Python tkinter widgets Exercise: Create a Text widget using tkinter module
Python tkinter widgets: Exercise-7 with Solution
Write a Python GUI program to create a Text widget using tkinter module. Insert a string at the beginning then insert a string into the current text.
Delete the first and last character of the text.
import tkinter as tk parent = tk.Tk() # create the widget. mytext = tk.Text(parent) # insert a string at the beginning mytext.insert('1.0', "- Python exercises, solution -") # insert a string into the current text mytext.insert('1.19', ' Practice,') # delete the first and last character (including a newline character) mytext.delete('1.0') mytext.delete('end - 2 chars') mytext.pack() parent.mainloop()
Python Code Editor:
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Python: Tips of the Day
timeit library is great for timing Python execution times. Just pass a function in string format to timeit.timeit() method and it will carry out 1 million executions to report the minimum time the code takes.
Its very useful to compare small code pieces and different functions but can be sluggish with big code.
Check out the example below demonstrating the execution time difference between 2 very similar list comprehension methods in Python:
import timeit lst1='''list(range(100))''' lst2='''[i for i in range(100)]''' a=timeit.timeit(lst1) b=timeit.timeit(lst2) print(a, b, sep="------")
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