ModuleNotFoundError: No module named 'pyrealsense2'
18166/31772MB(vision) 
[26543:26535 0:2008] 03:25:33 Thu Jan 14 [mona@goku:pts/0 +1] ~/research/code/vision/layout_estimation
$ echo $PYTHONPATH
/usr/local/lib:/usr/local/lib:
18166/31772MB(vision) 
[26543:26535 0:2009] 03:25:36 Thu Jan 14 [mona@goku:pts/0 +1] ~/research/code/vision/layout_estimation
$ echo $PYREALSENSE2_PATH
/usr/local/lib:/usr/local/lib:
 $ ls /usr/local/lib/
total 607M
drwxrwsr-x  3 root staff 4.0K Jul 31 12:27 python3.8
-rwxr-xr-x  1 root root  4.7M Jan  5 21:42 libprotobuf-lite.so.17.0.0
lrwxrwxrwx  1 root root    26 Jan  5 21:42 libprotobuf-lite.so.17 -> libprotobuf-lite.so.17.0.0
lrwxrwxrwx  1 root root    26 Jan  5 21:42 libprotobuf-lite.so -> libprotobuf-lite.so.17.0.0
-rwxr-xr-x  1 root root  1011 Jan  5 21:42 libprotobuf-lite.la
-rwxr-xr-x  1 root root   42M Jan  5 21:42 libprotobuf.so.17.0.0
lrwxrwxrwx  1 root root    21 Jan  5 21:42 libprotobuf.so.17 -> libprotobuf.so.17.0.0
lrwxrwxrwx  1 root root    21 Jan  5 21:42 libprotobuf.so -> libprotobuf.so.17.0.0
-rwxr-xr-x  1 root root   976 Jan  5 21:42 libprotobuf.la
-rwxr-xr-x  1 root root   59M Jan  5 21:42 libprotoc.so.17.0.0
lrwxrwxrwx  1 root root    19 Jan  5 21:42 libprotoc.so.17 -> libprotoc.so.17.0.0
lrwxrwxrwx  1 root root    19 Jan  5 21:42 libprotoc.so -> libprotoc.so.17.0.0
-rwxr-xr-x  1 root root   992 Jan  5 21:42 libprotoc.la
-rw-r--r--  1 root root   12M Jan  5 21:42 libprotobuf-lite.a
-rw-r--r--  1 root root  109M Jan  5 21:42 libprotobuf.a
-rw-r--r--  1 root root  172M Jan  5 21:42 libprotoc.a
drwxr-xr-x 12 root root  4.0K Jan  8 20:10 ..
drwxrwsr-x  4 root staff 4.0K Jan 14 14:37 python2.7
-rw-r--r--  1 root root  1.7M Jan 14 15:04 libglfw3.a
-rw-r--r--  1 root root   13M Jan 14 15:04 libfw.a
-rw-r--r--  1 root root   12M Jan 14 15:04 librealsense-file.a
-rw-r--r--  1 root root  165M Jan 14 15:06 librealsense2.so.2.41.0
-rw-r--r--  1 root root   20M Jan 14 15:07 librealsense2-gl.so.2.41.0
lrwxrwxrwx  1 root root    23 Jan 14 15:12 librealsense2.so.2.41 -> librealsense2.so.2.41.0
lrwxrwxrwx  1 root root    21 Jan 14 15:12 librealsense2.so -> librealsense2.so.2.41
drwxr-xr-x  2 root root  4.0K Jan 14 15:12 pkgconfig
lrwxrwxrwx  1 root root    26 Jan 14 15:12 librealsense2-gl.so.2.41 -> librealsense2-gl.so.2.41.0
lrwxrwxrwx  1 root root    24 Jan 14 15:12 librealsense2-gl.so -> librealsense2-gl.so.2.41
drwxr-xr-x  6 root root  4.0K Jan 14 15:12 cmake
drwxr-xr-x  6 root root  4.0K Jan 14 15:12 .