rpi-rgb-led-matrix
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hzeller
Exception: No module named core
Hello, I've a problem executing the samples fpr python.
I get everytime this exception:
PS D:\Downloads\Chrome\rpi-rgb-led-matrix-master\bindings\python\samples> python runtext.py Traceback (most recent call last): File "runtext.py", line 3, in <module> from samplebase import SampleBase File "D:\Downloads\Chrome\rpi-rgb-led-matrix-master\bindings\python\samples\samplebase.py", line 7, in <module> from rgbmatrix import RGBMatrix, RGBMatrixOptions File "D:\Downloads\Chrome\rpi-rgb-led-matrix-master\bindings\python\rgbmatrix\__init__.py", line 7, in <module> from .core import RGBMatrix, FrameCanvas, RGBMatrixOptions ImportError: No module named core PS D:\Downloads\Chrome\rpi-rgb-led-matrix-master\bindings\python\samples>
I was thinking, that the core.pyx has a wrong ending and I changed from .pyx to .py Try again and I got this exception:
PS D:\Downloads\Chrome\rpi-rgb-led-matrix-master\bindings\python\samples> python runtext.py Traceback (most recent call last): File "runtext.py", line 3, in <module> from samplebase import SampleBase File "D:\Downloads\Chrome\rpi-rgb-led-matrix-master\bindings\python\samples\samplebase.py", line 7, in <module> from rgbmatrix import RGBMatrix, RGBMatrixOptions File "D:\Downloads\Chrome\rpi-rgb-led-matrix-master\bindings\python\rgbmatrix\__init__.py", line 7, in <module> from .core import RGBMatrix, FrameCanvas, RGBMatrixOptions File "D:\Downloads\Chrome\rpi-rgb-led-matrix-master\bindings\python\rgbmatrix\core.py", line 4 from libc.stdint cimport uint8_t, uint32_t, uintptr_t ^ SyntaxError: invalid syntax PS D:\Downloads\Chrome\rpi-rgb-led-matrix-master\bindings\python\samples>
What I do wrong?
My target is to run a 32x64 with FM6124 on it with a RasPy3b+ and python (2.7).
the paths mentioned in that error message indicate that you're running this on some windows-based system? You want to compile that on your Pi.
For this example, yes. It was a traceback from my Win10. But I got the same on my RasPy.
I'm able to execute the demo by using:
sudo examples-api-use/demo -D0
pi@raspberrypi:~/rpi-rgb-led-matrix-master $ sudo examples-api-use/demo -D0 Size: 32x32. Hardware gpio mapping: regular Press <CTRL-C> to exit and reset LEDs
Sadly I've two squares rotating on my display....
But how can I execute a python code only?
I wanted to try this:
pi@raspberrypi:~/rpi-rgb-led-matrix-master/bindings/python/samples $ python runtext.py
but got this:
Traceback (most recent call last): File "runtext.py", line 3, in <module> from samplebase import SampleBase File "/home/pi/rpi-rgb-led-matrix-master/bindings/python/samples/samplebase.py", line 7, in <module> from rgbmatrix import RGBMatrix, RGBMatrixOptions File "/home/pi/rpi-rgb-led-matrix-master/bindings/python/rgbmatrix/__init__.py", line 7, in <module> from .core import RGBMatrix, FrameCanvas, RGBMatrixOptions ImportError: No module named core pi@raspberrypi:~/rpi-rgb-led-matrix-master/bindings/python/samples $
Or here are no examples in python?
If you have two squares: do you happen to have a 64x32 panel ? Then you need to give it --led-cols=64 parameter.
As for Python: Please follow the instructions to install it as described in the readme https://github.com/hzeller/rpi-rgb-led-matrix/tree/master/bindings/python
Thank you for your time!
If you have two squares: do you happen to have a 64x32 panel ?
Yes, look in the last line of my first post ;)
Then you need to give it
--led-cols=64parameter.
Thank you, that was it!
As for Python: Please follow the instructions to install it as described in the readme https://github.com/hzeller/rpi-rgb-led-matrix/tree/master/bindings/python
I've done this, but:
sudo apt-get update && sudo apt-get install python2.7-dev python-pillow -y
Was working fine.
make build-python
Didn't worked at the first try. I needed to change the directory.
sudo make install-python
Same problem as before. I don't know why I must change the directory ...
But now, It works to execute the .py examples thumbs up
And maybe I'm stupid, but why I must use "sudo ./" at beginning? I use normaly "python demo.py" and that was it.
As Information. When I execute this code, I got a messy picture:
sudo ./image-scroller.py --led-chain=2 --led-slowdown-gpio 0
A new question: Is it possible to change (decrease) the frequency to see a really slow buildup of the objects (pictures, symbols, etc.)?
@TenchiMuyo1984 - If I may ask, which directly did you change to- before executing the make build-python statement? I'm facing the same issue now, and am trying to fix it.
