Python Qt6 : tool for game development with PNG images.

Today, I worked with art artificial intelligence, to create tool for my game development.

I used python and PyQt6 and this tool help me to remove border, resize, split, rename and save images as PNG file type for Godot game engine.

Python Qt6 : ... management of installations and build python package.

Yesterday I created a small project for managing Python packages and building a new package based on added modules. I only tested the local installations of various Python versions and the creation of a new package, but it worked.

python catafest_build_package_001.py
🔍 Verificare module standard...
[✓] Modul standard 'json' este disponibil.
[✓] Modul standard 'subprocess' este disponibil.
[✓] Modul standard 'platform' este disponibil.
[✓] Modul standard 'datetime' este disponibil.
[✓] Modul standard 'os' este disponibil.
[✓] Modul standard 'sys' este disponibil.

📦 Verificare și instalare module pip...
[✓] Modulul 'PyQt6' este deja instalat.
[✓] Modulul 'build' este deja instalat.
* Creating isolated environment: venv+pip...
* Installing packages in isolated environment:
  - setuptools
  - wheel
...

Python Qt6 : Use python with ffmpeg tool ...

If you download a video from youtube with high resolution using a tool as yt-dlp then you can get two files with video and audio content:

... one with be with .f401.mp4 and another with .f251-9.webm and using the ffmpeg tool you can create one .mp4 file with both audio and video content.

Let's see a source code with python and PyQt6 module to search into D:\Software folder and create the mp4 file.

import os
import subprocess
from PyQt6.QtWidgets import (
    QApplication, QWidget, QVBoxLayout, QPushButton,
    QListWidget, QMessageBox
)
# fisier download : yt-dlp.exe -vU https://www.youtube.com/watch?v=xxxxxx -f bestvideo*+bestaudio/best
FOLDER_PATH = r"D:\Software"

class FFmpegMerger(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Combinare Video + Audio cu FFmpeg")
        self.resize(600, 400)

        self.layout = QVBoxLayout()
        self.file_list = QListWidget()
        self.process_button = QPushButton("Prelucrează în MP4")

        self.layout.addWidget(self.file_list)
        self.layout.addWidget(self.process_button)
        self.setLayout(self.layout)

        self.process_button.clicked.connect(self.process_files)

        self.populate_file_list()

    def populate_file_list(self):
        files = os.listdir(FOLDER_PATH)
        video_files = [f for f in files if f.endswith(".f401.mp4")]
        audio_files = [f for f in files if f.endswith(".f251-9.webm")]

        base_names = set(f.split(".f401.mp4")[0] for f in video_files)
        candidates = []

        for base in base_names:
            audio_name = f"{base}.f251-9.webm"
            output_name = f"{base}.mp4"
            if audio_name in audio_files and output_name not in files:
                candidates.append(base)

        for name in candidates:
            self.file_list.addItem(name)

    def process_files(self):
        for i in range(self.file_list.count()):
            base = self.file_list.item(i).text()
            video_path = os.path.join(FOLDER_PATH, f"{base}.f401.mp4")
            audio_path = os.path.join(FOLDER_PATH, f"{base}.f251-9.webm")
            output_path = os.path.join(FOLDER_PATH, f"{base}.mp4")

            cmd = [
                "ffmpeg",
                "-i", video_path,
                "-i", audio_path,
                "-c:v", "copy",
                "-c:a", "aac",
                "-strict", "experimental",
                output_path
            ]

            try:
                subprocess.run(cmd, check=True)
            except subprocess.CalledProcessError as e:
                QMessageBox.critical(self, "Eroare", f"Eroare la procesarea {base}: {e}")
                return

        QMessageBox.information(self, "Succes", "Toate fișierele au fost prelucrate cu succes!")

if __name__ == "__main__":
    app = QApplication([])
    window = FFmpegMerger()
    window.show()
    app.exec()

Python Qt6 : simple celtic knots tool with SVG file format.

Today, I try to create SVG file with an celtic knot design tool.

I used random values from -360 up to 360 for for Twist 1, Twist 2, and Twist 3 sliders.

The basic function is this, is created by artificial intelligence and not works very well.

