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Issues running GetBlockDemo python script


#1

We am currently working on a school project and we are trying to get the GetBlockDemo python script to work on our Raspberry Pi 3B+. When we run the code we are getting an ImportError: /home/pi/pixy2/build/python_demos/_pixy.so: undefined symbol: PyInstance_type.

We did not modify the python script. We have already pulled the library from github several times.

Is there any way we can correct this import error?


#2

Hello,
Are you running Python3? Currently, the library only supports Python2. You can find out by running “python” and looking at the version that gets printed.

Edward


#3

We tried running it with python3, python, python2.7 and we also included sudo but there is still an error occurring. We are trying stop the GetBlockDemo from running given a certain time. Is there any way we can fix this error so we can adjust the python script?


#4

Hello, I’m not sure what might be going on. Let’s try this – have you been able to get the libpixyusb2 get_blocks_cpp_demo demo working? There are step-by-step instructions here:

https://docs.pixycam.com/wiki/doku.php?id=wiki:v2:building_the_libpixyusb_example_on_linux

Edward