Python interface program pause code ?

Hello friends,
I'm trying design a custom UI for emc.
My problem is I couldnt pause the running program.
I used ;

import linuxcnc
c = linuxcnc.command()
c.auto(linuxcnc.AUTO_PAUSE)

...code but when I run this code, terminal shows me "Can't switch mode while mode is AUTO and interpreter is not IDLE" message.

How can I pause my running program, can you explain it ?

That seems to be exactly what the Axis GUI does

github.com/LinuxCNC/linuxcnc/blob/master...cripts/axis.py#L2259

Maybe the"magic" is the ensure_mode function?

Thanks bro. Like you said, everything works good ....