        # Generate star polygon vertices
        points_cw = []
        points_ccw = []
        for i in range(steps):
            t = 2 * math.pi * i / steps
            r = outer_radius if i % 2 == 0 else inner_radius
            x_cw = center[0] + r * math.cos(t)
            y_cw = center[1] + r * math.sin(t)
            x_ccw = center[0] + r * math.cos(-t + math.pi / max(lobes, 1))
            y_ccw = center[1] + r * math.sin(-t + math.pi / max(lobes, 1))
            points_cw.append((x_cw, y_cw))
            points_ccw.append((x_ccw, y_ccw))

See one random example with this tool:

Python Qt6 : simple merge sprites images with unittest feature.

Today, I created one python tool script with the artificial intelligence to merge sprites images.

I used the artificial intelligence to add unittest to create default images with PIL to test the result.

You can select your folder , select the align of merge features or test with unittest button.

This is the result and works well:

import os
import unittest
from PIL import Image, ImageDraw, ImageFont, ImageQt
import shutil
from PyQt6.QtWidgets import QApplication, QMainWindow, QPushButton, QFileDialog, QLabel, QVBoxLayout, QWidget, QComboBox
from PyQt6.QtGui import QPixmap
from PyQt6.QtCore import Qt
import sys

def create_test_image(path, size, number):
    img = Image.new('RGBA', size, (255, 255, 255, 255))
    draw = ImageDraw.Draw(img)
    # Simplified to just draw the number with a basic color background
    draw.rectangle((0, 0, size[0], size[1]), fill=(0, 100 * number % 255, 0, 255))
    try:
        font = ImageFont.load_default()
    except:
        font = None
    draw.text((size[0]//2-5, size[1]//2-5), str(number), fill=(255, 255, 255, 255), font=font)
    img.save(path, 'PNG')

def merge_sprites(folder_path, output_horizontal, output_vertical):
    images = [Image.open(os.path.join(folder_path, f)) for f in os.listdir(folder_path) if f.endswith(('.png', '.jpg', '.jpeg'))]
    
    if not images:
        return None, None
    
    width, height = images[0].size
    
    # Horizontal merge
    total_width = width * len(images)
    horizontal_image = Image.new('RGBA', (total_width, height))
    for i, img in enumerate(images):
        horizontal_image.paste(img, (i * width, 0))
    horizontal_image.save(output_horizontal, 'PNG')
    
    # Vertical merge
    total_height = height * len(images)
    vertical_image = Image.new('RGBA', (width, total_height))
    for i, img in enumerate(images):
        vertical_image.paste(img, (0, i * height))
    vertical_image.save(output_vertical, 'PNG')
    
    return horizontal_image, vertical_image

class TestSpriteMerger(unittest.TestCase):
    def setUp(self):
        self.test_folder = 'test_images'
        self.size = (50, 20)
        os.makedirs(self.test_folder, exist_ok=True)
        for i in range(3):
            create_test_image(os.path.join(self.test_folder, f'test_{i+1}.png'), self.size, i+1)
    
    def test_merge_horizontal(self):
        output_h = 'test_merged_horizontal.png'
        output_v = 'test_merged_vertical.png'
        h_img, _ = merge_sprites(self.test_folder, output_h, output_v)
        
        self.assertIsNotNone(h_img, "Horizontal merge failed")
        self.assertEqual(h_img.size, (self.size[0] * 3, self.size[1]))
    
    def test_merge_vertical(self):
        output_h = 'test_merged_horizontal.png'
        output_v = 'test_merged_vertical.png'
        _, v_img = merge_sprites(self.test_folder, output_h, output_v)
        
        self.assertIsNotNone(v_img, "Vertical merge failed")
        self.assertEqual(v_img.size, (self.size[0], self.size[1] * 3))
    
    def tearDown(self):
        if os.path.exists(self.test_folder):
            shutil.rmtree(self.test_folder)
        for f in ['test_merged_horizontal.png', 'test_merged_vertical.png']:
            if os.path.exists(f):
                os.remove(f)

class SpriteMergerApp(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Sprite Merger")
        self.setGeometry(100, 100, 800, 600)
        
        self.folder_path = ""
        
        layout = QVBoxLayout()
        
        self.select_button = QPushButton("Select Folder")
        self.select_button.clicked.connect(self.select_folder)
        layout.addWidget(self.select_button)
        
        self.merge_type = QComboBox()
        self.merge_type.addItems(["Horizontal", "Vertical"])
        layout.addWidget(self.merge_type)
        
