ctypes error: libdc1394 error: Failed to initialize libdc1394

Question

I'm trying to compile my program to a shared library that I can use from within Python code using ctypes.

The library compiles fine using this command:

g++ -shared -Wl,-soname,mylib -O3 -o mylib.so -fPIC [files] `pkg-config --libs --cflags opencv`

However, when I try and import it using ctypes

from ctypes import *
mylib = CDLL("/path/to/mylib.so")
print mylib.test() // Expected output: Hello World

I get the following error:

libdc1394 error: Failed to initialize libdc1394

What's going on?

Answer 1

Very frustrating that nobody actually shows a concrete solution. I had this issue after installing OpenCV. For me the easiest solution to remove this warning was actually to disable this driver:

sudo ln /dev/null /dev/raw1394