Python tkinter widgets Exercise: Create a Text widget using tkinter module

Last update on May 28 2022 13:01:14 (UTC/GMT +8 hours)

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:

Python Code Editor:

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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

The os and os.path modules.
The __file__ constant
os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
os.path.dirname(path) (returns "the directory name of pathname path")
os.getcwd() (returns "a string representing the current working directory")
os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m