error "not a valid type annotation" masks other errors #198

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sb10q · 2022-02-25T18:08:46+08:00

sb10q commented

2022-02-25 18:08:46 +08:00

from artiq.coredevice.sampler import Sampler

alone fails with an understandable error:

type error at identifier `ValueError` (cannot find symbol `ValueError`) at /home/sb/artiq/artiq/coredevice/sampler.py: line 36 column 15

But if you follow it with:

@nac3
class NAC3Devices(EnvExperiment):
    sampler0: KernelInvariant[Sampler]

then the original error disappears and is replaced with something opaque:

`Sampler` is not a valid type annotation (at nac3devices.py: line 19 column 31)

``` from artiq.coredevice.sampler import Sampler ``` alone fails with an understandable error: ``` type error at identifier `ValueError` (cannot find symbol `ValueError`) at /home/sb/artiq/artiq/coredevice/sampler.py: line 36 column 15 ``` But if you follow it with: ``` @nac3 class NAC3Devices(EnvExperiment): sampler0: KernelInvariant[Sampler] ``` then the original error disappears and is replaced with something opaque: ``` `Sampler` is not a valid type annotation (at nac3devices.py: line 19 column 31) ```

sb10q added this to the Prealpha milestone 2022-02-25 18:08:46 +08:00

sb10q added the

high-priority

label 2022-02-25 18:08:46 +08:00

pca006132 was assigned by sb10q

2022-02-25 18:08:46 +08:00

sb10q commented

2022-02-25 18:11:01 +08:00

Nevermind - @nac3 was missing on Sampler, so the "not a valid type annotation" error is actually reasonable, though still slightly confusing.

Nevermind - ``@nac3`` was missing on ``Sampler``, so the "not a valid type annotation" error is actually reasonable, though still slightly confusing.

sb10q closed this issue

2022-02-25 18:11:01 +08:00