        self.process_button = QPushButton("Process Selected Folder")
        self.process_button.clicked.connect(self.process_folder)
        layout.addWidget(self.process_button)
        
        self.test_button = QPushButton("Run Unit Test")
        self.test_button.clicked.connect(self.run_unit_test)
        layout.addWidget(self.test_button)
        
        self.result_label = QLabel("No image processed")
        layout.addWidget(self.result_label)
        
        self.image_label = QLabel()
        layout.addWidget(self.image_label)
        
        container = QWidget()
        container.setLayout(layout)
        self.setCentralWidget(container)
    
    def select_folder(self):
        self.folder_path = QFileDialog.getExistingDirectory(self, "Select Sprite Folder")
        self.result_label.setText(f"Selected: {self.folder_path}")
    
    def process_folder(self):
        if not self.folder_path:
            self.result_label.setText("Please select a folder first")
            return
        h_img, v_img = merge_sprites(self.folder_path, 'merged_horizontal.png', 'merged_vertical.png')
        selected_type = self.merge_type.currentText()
        
        img = h_img if selected_type == "Horizontal" else v_img
        if img:
            pixmap = QPixmap.fromImage(ImageQt.ImageQt(img))
            self.image_label.setPixmap(pixmap.scaled(700, 500, aspectRatioMode=Qt.AspectRatioMode.KeepAspectRatio))
            self.result_label.setText(f"{selected_type} merge completed")
        else:
            self.result_label.setText(f"{selected_type} merge failed")
    
    def run_unit_test(self):
        suite = unittest.TestLoader().loadTestsFromTestCase(TestSpriteMerger)
        result = unittest.TextTestRunner().run(suite)
        
        test_folder = 'test_images'
        os.makedirs(test_folder, exist_ok=True)
        for i in range(3):
            create_test_image(os.path.join(test_folder, f'test_{i+1}.png'), (50, 20), i+1)
        
        h_img, v_img = merge_sprites(test_folder, 'test_merged_horizontal.png', 'test_merged_vertical.png')
        selected_type = self.merge_type.currentText()
        
        img = h_img if selected_type == "Horizontal" else v_img
        if img:
            pixmap = QPixmap.fromImage(ImageQt.ImageQt(img))
            self.image_label.setPixmap(pixmap.scaled(700, 500, aspectRatioMode=Qt.AspectRatioMode.KeepAspectRatio))
            self.result_label.setText(f"Unit tests: {result.testsRun} run, {len(result.failures)} failed, showing {selected_type.lower()} merge")
        else:
            self.result_label.setText(f"Unit tests: {result.testsRun} run, {len(result.failures)} failed, merge failed")

if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = SpriteMergerApp()
    window.show()
    sys.exit(app.exec())

Python Qt6 : ... simple resize image files.

I like the combination of Python development and the inclusion of the PyQt6 module. It is very fast and stable and allows me to create all sorts of tools to use.

Today I will show you another handy script that allows you to read all the image files from a folder and, depending on the selections: height, length, and/or aspect ratio, resize them and then place them in a folder created specifically for the resulting images.

Here is how the script looks, I clearly used artificial intelligence and it didn't take more than a few minutes, my evaluation, testing, and rearranging the interface took longer ...

import sys
import os
from datetime import datetime
from PyQt6.QtWidgets import QApplication, QMainWindow, QWidget, QVBoxLayout, QPushButton, QFileDialog, QLineEdit, QCheckBox, QLabel, QMessageBox
from PyQt6.QtCore import Qt
from PIL import Image

class ResizeApp(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Image Resizer")
        self.setGeometry(100, 100, 400, 200)

        layout = QVBoxLayout()
        central_widget = QWidget()
        central_widget.setLayout(layout)
        self.setCentralWidget(central_widget)

        self.folder_button = QPushButton("Select Folder")
        self.folder_button.clicked.connect(self.select_folder)
        layout.addWidget(self.folder_button)

        self.width_edit = QLineEdit("800")
        self.width_edit.setPlaceholderText("Width (px)")
        layout.addWidget(QLabel("Width:"))
        layout.addWidget(self.width_edit)

        self.height_edit = QLineEdit("600")
        self.height_edit.setPlaceholderText("Height (px)")
        layout.addWidget(QLabel("Height:"))
        layout.addWidget(self.height_edit)

