graphical user interface Archives

Tkinter GUI tutorial python – how to clean excel data

December 29, 2020February 22, 2021 admin 3825 Views 0 Comments Data, Data Analytics, Data Cleansing, graphical user interface, gui, Python, python tkinter

Estimated reading time: 2 minutes

Tkinter is an application within Python that allows users to create GUI or graphical user interfaces to manage data in a more user-friendly way.

We are building our data analytics capability here, and looking to provide the user with the functionality they use in their work or college projects.

We have tested this code over 100,000 records sitting on the Microsoft OneDrive network so in a way, for this reason, its speeds were quite good.

As a result over five tests, they all were under 100s from start to finish.

In this Tkinter GUI tutorial python, you will be shown how to find the data errors, clean them and then export the final result to excel.

We will take you through the following:

Creation of the Tkinter interface.
Methods/ functions to find errors.
Methods/functions to clean the data.
Exporting the clean data to an excel file.

To sum up:

The video walks through the creation of a Tkinter window using a canvas and a frame to store the data frame.

Then it looks at importing the data through pd.read_excel, to load the data into a pandas data frame.

Next, there is a function and or method that will extract the errors through str.extract , which is loaded into separate columns

Finally, I have exported the clean dataset using rawdata.to_excel , and saved the file as a separate new spreadsheet.

Python

Tkinter python tutorial

June 1, 2020January 17, 2021 admin 4010 Views 0 Comments Data, Data Analysis, Data Analytics, Data Science, graphical user interface, gui, Python, python programming, python tkinter, Python Tutorial

Estimated reading time: 3 minutes

Let’s make the introductions 🙂
Tkinter is a package that allows a programmer to build a GUI interface, which then can be opened on a computer screen by a user. There are many different types of GUI apps, but examples include a calculator or a text editor that opens when you click it.

Tkinter would be the most commonly used GUI package in Python, due to its simplicity, but PySimpleGUI, PYQt or PySide are other alternatives. Ensure you research these before using to make sure they suitable for your needs.

Why use Tkinter?

Relatively simple and easy to learn, upskilling is quick.
A great introduction to the concepts and ideas for building GUI apps, you will get a good grounding in the techniques and approaches needed.
Very well documented, so a programmer should be able to find the answer to anything specific they need to understand.

Now we are introduced, let’s see how to utilise it:

Install Python as usual, and make sure that Tkinter is working and you have the correct version. Note that import tkinter is for version 3.x, before that use import Tkinter

Please note that you will see in places when using Python code, that capitalization is important. This will sometimes puzzle you as to why some of your code does not work, usually, the interpreter should flag it for you.

While it is correct to put a capital at the start of a line, the programming language will ignore written English convention. An example is as follows:

list = ['a','b','c']
Print(list)
gives 
NameError: name 'Print' is not defined
whereas
list = ['a','b','c']
print(list)
gives ['a', 'b', 'c'] 
No errors

When saving your python script DO NOT call it tkinter.py as I did, the import statement will not work. Call it something like tkinter_test.py, see red arrow below.

At the start of the video below the code will look like this. the first six lines are the creation of the Tkinter screen its size and any buttons that will appear on it.

Note that all code should appear betwee line two and line six, so that the screen output works and looks correctly.