Advantage #1 - GUIs enable interaction through clarity and control. The primary objective of every GUI is to deliver the kind of clarity that will allow its users to rapidly begin engaging and interacting with it in meaningful ways.
A graphical user interface (GUI) allows a user to interact with a computer program using a pointing device that manipulates small pictures on a computer screen. However, a GUI program creates the icons and widgets that are displayed to a user and then it simply waits for the user to interact with them.
A GUI allows the user of a computer to communicate with the computer by moving a pointer around on a screen and clicking a button. A program on the computer is constantly checking for the location of the pointer on the screen, any movement of the mouse, and any buttons pressed.
A GUI uses windows, icons, and menus to carry out commands, such as opening, deleting, and moving files. Although a GUI operating system is primarily navigated using a mouse, a keyboard can also be used via keyboard shortcuts or the arrow keys.
Abstract. The Graphical User Interface (GUI) is an integral component of contemporary computer software. A stable and reliable GUI is necessary for correct functioning of software applications. Comprehensive verification of the GUI is a routine part of most software development life cycles.
There are four prevalent types of user interface and each has a range of advantages and disadvantages:
- Command Line Interface.
- Menu-driven Interface.
- Graphical User Interface.
- Touchscreen Graphical User Interface.
GUI is "graphical user interface" and UI is just "user interface." GUI is a subset of UI. UI can include non-graphical interfaces such as screen readers or command line interfaces which aren't considered GUI.
Graphical user interface is sometimes shortened to GUI. The user chooses an option usually by pointing a mouse at an icon representing that option. Features of GUIs include: They are much easier to use for beginners. They enable you to easily exchange information between software using cut and paste or 'drag and drop'.
Tkinter is easy to understand and master due to a small library. 3. PyQt has a modern look and a good UI. PyQt have a Qt Designer tool which we can use to build GUIs than get python code of that GUI using Qt Designer.
The only good thing I have to say about Python is that does have a pretty good library of GUI tools, using the Tk toolkit. It has a good number of built in widgets, easy window creation, good event handling methods, and reasonably good, simple drawing methods.
On the desktop, PyQt is better because you can get a near-native look and feel easy and you have a simple gui designer. But on mobile, it makes more sense to go with Kivy. Kivy is more oriented towards mobile interfaces. But PyQt is not only a UI library, it can also do networking, databases and other things.
The simple answer is yes: Python can be used for either front-end or back-end development. That said, it's approachable syntax and widespread server-side use makes Python a core programming language for back-end development. Front-end Python is not unheard of, it's just not usually preferred.
PyQt is free software developed by the British firm Riverbank Computing. It is available under similar terms to Qt versions older than 4.5; this means a variety of licenses including GNU General Public License (GPL) and commercial license, but not the GNU Lesser General Public License (LGPL).
These frameworks will be highly useful to you as a Python developer.
- CherryPy: CherryPy is a minimalist Python web framework.
- Flask: Flask is a framework that is highly suitable for developers that want to make a standalone app.
- Django: Django is the most popular Python framework.
- Pyramid:
- TurboGears:
- Pylons:
- Web2py:
tkinter is capable of making some good functional GUIs. They may not be fancy, but for some things they'll beat a CLI every time. File / Folder Browsing has already been mentioned as one way a GUI is superior. You can change the colors, bevel depths, etc, with tkinter, so that all GUIs don't look so grey.
Tkinter Programming
- Import the Tkinter module.
- Create the GUI application main window.
- Add one or more of the above-mentioned widgets to the GUI application.
- Enter the main event loop to take action against each event triggered by the user.
Python is a good choice for platform desktop apps. And PyQt is a good choice for a GUI framework. Freezing/installers/distribution is often where things get more difficult, but the tools are improving. You might have to try and/or use more than one to find one that works for you.
Python supports various databases like MySQL, Oracle, Sybase, PostgreSQL, etc. Python also supports Data Definition Language (DDL), Data Manipulation Language (DML) and Data Query Statements. For database programming, the Python DB API is a widely used module that provides a database application programming interface.
tkinter Installation or Setup
- For Python 3. sudo apt-get install python3-tk.
- For Python 2.7. sudo apt-get install python-tk.
- Verifying Installation. To verify if you have successfully installed Tkinter, open your Python console and type the following command: import tkinter as tk # for Python 3 version.
A widely used way to run Python code is through an interactive session. To start a Python interactive session, just open a command-line or terminal and then type in python , or python3 depending on your Python installation, and then hit Enter .
I got a shortcut for Idle (Python GUI).
- Click on Window icon at the bottom left or use Window Key (only Python 2), you will see Idle (Python GUI) icon.
- Right click on the icon then more.
- Open File Location.
- A new window will appears, and you will see the shortcut of Idle (Python GUI)
Python is a general-purpose coding language—which means that, unlike HTML, CSS, and JavaScript, it can be used for other types of programming and software development besides web development. That includes back end development, software development, data science and writing system scripts among other things.
Best Practices for Designing an Interface
- Keep the interface simple.
- Create consistency and use common UI elements.
- Be purposeful in page layout.
- Strategically use color and texture.
- Use typography to create hierarchy and clarity.
- Make sure that the system communicates what's happening.
- Think about the defaults.
Creating Your First PyQt Application
- Import QApplication and all the required widgets from PyQt5. QtWidgets .
- Create an instance of QApplication .
- Create an instance of your application's GUI.
- Show your application's GUI.
- Run your application's event loop (or main loop).