        self.aspect_ratio = QCheckBox("Maintain Aspect Ratio")
        self.aspect_ratio.setChecked(True)
        layout.addWidget(self.aspect_ratio)

        self.resize_button = QPushButton("Resize Images")
        self.resize_button.clicked.connect(self.resize_images)
        layout.addWidget(self.resize_button)

        self.folder_path = ""

    def select_folder(self):
        self.folder_path = QFileDialog.getExistingDirectory(self, "Select Image Folder")
        if self.folder_path:
            self.folder_button.setText(f"Selected: {os.path.basename(self.folder_path)}")

    def resize_images(self):
        if not self.folder_path:
            QMessageBox.warning(self, "Error", "Please select a folder.")
            return

        try:
            width = int(self.width_edit.text())
            height = int(self.height_edit.text())
        except ValueError:
            QMessageBox.warning(self, "Error", "Please enter valid width and height.")
            return

        if width <= 0 or height <= 0:
            QMessageBox.warning(self, "Error", "Width and height must be positive.")
            return

        date_str = datetime.now().strftime("%d%m%y_%H%M")
        aspect_str = "asp_on" if self.aspect_ratio.isChecked() else "asp_off"
        output_folder = os.path.join(self.folder_path, f"resized_{date_str}_{height}_{aspect_str}")
        os.makedirs(output_folder, exist_ok=True)

        for file_name in os.listdir(self.folder_path):
            if file_name.lower().endswith(('.png', '.jpg', '.jpeg', '.bmp', '.gif')):
                image_path = os.path.join(self.folder_path, file_name)
                try:
                    with Image.open(image_path) as img:
                        if self.aspect_ratio.isChecked():
                            img.thumbnail((width, height), Image.Resampling.LANCZOS)
                        else:
                            img = img.resize((width, height), Image.Resampling.LANCZOS)
                        output_path = os.path.join(output_folder, f"resized_{date_str}_{height}_{aspect_str}_{file_name}")
                        img.save(output_path)
                except Exception as e:
                    QMessageBox.warning(self, "Error", f"Failed to process {file_name}: {str(e)}")

        QMessageBox.information(self, "Success", f"Images resized and saved to {output_folder}!")

if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = ResizeApp()
    window.show()
    sys.exit(app.exec())

Python Qt6 : ... simple processing file.

Today I will show you an simple python script with PyQt6.

This script ai build using the artificial inteligence and I tested will process your files by slections : copy to another folder , zip all selected and delete all selected.

import sys
import os
import re
import shutil
import zipfile
from PyQt6.QtWidgets import (QApplication, QMainWindow, QWidget, QVBoxLayout, QHBoxLayout, 
                            QPushButton, QListWidget, QFileDialog, QMessageBox, QDialog, QLabel)
from PyQt6.QtCore import Qt

class CriteriaDialog(QDialog):
    def __init__(self, folder, parent=None):
        super().__init__(parent)
        self.setWindowTitle(f"Processing Folder: {folder}")
        self.layout = QVBoxLayout(self)
        self.layout.addWidget(QLabel(f"Selected folder: {folder}"))
        self.ok_button = QPushButton("OK")
        self.ok_button.clicked.connect(self.accept)
        self.layout.addWidget(self.ok_button)

class DuplicateFinder(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Duplicate File Finder")
        self.setGeometry(100, 100, 600, 400)
        
        self.central_widget = QWidget()
        self.setCentralWidget(self.central_widget)
        self.layout = QVBoxLayout(self.central_widget)
        
        self.file_list = QListWidget()
        self.file_list.setSelectionMode(QListWidget.SelectionMode.MultiSelection)
        self.layout.addWidget(self.file_list)
        
        button_layout = QHBoxLayout()
        self.select_button = QPushButton("Select Folder")
        self.select_button.clicked.connect(self.select_folder)
        button_layout.addWidget(self.select_button)
        
        self.copy_button = QPushButton("Copy To")
        self.copy_button.clicked.connect(self.copy_files)
        button_layout.addWidget(self.copy_button)
        
        self.zip_button = QPushButton("Zip All")
        self.zip_button.clicked.connect(self.zip_files)
        button_layout.addWidget(self.zip_button)
        
