我是python的新手，正在处理map减少mincemeat的问题。运行mincemeat脚本时出现以下错误。$pythonmincemeat.py-pchangemelocalhosterror:uncapturedpythonexception,closingchannel(:globalname're'isnotdefined[/usr/lib/python2.7/asyncore.py|read|79][/usr/lib/python2.7/asyncore.py|handle_read_event|438][/usr/lib/python2.7/asynchat.py|han