8000 Ref #4682 - Pixelbuf has no attribute _transmit -- problem seems to be back · Issue #8488 · adafruit/circuitpython · GitHub
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Ref #4682 - Pixelbuf has no attribute _transmit -- problem seems to be back #8488

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PaulskPt opened this issue Oct 19, 2023 · 5 comments · Fixed by #8522
Closed

Ref #4682 - Pixelbuf has no attribute _transmit -- problem seems to be back #8488

PaulskPt opened this issue Oct 19, 2023 · 5 comments · Fixed by #8522
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bug micropython core
Milestone
9.0.0

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@PaulskPt
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CircuitPython version

Adafruit CircuitPython 9.0.0-alpha.1-74-geae426ed90 on 2023-10-18; ProS3 with ESP32S3

Code/REPL

id = board.board_id


if id == 'unexpectedmaker_pros3':
    use_neopixel = True
    import pros3
    import neopixel
    my_brightness = 0.005
    BLK = 0
    RED = 1
    GRN = 200
else:
    use_neopixel = False
    my_brightness = None
    BLK = None
    RED = None
    GRN = None

# in setup()
if id == 'unexpectedmaker_pros3':
        try:
            # Turn on the power to the NeoPixel
            pros3.set_ldo2_power(True)

            if not use_neopixel:
                pixels = neopixel.NeoPixel(board.NEOPIXEL, 1)
                #for i in range(len(pixels)):
                #    pixels[i] = RED
                neopixel.NeoPixel.brightness = my_brightness
                r,g,b = pros3.rgb_color_wheel( BLK )
                pixels[0] = ( r, g, b, my_brightness)
                pixels.write()
        except ValueError:
            pass

Behavior

File "code.py", line 375, in setup
AttributeError: 'PixelBuf' object has no attribute '_transmit'

Description

I just flashed an Unexpected Maker ProS3 with the latest version of Circuitpython
then appeared the error above. There is no use of '_transmit' in my code.py script.

I searched and found the discussion of issue #4682.

Additional information

No response
@PaulskPt PaulskPt added the bug label Oct 19, 2023
@PaulskPt PaulskPt changed the title Ref #4682 - Pixelbus has no attribute _transmit -- problem seems to be back Ref #4682 - Pixelbuf has no attribute _transmit -- problem seems to be back Oct 19, 2023
@tannewt tannewt added this to the 9.0.0 milestone Oct 19, 2023
@tannewt
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tannewt commented Oct 19, 2023

I suspect we need #4688 again and we should add a test this time.

@ladyada
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ladyada commented Oct 21, 2023

bumped into this too - commenting so i get notified when its closed :)

@PaulskPt
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I downloaded the "latest" CPY file:
2023-10-25T02:50:15.000Z 2.9 MB [adafruit-circuitpython-unexpectedmaker_pros3-en_US-20231025-702b4a5.uf2](https://adafruit-circuit-python.s3.amazonaws.com/bin/unexpectedmaker_pros3/en_US/adafruit-circuitpython-unexpectedmaker_pros3-en_US-20231025-702b4a5.uf2)
about 9 hours after Dan closed this issue:

Contents boot_out.txt:
Adafruit CircuitPython 9.0.0-alpha.1-86-g702b4a58f8 on 2023-10-25; ProS3 with ESP32S3

Still get:

Error 'PixelBuf' object has no attribute '_transmit'
Traceback (most recent call last):
  File "code.py", line 1629, in <module>
  File "code.py", line 1583, in main
  File "code.py", line 1322, in say_hello
AttributeError: 'PixelBuf' object has no attribute '_transmit'

Did I download the latest too soon?

@tannewt tannewt reopened this Oct 25, 2023
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tannewt commented Oct 25, 2023

I thought I had fixed it but it looks like my test was wrong. Will look more today. Thanks for testing!

@tannewt tannewt mentioned this issue Oct 25, 2023
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tannewt commented Oct 25, 2023

Looks like I only fixed calling .show() directly. The pixel assignment also calls show under the hood when auto_write is enabled. It wasn't fixed by the first change. The new PR fixes it too.

tannewt added a commit that referenced this issue Oct 25, 2023
@tannewt
Pass subobject into native subscr
be30c12 
This allows PixelBuf to call transmit after setting a value.

Fixes #8488
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Pass subobject into native subscr tannewt/circuitpython
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