        self.delete_button = QPushButton("Delete All")
        self.delete_button.clicked.connect(self.delete_files)
        button_layout.addWidget(self.delete_button)
        
        self.layout.addLayout(button_layout)
        
        self.files = []
        self.selected_folder = ""
        
    def select_folder(self):
        folder = QFileDialog.getExistingDirectory(self, "Select Folder")
        if folder:
            self.selected_folder = folder
            dialog = CriteriaDialog(folder, self)
            if dialog.exec():
                self.files = []
                self.file_list.clear()
                self.scan_folder(folder)
                self.find_duplicates()
            
    def scan_folder(self, folder):
        for root, _, files in os.walk(folder):
            for file in files:
                file_path = os.path.join(root, file)
                self.files.append({
                    'path': file_path,
                    'name': os.path.basename(file_path),
                    'size': os.path.getsize(file_path),
                    'extension': os.path.splitext(file_path)[1]
                })
                
    def find_duplicates(self):
        duplicates = self.find_by_similar_name()
        self.display_duplicates(duplicates)
        
    def find_by_similar_name(self):
        duplicates = []
        name_groups = {}
        pattern = r'(.+?)(?:[\s_-]*\d{3,}|[\s_-]*\d{1,2}|_)?(?:\.\w+)?$'
        
        for file in self.files:
            match = re.match(pattern, file['name'])
            if match:
                base_name = match.group(1)
                if base_name in name_groups:
                    name_groups[base_name].append(file)
                else:
                    name_groups[base_name] = [file]
        
        for base_name, files in name_groups.items():
            if len(files) > 1:
                duplicates.extend(files)
                
        return duplicates
    
    def display_duplicates(self, duplicates):
        self.file_list.clear()
        for file in duplicates:
            self.file_list.addItem(file['path'])
            
    def copy_files(self):
        if not self.file_list.selectedItems():
            QMessageBox.warning(self, "Warning", "No files selected!")
            return
        dest_folder = QFileDialog.getExistingDirectory(self, "Select Destination Folder")
        if dest_folder:
            for item in self.file_list.selectedItems():
                file_path = item.text()
                dest_path = os.path.join(dest_folder, os.path.basename(file_path))
                shutil.copy2(file_path, dest_path)
            QMessageBox.information(self, "Success", "Files copied!")
            
    def zip_files(self):
        if not self.file_list.selectedItems():
            QMessageBox.warning(self, "Warning", "No files selected!")
            return
        zip_path = QFileDialog.getSaveFileName(self, "Save Zip File", "", "Zip Files (*.zip)")[0]
        if zip_path:
            with zipfile.ZipFile(zip_path, 'w', zipfile.ZIP_DEFLATED) as zipf:
                for item in self.file_list.selectedItems():
                    file_path = item.text()
                    zipf.write(file_path, os.path.basename(file_path))
            QMessageBox.information(self, "Success", "Files zipped!")
        
    def delete_files(self):
        if not self.file_list.selectedItems():
            QMessageBox.warning(self, "Warning", "No files selected!")
            return
        reply = QMessageBox.question(self, "Confirm", "Delete selected files?",
                                  QMessageBox.StandardButton.Yes | QMessageBox.StandardButton.No)
        if reply == QMessageBox.StandardButton.Yes:
            for item in self.file_list.selectedItems():
                os.remove(item.text())
            self.file_list.clear()
            QMessageBox.information(self, "Success", "Files deleted!")

if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = DuplicateFinder()
    window.show()
    sys.exit(app.exec())

Python Qt6 : simple animation with sprites.

Today I created with addon for Blender 3D and result is an image with sprites ...

I used that image with sprites and PyQt6 to animate my desktop screen, see the result:

This is the source code I used:

import sys
from PyQt6.QtWidgets import QApplication, QLabel, QWidget, QVBoxLayout, QMenu

# diff PyQt6 versus old PyQt
from PyQt6.QtGui import QAction

from PyQt6.QtGui import QPixmap, QIcon
from PyQt6.QtCore import QTimer, Qt

class AnimatedWindow(QWidget):
    def __init__(self):
        super().__init__()

        # set window
        self.setWindowFlags(Qt.WindowType.FramelessWindowHint | Qt.WindowType.WindowStaysOnTopHint)
        self.setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground)

