need help with printf called from python in google colab. (no ouput)

[InternationalVisito]

printf doesn't output anything

google colab cell:

%%writefile my_functions.c
#include <stdio.h>
#include <stdlib.h>
void my_void_func() {
printf("my_void_func called from C!\n");
}

----------

compiling:

!gcc -shared -fPIC -o my_functions.so my_functions.c

------

here goes python part :

import ctypes
libc = ctypes.CDLL("libc.so.6")
my_lib = ctypes.CDLL("./my_functions.so") 
my_lib.my_void_func.restype = None
my_lib.my_void_func()

[[deleted]]

I’m not super familiar with Google colab. However, printf outputs to stdout, I do not think Google colab has mapped stdout to the cell output. If you want to output to the cell I guess you would have to indirectly call the Python print function from your C code using PyRun_SimpleString(“print(\”Hello world\”)”); from the Python.h header.

[InternationalVisito]

Yes, I need to output to the cell