Tk.textでログ表示させるときのハマりポイント - Qiita

(base) PS C:\Users\95315> python -V Python 3.6.10 :: Anaconda, Inc. (base) PS C:\Users\95315> conda -V conda 4.9.2 (base) PS C:\Users\95315>conda list … tk 8.6.8 hfa6e2cd_0 … from tkinter import * from tkinter import ttk root = Tk() log = Text(root, state='disabled', width=80, height=24, wrap='none') log.grid() def writeToLog(msg): numlines = int(log.index('end - 1 line').split('.')[0]) log['state