AttributeError: 'Slice' object has no attribute 'value' when trying to access parts of np.array

[zznidar]

Trying to access parts of np.array using colons fails with AttributeError: 'Slice' object has no attribute 'value'

Simplified test

import pyscript
import numpy as np

@time_trigger("period(now, 4min)")
def simpleTest():
    test = np.array([[ [0, 0, 0], [255, 255, 255] ], [ [100, 150, 200], [50, 75, 100] ]])
    log.info(test)
    log.info(test.shape)
    test_cropped = test[:test.shape[0]*5//8, :, :]
    log.info(test_cropped)
    log.info(test_cropped.shape)

Repro steps

1. Add the abovementioned simplified test to ~/config/pyscript in your Home Assistant
2. Let it run
3. Observe the logs (Settings -> System -> Logs)

Actual result

Running fails with error

2026-01-30 23:38:30.812 ERROR (MainThread) [custom_components.pyscript.file.watcher.simpleTest] Exception in <file.watcher.simpleTest> line 9:
        test_cropped = test[:test.shape[0]*5//8, :, :]
                            ^
AttributeError: 'Slice' object has no attribute 'value'

Expected result

It should not throw an error; instead, the result should be logged:

[[[  0   0   0]
  [255 255 255]]]
(1, 2, 3)

Version

Pyscript: Python Scripting for Home Assistant 1.7.0
Installation method Home Assistant OS
Core 2026.1.3
Supervisor 2026.01.1
Operating System 17.0
Frontend 20260107.2