        # build layout 
        layout = QVBoxLayout()
        self.label = QLabel(self)
        layout.addWidget(self.label)
        self.setLayout(layout)

        # load sprite sheet from Camera_256px.png file name
        sprite_sheet = QPixmap("Camera_256px.png")  
        self.frame_width = sprite_sheet.width() // 11  # because I have 11 sprite on image
        self.sprites = [sprite_sheet.copy(i * self.frame_width, 0, self.frame_width, sprite_sheet.height()) for i in range(11)]
        self.current_frame = 0

        # 
        self.timer = QTimer()
        self.timer.timeout.connect(self.update_animation)
        self.timer.start(150)  # Schimbă frame-ul la fiecare 150 ms

        # 
        self.resize(self.frame_width, sprite_sheet.height())

        # left down on screen 
        screen = QApplication.primaryScreen().geometry()
        self.move(10, screen.height() - self.height() - 10)

    def update_animation(self):
        """Actualizează sprite-ul în QLabel"""
        self.label.setPixmap(self.sprites[self.current_frame])
        self.current_frame = (self.current_frame + 1) % len(self.sprites)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = AnimatedWindow()
    window.show()
    sys.exit(app.exec())

Python Qt6 : Simple tool to convert HTML.

This is based on old tutorial from this post.

I add a class AgentPY class with all features for processing input and HtmlEditor class for .

Maybe I will use the agentpy module , but now works well without agents.

This is the source code:

from PyQt6.QtWidgets import QApplication, QMainWindow, QTextEdit, QMenu
from bs4 import BeautifulSoup

class AgentPy:
    """Clasă pentru procesarea și curățarea HTML-ului."""
    @staticmethod
    def clean_all_styles(html_content):
        soup = BeautifulSoup(html_content, 'html.parser')
        for tag in soup.find_all(True):
            if tag.name == "a":
                attrs_to_keep = {"href": tag.attrs.get("href")} if "href" in tag.attrs else {}
                tag.attrs = attrs_to_keep
            else:
                tag.attrs = {}
        return str(soup)

    @staticmethod
    def clean_empty_tags(html_content):
        soup = BeautifulSoup(html_content, 'html.parser')
        for tag in soup.find_all(True):
            if not tag.contents or all(str(content).strip() == "" for content in tag.contents):
                tag.decompose()
        return str(soup)

    @staticmethod
    def clean_duplicate_tags(html_content):
        soup = BeautifulSoup(html_content, 'html.parser')
        unique_tags = {}
        for tag in soup.find_all(True):
            tag_key = (tag.name, str(tag.attrs))
            if tag_key in unique_tags:
                tag.decompose()
            else:
                unique_tags[tag_key] = tag
        return str(soup)

    @staticmethod
    def convert_to_html(source_code):
        """Convertim caractere speciale din cod sursă în entități HTML."""
        # Creăm un dicționar pentru conversia caracterelor
        html_entities = {
            '<': '<',
            '>': '>',
            '&': '&',
            '"': '"',
            "'": ''',
            '[': '[',
            ']': ']',
        }
        # Înlocuim caracterele în codul sursă
        for char, entity in html_entities.items():
            source_code = source_code.replace(char, entity)
        return source_code

class HtmlEditor(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("catafest-cleaner-HTML")
        self.setGeometry(100, 100, 800, 600)

        # Editor de text
        self.editor = QTextEdit(self)
        self.setCentralWidget(self.editor)

        # Meniu contextual
        self.editor.setContextMenuPolicy(Qt.ContextMenuPolicy.CustomContextMenu)
        self.editor.customContextMenuRequested.connect(self.show_context_menu)

    def show_context_menu(self, position):
        menu = QMenu(self)
        clean_styles_action = menu.addAction("Clean basic HTML")
        clean_styles_action.triggered.connect(self.clean_all_styles)
        clean_empty_tags_action = menu.addAction("Clean Empty Tags")
        clean_empty_tags_action.triggered.connect(self.clean_empty_tags)
        clean_agentpy_action = menu.addAction("Clean AgentPy")
        clean_agentpy_action.triggered.connect(self.clean_duplicate_tags)
        convert_to_html_action = menu.addAction("Convert to HTML")  # Noua opțiune
        convert_to_html_action.triggered.connect(self.convert_to_html)
        menu.exec(self.editor.mapToGlobal(position))

