visualstudio_py_debugger.py 文件源码

def context_dispatcher(self, old, new):
        self.stepping = STEPPING_NONE
        # for those tasklets that started before we started tracing
        # we need to make sure that the trace is set by patching
        # it in the context switch
        if not old:
            pass # starting new
        elif not new:
            pass # killing prev
        else:
            if hasattr(new.frame, "f_trace") and not new.frame.f_trace:
                sys.call_tracing(new.settrace,(self.trace_func,))