qzmqkernel.py 文件源码

def run_code(self, code_obj, result=None):
        """Execute a code object.
        When an exception occurs, self.showtraceback() is called to display a
        traceback.
        Parameters
        ----------
        code_obj : code object
          A compiled code object, to be executed
        result : ExecutionResult, optional
          An object to store exceptions that occur during execution.
        Returns
        -------
        False : successful execution.
        True : an error occurred.
        """
        # Set our own excepthook in case the user code tries to call it
        # directly, so that the IPython crash handler doesn't get triggered
        old_excepthook, sys.excepthook = sys.excepthook, self.excepthook

        # we save the original sys.excepthook in the instance, in case config
        # code (such as magics) needs access to it.
        self.sys_excepthook = old_excepthook
        outflag = 1  # happens in more places, so it's easier as default
        try:
            try:
                #self.hooks.pre_run_code_hook()
                #rprint('Running code', repr(code_obj)) # dbg
                exec(code_obj, self.user_global_ns, self.user_ns)
            finally:
                # Reset our crash handler in place
                sys.excepthook = old_excepthook
        except SystemExit as e:
            if result is not None:
                result.error_in_exec = e
            self.showtraceback(exception_only=True)
            warn("To exit: use 'exit', 'quit', or Ctrl-D.", level=1)
        #except self.custom_exceptions:
        #    etype, value, tb = sys.exc_info()
        #    if result is not None:
        #        result.error_in_exec = value
        #    self.CustomTB(etype, value, tb)
        except:
            if result is not None:
                result.error_in_exec = sys.exc_info()[1]
            self.showtraceback()
        else:
            outflag = 0
        return outflag