "/lib/python3.10/site-packages/micropip/_micropip.py", line 173, in gather_requirements
await gather(*requirement_promises)
File "/lib/python3.10/asyncio/futures.py", line 284, in await
yield self # This tells Task to wait for completion.
File "/lib/python3.10/asyncio/tasks.py", line 304, in __wakeup
future.result()
File "/lib/python3.10/asyncio/futures.py", line 201, in result
raise self._exception
File "/lib/python3.10/asyncio/tasks.py", line 232, in __step
result = coro.send(None)
File "/lib/python3.10/site-packages/micropip/_micropip.py", line 286, in add_requirement
raise ValueError(
ValueError: Couldn't find a pure Python 3 wheel for 'opencv-python'. You can use micropip.install(..., keep_going=True) to get a list of all packages with missing wheels.
@Rjtsahu
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Rjtsahu commented May 3, 2022

Yeah, seems opencv-python package is not supported on micropip installer

@rth
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rth commented May 3, 2022

It will be supported as soon as the next Pyodide version is released (and pyscript updates to using it) see pyodide/pyodide#2424 for more details.

@antocuni antocuni added the package Issues related to dependencies that are not in pyodide and cannot be installed with micropip label May 6, 2022
@MeloHenrique
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Pyodide already has a dev version that uses it, isn't it possible to override the default version Pyscript uses?

@marimeireles
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@MeloHenrique I think in this case you'll want to change the version of Pyodide that PyScript is using, right?
This might help: #328
I don't think we'll default the Pyodide version to be the most recent release. I think we'll keep having the stable one as default.

@marimeireles marimeireles mentioned this issue Jun 20, 2022
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@ryanking13
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Recent Pyodide 0.21.0 release includes opencv-python :)

@marimeireles
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Cool! Thank you for reporting back @ryanking13.
Guess I'm closing this one then since we updated to this version.
Cheers.

@DamaniMC
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DamaniMC commented Jun 2, 2023

Recent Pyodide 0.21.0 release includes opencv-python :)

I'm, having the same issue on 0.22.1 :(

@JeffersGlass
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@DamaniMC Are you having the same issue with it not importing? This works for me in PyScript 2023.03.1 / Pyodide 0.22.1:

<py-config>
    packages = ['opencv-python']
</py-config>
<py-script>
    import cv2
    print(cv2.__version__) # 4.6.0
</py-script>

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@antocuni @rth @JeffersGlass @Rjtsahu @marimeireles @ryanking13 @MeloHenrique @Amith225 @DamaniMC
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