kouk

$ python foo.py &
[1] 21377
$ gdb -p 21377
GNU gdb (GDB) Fedora 7.7.1-17.fc20
[... gdb loading messages ...]
0x00007f9a09af46e3 in __select_nocancel () at ../sysdeps/unix/syscall-template.S:81
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
(gdb) py-bt
#4 Frame 0x22d9c70, for file foo.py, line 12, in forever ()
    sleep(1)