How to stop debugging python in vim

It is my first time to edit python code in vim equipped with python-mode plugin. After setting breakpoints, I use "\ r" command to run it.Then it keep still after printing '[pymode]code running...'.I try some ways but still can not quit debug.It just have no response no matter what I do.

Solution

According official Debugger commands (from here):

[usage:] dbg command [options]
- quit    :: exit the debugger
- run     :: continue execution until a breakpoint is reached or the program ends
         default shortcut: \r
- stop    :: exit the debugger
- over    :: step over next function call
         default shortcut: \o
- watch   :: execute watch functions
         default shortcut: \w
- up      :: go up the stack
         default shortcut: \u
- here    :: continue execution until the cursor (tmp breakpoint)
         default shortcut: \h
- down    :: go down the stack
         default shortcut: \d
- exit    :: exit the debugger
- eval    :: eval some code
- break   :: set a breakpoint
         default shortcut: \b
- into    :: step into next function call
         default shortcut: \i
- out     :: step out of current function call
         default shortcut: \t