interactiveshell.py 文件源码

def debugger(self,force=False):
        """Call the pdb debugger.

        Keywords:

          - force(False): by default, this routine checks the instance call_pdb
            flag and does not actually invoke the debugger if the flag is false.
            The 'force' option forces the debugger to activate even if the flag
            is false.
        """

        if not (force or self.call_pdb):
            return

        if not hasattr(sys,'last_traceback'):
            error('No traceback has been produced, nothing to debug.')
            return

        self.InteractiveTB.debugger(force=True)

    #-------------------------------------------------------------------------
    # Things related to IPython's various namespaces
    #-------------------------------------------------------------------------