# Can not run Python demo **URL:** \ **Category:** Uncategorized\ **Created:** [October 13, 2023, 6:14pm UTC](https://rpi-rgb-led-matrix.discourse.group/t/can-not-run-python-demo/735 "2023-10-13T18:14:03Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Saralee](https://avatars.discourse-cdn.com/v4/letter/s/919ad9/32.png) [@Saralee](https://rpi-rgb-led-matrix.discourse.group/u/Saralee)\ **Post date:** [October 13, 2023, 6:14pm UTC](https://rpi-rgb-led-matrix.discourse.group/t/can-not-run-python-demo/735/1 "2023-10-13T18:14:03Z")
I connect Raspberry Pi with RGB matrix using ada fruit Bonnet, and tried to run runtext.py ```auto sudo ./bindings/python/samples/runtext.py --led-rows=16 --led-cols=32 --led-chain=4 ``` I got this error ```auto File "/home/afc/rpi-rgb-led-matrix/bindings/python/rgbmatrix/ __init__.py", line 7, in from .core import RGBMatrix, FrameCanvas, RGBMatrixOptions ModuleNotFoundError: No module named 'rgbmatrix.core' ``` I researched and found some post recommend to install python in the rgi matrix directory, following the instruction in README file ```auto sudo apt-get update && sudo apt-get install python3-dev python3-pillow -y make build-python PYTHON=$(command -v python3) sudo make install-python PYTHON=$(command -v python3) ``` then I ran into this error ```auto make[2]: Leaving directory '/home/afc/rpi-rgb-led-matrix/lib' /usr/bin/python3 setup.py build --build-lib . rgbmatrix/core.cpp:198:12: fatal error: longintrepr.h: No such file or directory 198 | #include "longintrepr.h" | ^ ~~~~~~~~~~~~~~ compilation terminated. ``` I found that it’s a bug in Cython. but I have no idea how to deal with it. any help would be appreciated. ---
**Author:** ![weins3](https://avatars.discourse-cdn.com/v4/letter/w/c68b51/32.png) [@weins3](https://rpi-rgb-led-matrix.discourse.group/u/weins3)\ **Post date:** [January 31, 2025, 9:51am UTC](https://rpi-rgb-led-matrix.discourse.group/t/can-not-run-python-demo/735/2 "2025-01-31T09:51:10Z")
did you can resolve? i have the same problem