问救命！miniedit导出.py文件报错typeError，该如何解决呀？

各位大佬救命！我搭建的环境是miniedit v2.3.1；python2.7下运行miniedit，在导出.py文件时报错如下

Exception in Tkinter callback

Traceback (most recent call last):

File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1540, in __call__

return self.func(*args)

File "miniedit.py", line 2019, in exportScript

for widget, item in self.widgetToItem:

File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1333, in cget

return self.tk.call(self._w, 'cget', '-' + key)

TypeError: cannot concatenate 'str' and 'int' objects