    def clean_all_styles(self):
        html_content = self.editor.toPlainText()
        clean_html = AgentPy.clean_all_styles(html_content)
        self.editor.setPlainText(clean_html)

    def clean_empty_tags(self):
        html_content = self.editor.toPlainText()
        clean_html = AgentPy.clean_empty_tags(html_content)
        self.editor.setPlainText(clean_html)

    def clean_duplicate_tags(self):
        html_content = self.editor.toPlainText()
        clean_html = AgentPy.clean_duplicate_tags(html_content)
        self.editor.setPlainText(clean_html)

    def convert_to_html(self):
        source_code = self.editor.toPlainText()
        html_content = AgentPy.convert_to_html(source_code)
        self.editor.setPlainText(html_content)

if __name__ == "__main__":
    import sys
    from PyQt6.QtCore import Qt
    app = QApplication(sys.argv)
    window = HtmlEditor()
    window.show()
    sys.exit(app.exec())

Python Qt6 : Simple tool for clean HTML.

Today I make a simple tool to clean the HTML from style and more. I used artificial inteligence from copilot.

This is the result of this simple tool.

from PyQt6.QtWidgets import QApplication, QMainWindow, QTextEdit, QMenu
from bs4 import BeautifulSoup

class HtmlEditor(QMainWindow):
    def __init__(self):
        super().__init__()

        self.setWindowTitle("catafest-cleaner-HTML")  # Titlu actualizat
        self.setGeometry(100, 100, 800, 600)

        # Editor de text
        self.editor = QTextEdit(self)
        self.setCentralWidget(self.editor)

        # Meniu contextual
        self.editor.setContextMenuPolicy(Qt.ContextMenuPolicy.CustomContextMenu)
        self.editor.customContextMenuRequested.connect(self.show_context_menu)

    def show_context_menu(self, position):
        menu = QMenu(self)
        clean_styles_action = menu.addAction("Clean basic HTML")
        clean_styles_action.triggered.connect(self.clean_all_styles)
        clean_empty_tags_action = menu.addAction("Clean Empty Tags")
        clean_empty_tags_action.triggered.connect(self.clean_empty_tags)
        menu.exec(self.editor.mapToGlobal(position))

    def clean_all_styles(self):
        # Obține conținutul HTML din editor
        html_content = self.editor.toPlainText()

        # Utilizează BeautifulSoup pentru a procesa HTML-ul
        soup = BeautifulSoup(html_content, 'html.parser')

        # Elimină toate atributele, cu excepția celor din ancorele <a>
        for tag in soup.find_all(True):
            if tag.name == "a":  # Păstrează doar atributul 'href' pentru <a>
                attrs_to_keep = {"href": tag.attrs.get("href")} if "href" in tag.attrs else {}
                tag.attrs = attrs_to_keep
            else:
                tag.attrs = {}  # Elimină toate atributele pentru celelalte tag-uri

        # Actualizează conținutul editorului
        clean_html = str(soup)
        self.editor.setPlainText(clean_html)

    def clean_empty_tags(self):
        # Obține conținutul HTML din editor
        html_content = self.editor.toPlainText()

        # Utilizează BeautifulSoup pentru a procesa HTML-ul
        soup = BeautifulSoup(html_content, 'html.parser')

        # Elimină tag-urile goale
        for tag in soup.find_all(True):
            # Verifică tag-uri goale
            if not tag.contents or all(str(content).strip() == "" for content in tag.contents):  
                tag.decompose()  # Elimină tag-ul complet

        # Actualizează conținutul editorului
        clean_html = str(soup)
        self.editor.setPlainText(clean_html)

if __name__ == "__main__":
    import sys
    from PyQt6.QtCore import Qt
    app = QApplication(sys.argv)
    window = HtmlEditor()
    window.show()
    sys.exit(app.exec())

Python Qt6 : Dependency checker for python packages with pipdeptree and PyQt6.

Today I created this python script to test and check python package dependency.

You need to install the pipdeptree with the pip tool.

