【python】tkinter entry报错AttributeError: ‘NoneType‘ object has no attribute ‘get‘

【报错】#AttributeError: ‘NoneType’ object has no attribute ‘get’
【代码】
entryT = Entry(window, width=10).grid(column=0, row=entrynr)
entryT.get()报错
【解决方法】
entryT = Entry(window, width=10)
entryT.grid(column=0, row=entrynr)
分开写