- Python 3 Basic Tutorial
- Gui Modules For Python
- Windows Gui Downloads
- Python Gui Programming Platforms For Windows
- Python Windows 10 Gui Programming
- Python 3 Advanced Tutorial
- Python 3 Useful Resources
Python GUI Programming. In this Python tutorial, we will discuss different interfaces that we can use to develop a Python GUI (graphical user interface). Also, we will see many options for Python GUI Programming, of these, we will focus on Python Tkinter. Moreover, in this Python Tkinter tutorial for Python 3, we will discuss Tkinter with its 19 kinds of widgets. As a Python developer, sooner or later you’ll want to write an application with a graphical user interface.Fortunately, there are a lot of Python GUI options: The Python wiki on GUI programming lists over 30 cross-platform frameworks, as well as Pyjamas, a tool for cross-browser Web development based on a port of the Google Web Toolkit.
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Gui Modules For Python
Python provides various options for developing graphical user interfaces (GUIs). The most important features are listed below.
- Fire emblem nightmare editor download. Tkinter − Tkinter is the Python interface to the Tk GUI toolkit shipped with Python. We would look this option in this chapter.
- wxPython − This is an open-source Python interface for wxWidgets GUI toolkit. You can find a complete tutorial on WxPython here.
- PyQt −This is also a Python interface for a popular cross-platform Qt GUI library. TutorialsPoint has a very good tutorial on PyQt here.
- JPython − JPython is a Python port for Java, which gives Python scripts seamless access to the Java class libraries on the local machine http://www.jython.org.
There are many other interfaces available, which you can find them on the net.
Tkinter Programming
Tkinter is the standard GUI library for Python. Python when combined with Tkinter provides a fast and easy way to create GUI applications. Tkinter provides a powerful object-oriented interface to the Tk GUI toolkit.
Creating a GUI application using Tkinter is an easy task. All you need to do is perform the following steps −
- 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.
Example
This would create a following window −
Tkinter Widgets
Tkinter provides various controls, such as buttons, labels and text boxes used in a GUI application. These controls are commonly called widgets.
There are currently 15 types of widgets in Tkinter. We present these widgets as well as a brief description in the following table −
Sr.No. | Operator & Description |
---|---|
1 | Button The Button widget is used to display the buttons in your application. |
2 | Canvas The Canvas widget is used to draw shapes, such as lines, ovals, polygons and rectangles, in your application. |
3 | Checkbutton The Checkbutton widget is used to display a number of options as checkboxes. The user can select multiple options at a time. |
4 | Entry The Entry widget is used to display a single-line text field for accepting values from a user. |
5 | Frame The Frame widget is used as a container widget to organize other widgets. |
6 | Label The Label widget is used to provide a single-line caption for other widgets. It can also contain images. |
7 | Listbox The Listbox widget is used to provide a list of options to a user. |
8 | Menubutton The Menubutton widget is used to display menus in your application. |
9 | Menu The Menu widget is used to provide various commands to a user. These commands are contained inside Menubutton. |
10 | Message The Message widget is used to display multiline text fields for accepting values from a user. |
11 | Radiobutton The Radiobutton widget is used to display a number of options as radio buttons. The user can select only one option at a time. |
12 | Scale The Scale widget is used to provide a slider widget. |
13 | Scrollbar The Scrollbar widget is used to add scrolling capability to various widgets, such as list boxes. |
14 | Text The Text widget is used to display text in multiple lines. |
15 | Toplevel The Toplevel widget is used to provide a separate window container. |
16 | Spinbox The Spinbox widget is a variant of the standard Tkinter Entry widget, which can be used to select from a fixed number of values. |
17 | PanedWindow A PanedWindow is a container widget that may contain any number of panes, arranged horizontally or vertically. |
18 | LabelFrame A labelframe is a simple container widget. Chinua achebe short stories pdf. Its primary purpose is to act as a spacer or container for complex window layouts. |
19 | tkMessageBox This module is used to display message boxes in your applications. |
Standard attributes
Let us look at how some of their common attributes, such as sizes, colors and fonts are specified.
Geometry Management
All Tkinter widgets have access to the specific geometry management methods, which have the purpose of organizing widgets throughout the parent widget area. Tkinter exposes the following geometry manager classes: pack, grid, and place.
- The pack() Method − This geometry manager organizes widgets in blocks before placing them in the parent widget.
- The grid() Method − This geometry manager organizes widgets in a table-like structure in the parent widget.
- The place() Method − This geometry manager organizes widgets by placing them in a specific position in the parent widget.
Python doesn’t come prepackaged with Windows, but that doesn’t mean Windows users won’t find the flexible programming language useful. It’s not quite a simple as installing the newest version however, so let’s make sure you get the right tools for the task at hand.
First released in 1991, Python is a popular high-level programming language used for general purpose programming. Thanks to a design philosophy that emphasizes readability it has long been a favorite of hobby coders and serious programmers alike. Not only is it an easy language (comparatively speaking, that is) to pick up but you’ll find thousands of projects online that require you have Python installed to use the program.
Which Version Do You Need?
Unfortunately, there was a significant update to Python several years ago that created a big split between Python versions. This can make things a bit confusing to newcomers, but don’t worry. We’ll walk you through installing both major versions
When you visit the Python for Windows download page, you’ll immediately see the division. Right at the top, square and center, the repository asks if you want the latest release of Python 2 or Python 3 (2.7.13 and 3.6.1, respectively, as of this tutorial).
