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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.

Sample Solution:

Python Code:

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()

Sample Output:

Flowchart: Create a Text widget using tkinter module

Flowchart:

Flowchart: Create a Text widget using tkinter module

Python Code Editor:

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Next: Write a Python GUI program to create three single line text-box to accept a value from the user using tkinter module.

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Python: Tips of the Day

Time it:

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="------")

Output:

1.9301698543131351------5.389458132907748