Javier and I were bored of sending us scripts and functions by whatsapp, so we decided to make a compilation of the most useful functions, even create some together. The project is called PyLejandria thanks to the library of Alexandria, where it is said that a colossal amount of knowledge resided. The project is not at all serious, but we will try to do the best we can with our current level of programming.
GUI
MATH
MODULE
TOOLS
UPLOAD
pip install pylejandria or copy from PyPi.
If you need help you can import the package and use the example function, it will open an interface that will show you all the attributes of the module and its description. This are the following examples, in this case we will see the help of the "gui" module
# Import the module
from pylejandria import gui
# Run the example if we run the script directly
if __name__ == '__main__':
gui.example()
Open your favorite terminal and run the following commands
# Import the module
from pylejandria import gui
# Run the example
gui.example()
Tk files are cascade files that wrap around the interface system of the tkinter module. The idea is to have a structure similar to kivy or QML files, it also has a system of styles with a format similar to CSS. The main idea of this format is to create separate interfaces from the functional file, for a better organization and have the possibility of editing the interface from the code since it is a text file. It should be noted that you should know about the tkinter module.
This is the minimal configuration for a simple window.
We start with a "Tk", which is the base widget of tkinter, then with an extra level of indentation we state the properties that we want. Here is the syntax.
It is important to pay attention to the spaces, since at the moment the project is in the initial phases and there are no considerations towards these cases. This could change in the future.
Tk
.geometry: '500x500'
.title: 'Simple UI'
bg: '#181818'
To run the tk file we use this simple code, what it does is import the load of the function from the pylejandria.gui module, then we create a window variable that will store the window built from the given file, we also pass the "__file__" as the second parameter, this is necessary in case we have functions for our interface, otherwise we can skip it. (But it is recommended to use it in any case.)
# Import load from pylejandria.gui module
from pylejandria.gui import load
# Use this if statement, is important to avoid recursive imports
if __name__ == '__main__':
window = load('gui.tk', __file__)
window.mainloop()
Now let's see a more complex example to implement functions and the id system. Here is the new syntax.
.tk file
Tk
.title: 'Simple UI'
bg: '#181818'
Frame
bg: '#323232'
.pack: {}
Frame
id: 'topleft_frame'
bg: '#ff0000'
width: 200
height: 200
.grid: {'row': 0, 'column': 0, 'padx': (50, 0), 'pady': (50, 0)}
Frame
id: 'topright_frame'
bg: '#ffff00'
width: 200
height: 200
.grid: {'row': 0, 'column': 1, 'padx': 50, 'pady': (50, 0)}
Frame
id: 'bottomleft_frame'
bg: '#00ffff'
width: 200
height: 200
.grid: {'row': 1, 'column': 0, 'padx': (50, 0), 'pady': 50}
Frame
id: 'bottomright_frame'
bg: '#00ff00'
width: 200
height: 200
.grid: {'row': 1, 'column': 1, 'padx': 50, 'pady': 50}
Frame
bg: 'gray'
.pack: {}
Button
text: 'change top left'
command: $change(#topleft_frame | '#ff0000' | '#800000')
.grid: {'row': 0, 'column': 0}
Button
text: 'change top right'
command: $change(#topright_frame | '#ffff00' | '#808000')
.grid: {'row': 0, 'column': 1}
Button
text: 'change bottom left'
command: $change(#bottomleft_frame | '#00ffff' | '#008080')
.grid: {'row': 0, 'column': 2}
Button
text: 'change bottom right'
command: $change(#bottomright_frame | '#00ff00' | '#008000')
.grid: {'row': 0, 'column': 3}
.py file
# Import load from pylejandria.gui module
from pylejandria.gui import load
# Define the change function, this will be called by the buttons
def change(widget: tk.Widget, color1: str, color2: str) -> None:
"""
Change the color of the background of the widget based on its current
color. If the current color is equal to the first color then we choose the
second one and viceversa.
"""
widget['bg'] = color1 if widget['bg'] == color2 else color2
# Use this if statement, is important to avoid recursive imports
if __name__ == '__main__':
window = load(path, __file__)
window.mainloop()
| Name | User |
|---|---|
| Armando Chaparro | TheCodingStudent |
PyLejandria by Armando Chaparro is licensed under a MIT License. See LICENSE.md.
Copyright © 2022 Armando Chaparro
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Python useful functions
We found that pylejandria demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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