debug.py 文件源码

def __init__(self, run=True, *, _frame=1):
        """
        set _frame to 2 if you are inherting from ConditionalBlock and
        __enter__() is nested. Set _frame to N+1 for N levels of nesting.
        See `DebugBlock.__enter__`
        """
        self.run = run
        self.old_sys_trace = sys.gettrace()
        self._frame = _frame