Windows Gui Downloads
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Newer is better, right? Maybe so, maybe not. The version you want depends on your end goal. Let’s say, for example, that you read our article about expanding your Minecraft world with MCDungeon and are excited to add cool stuff to your worlds. That project is coded in Python and requires Python 2.7—you can’t run the MCDungeon project with Python 3.6. In fact, if you’re exploring hobby projects like MCDungeon, you’ll find that nearly all of them use 2.7. If your goal is to get some project that ends in a “.py” extension up and running, then there’s a very, very good chance you’ll need 2.7 for it.
On the other hand, if you’re looking to actually learn Python, we recommend installing both versions side by side (which you can do with zero risk and only a tiny bit of setup hassle). This lets you work with the newest version of the language, but also run older Python scripts (and test backwards compatibility for newer projects). Comparing the two versions is an article unto itself, though, so we’ll defer to the Python project wiki where you can read their well written overview of the differences.
You can download just Python 2 or Python 3 if you’re sure you only need a particular version. We’re going the distance today and will be installing both of them, so we recommend you download both versions and do the same. Under the main entry for both versions you’ll see an “x86-64” installer, as seen below.
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This installer will install the appropriate 32-bit or 64-bit version on your computer automatically (here’s some further reading if you want to know more about the differences between the two).
How to Install Python 2
Installing Python 2 is a snap, and unlike in years past, the installer will even set the path variable for you (something we’ll be getting into a bit later). Download and run the installer, select “Install for all users,” and then click “Next.”
On the directory selection screen, leave the directory as “Python27” and click “Next.”
On the customization screen, scroll down, click “Add python.exe to Path,” and then select “Will be installed on local hard drive.” When you’re done, click “Next.”
You don’t have to make any more decisions after this point. Just click through the wizard to complete the installation. When the installation is finished, you can confirm the installation by opening up Command Prompt and typing the following command:
Success! If all you need is Python 2.7 for some project or another, you can stop right here. It’s installed, the path variable is set, and you’re off to the races.
How to Install Python 3
If you want to learn the newest version of Python, you’ll need to install Python 3. You can install it alongside Python 2.7 with no problems, so go ahead and download and run the installer now.
![Python Windows Gui Programming Python Windows Gui Programming](/uploads/1/2/5/0/125048673/797371140.png)
On the first screen, enable the “Add Python 3.6 to PATH” option and then click “Install Now.”
Next, you have a decision to make. Clicking the “Disable path length limit” option removes the limitation on the MAX_PATH variable. This change won’t break anything, but will allow Python to use long path names. Since many Python programmers are working in Linux and other *nix systems where path name length isn’t an issue, turning this on in advance can help smooth over any path-related issues you might have while working in Windows.
Python Gui Programming Platforms For Windows
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We recommend go ahead and selecting this option. If you know you don’t want to disable the path length limit, you can just click “Close” to finish the installation. And, if you want to read more about the issue before committing to the change, read up here.
If you’re only installing Python 3, you can use the same command line trick of typing
python -v
that we used above to check that it is installed correctly and the path variable is set. If you’re installing both versions, however, you need to make the quick tweak found in the following section.Adjust System Variables So You Can Access Both Python Versions From the Command Line
This section of the tutorial is completely optional, but will allow you to quickly access both versions of Python from the command line. After installing both versions of Python, you may have noticed a little quirk. Even though we enabled the system path for both Python installations, typing “python” at the command prompt only points you to Python 2.7.
The reason for this is simple: the variable (whether automatically adjusted by an installer or manually tweaked) simply points at a directory, and every executable in that directory becomes a command line command. If there are two directories listed and both have a “python.exe” file in them, whichever directory is higher in the list of variables gets used. And, if there is a variable set for the system and the user, the system path takes precedence over the user path.
The latter is exactly what’s happening in this case: the Python 2 installer edited the system wide variable and the Python 3 installer added a user level variable—and we can confirm this by looking at the Windows’ environment variables.
Python Windows 10 Gui Programming
Hit Start, type “advanced system settings,” and then select the “View advanced system settings” option. In the “System Properties” window that opens, on the “Advanced” tab, click the “Environment Variables” button.
Here, you can see Python 3 listed in the “User variables” section and Python 2 listed in the “System variables” section.
There are a few ways you can remedy this situation. The simplest (albeit the one with the least functionality) is to just remove the entry for the version of Python you plan on using the least. While that’s simple, it’s also not very much fun. Instead we can make another change that will give us access to “python” for Python 2 and “python3” for Python 3.
To do this, fire up File Manager and head to the folder where you installed Python 3 (
C:Users[username]AppDataLocalProgramsPythonPython36
by default). Make a copy of the “python.exe” file, and rename that copy (not the original) to “python3.exe”.Open a new command prompt (the environmental variables refresh with each new command prompt you open), and type “python3 –version”.
Boom! You can now use the “python” command at the Command Prompt when you want to use Python 2.7 and the “python3” command when you want to use Python 3.
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If, for whatever reason, you don’t find this a satisfactory solution, you can always reorder the environmental variables. Be sure to brush up with our tutorial first if you’re not comfortable editing those variables.
Please note, however, that regardless of which method you use it is important to leave the original python.exe intact as the applications in the /scripts/ subdirectory for both versions of Python rely on that filename and will fail if it is missing.
After a little installing and a little tweaking, you have both versions installed and you’re ready for whatever Python project you want to tackle.
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