Correct Your Spellings Using Python
A spell checker is a vital tool to help improve the accuracy of your written communications. When writing, you can easily overlook typos or misspellings that a spell checker can easily detect for you. This not only saves time and effort but also helps you to avoid embarrassing mistakes.
You can easily develop a GUI application in which you can type a word and get its corrected spelling using Python’s Tkinter module. Tkinter provides amazing customizable widgets that make development easy and fun.
The Tkinter and the Spell Checker Module
The default GUI library for Python is called Tkinter. you could create incredible GUI programs with Tkinter. You mightbuild a simple calculator, a to-do list app, text editor, music player, or quiz game. You canuse Python and Tkinter to create simple desktop appsand put your knowledge into practice while advancing your programming skills.
To install Tkinter in your system, open the terminal and execute:
Another module, you will use greatly in this project is the Spell Checker module. The work of Peter Norvig forms the basis of this module. It uses the Levenshtein Distance algorithm to find permutations in a word frequency list. It then assumes that the greater the frequency of the word, the more likely it is to be the correct spelling.
To install the spellchecker module, execute the following command:
How to Build a Spelling Corrector App Using Python
Follow these steps to build a GUI spelling corrector using Python.
This example code is available in thisGitHub repositoryand is free for you to use under the MIT license.
Implement the Underlying Logic and Functionality
The first step is to import Tkinter and the SpellChecker class from the spellchecker module. Create an instance ofSpellCheckerand store it in a variable named corrector.
Define a function,clearAll(), that will wipe out the data displayed on the entry field. To achieve this use thedelete()function to remove all entries from 0 to the last index on both entry fields,word1_fieldandword2_field.
Define another function namedcorrection()that reads a word from the first input field and adds its correct spelling to the second. Use theget()method on the word1_field to get its value as a string. Pass this retrieved word to thecorrection()function, then clear the word2_field widget before using theinsert()method to insert the corrected word at the beginning of the field.
Create the User Interface
Initialize the Tkinter instance and display the root window. Use theconfigure()method and set the background color of the window to your desired color such as aqua. Set the dimensions of the window to be 900 pixels wide and 450 pixels tall using thegeometry()method. Also set an appropriate window title.
Use Label widgets to display useful information about the application. The constructor accepts a parent window in which you want to place it, the text it should display, the font color, the background color, and the font size.
Grid is a geometry manager that organizes widgets in a two-dimensional table. You can envision a layout of five rows and two columns.
Place each label in an appropriate row and column, remember that their indexes begin from zero. You can use padding to align your widgets; in this example, label2 has a padding of 100 pixels along the X-axis.
Define two entry widgets, one for the input and one for the correction. Set the font size of both widgets to 10. Set the misspelled entry widget in the second row and second column, with a padding of 100 along the X-axis and 50 along the Y-axis. Do the same for the corrected entry widget, but place it in the fourth row.
Use theButton()widget to create two buttons:CorrectionandClear. Pass in the root window as their owner, the button’s label as a string, the background color as Orange, the font color as black, and the font size as 8. You can supply a function name here using thecommandargument; this will run when the user clicks the button.
Place each button in an appropriate row and column.
Themainloop()function tells Python to run the Tkinter event loop and listen for events (such as button presses) until you close the window:
Put all this code together and run the program to watch your spelling corrector application in action.
The Output of the Spelling Corrector App
When you run this program, you should see a small window with a blue background color. Enter a misspelled word in the first input field, then press theCorrectionbutton. You should see the correct spelling appear in the second text field. You can use theClearbutton to reset both text fields.
Python GUI Frameworks for Developers
Python GUI frameworks are a fantastic resource for developers. You can quickly build an application with an attractive, useful GUI. Some of the frameworks you can use, other than Tkinter, include Qt designer, Kivy, Toga, and BeeWare. Using these frameworks, you can build anything from small utility apps to fully functional products.
With Python, you get an added advantage. As Python GUI frameworks support cross-platform development, you can use the same code on different operating systems. With all these features and many more, Python has emerged as an ideal language for creating graphical user interfaces with increased reliability and reduced costs.
If you’re looking for a spelling and grammar checker but don’t want to download any apps or extensions, here are the six best options to choose from.
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