I used the Python 3.13.0rc1 version and the result is this:

This is the source code I used:

import sys
import subprocess
from PyQt6.QtWidgets import (
    QApplication, QMainWindow, QVBoxLayout, QTreeWidget, QTreeWidgetItem, QWidget
)
from PyQt6.QtWidgets import QHeaderView
from PyQt6.QtGui import QIcon
from PyQt6.QtWidgets import QStyle


class DependencyViewer(QMainWindow):
    def __init__(self):
        super().__init__()

        self.setWindowTitle("Dependency Checker")

        # Maximizarea ferestrei la lansare
        self.showMaximized()

        # Creează un QTreeWidget pentru afișarea dependențelor
        self.tree_widget = QTreeWidget()
        self.tree_widget.setHeaderLabels(["Dependency", "Status"])

        # Ajustează aliniamentul central pentru fiecare coloană
        for i in range(2):  # Pentru cele două coloane
            self.tree_widget.headerItem().setTextAlignment(i, Qt.AlignmentFlag.AlignCenter)

        # Configurarea automată a lățimii coloanelor
        self.tree_widget.header().setSectionResizeMode(QHeaderView.ResizeMode.ResizeToContents)

        # Layout
        layout = QVBoxLayout()
        layout.addWidget(self.tree_widget)

        container = QWidget()
        container.setLayout(layout)
        self.setCentralWidget(container)

        # Obține și afișează dependențele
        self.display_dependencies()

    def display_dependencies(self):
        try:
            # Rulează pipdeptree pentru a obține ierarhia dependențelor
            result = subprocess.run(['pipdeptree', '--warn', 'silence'], capture_output=True, text=True)
            dependencies = result.stdout.splitlines()

            for line in dependencies:
                # Determină nivelul de indentare pentru ierarhia dependențelor
                indent_level = len(line) - len(line.lstrip())
                dependency_name = line.strip()

                # Creează un item pentru fiecare dependență
                item = QTreeWidgetItem([dependency_name])

                # Atribuie iconițe pe baza compatibilității (exemplu simplificat)
                if "(*)" in dependency_name:  # Exemplu de incompatibilitate (poți schimba după caz)
                    item.setIcon(0, self.style().standardIcon(QStyle.StandardPixmap.SP_DialogCancelButton))
                    item.setText(1, "Incompatible")
                else:
                    item.setIcon(0, self.style().standardIcon(QStyle.StandardPixmap.SP_DialogApplyButton))
                    item.setText(1, "Compatible")

                # Adaugă item-ul în arbore
                if indent_level == 0:
                    self.tree_widget.addTopLevelItem(item)
                else:
                    # Alege ultimul item părinte și adaugă dependența ca sub-item
                    parent_item = self.tree_widget.topLevelItem(self.tree_widget.topLevelItemCount() - 1)
                    parent_item.addChild(item)

            # Extinde toate elementele din arbore
            self.tree_widget.expandAll()

        except Exception as e:
            error_item = QTreeWidgetItem(["Error", str(e)])
            error_item.setIcon(0, self.style().standardIcon(QStyle.StandardPixmap.SP_MessageBoxCritical))
            self.tree_widget.addTopLevelItem(error_item)


if __name__ == "__main__":
    from PyQt6.QtCore import Qt

    app = QApplication(sys.argv)
    viewer = DependencyViewer()
    viewer.show()
    sys.exit(app.exec())

Python 3.13.0rc1 : testing the elevenlabs with artificial intelligence.

Today I teste the elevenlabs python package to use it with artifical inteligence to create sound.

I install this python package with pip tool, I created a python script file and the basic script run well with the api key from the official website.

pip install elevenlabs
Collecting elevenlabs
...
Installing collected packages: websockets, sniffio, pydantic-core, h11, annotated-types, pydantic, httpcore, anyio, httpx,
elevenlabs
Successfully installed annotated-types-0.7.0 anyio-4.8.0 elevenlabs-1.52.0 h11-0.14.0 httpcore-1.0.7 httpx-0.28.1 
pydantic-2.10.6the official website pydantic-core-2.27.2 sniffio-1.3.1 websockets-15.0
...
pip install playsound
Collecting playsound
...
Installing collected packages: playsound
Successfully installed playsound-1.3.0
...
python elevenlabs_test_001.py
Fișierul audio a fost salvat la generated_audio.mp3

This is the source code:

import io  # Importarea bibliotecii io
from elevenlabs import ElevenLabs
from playsound import playsound
import tempfile
import os

# API Key pentru ElevenLabs
api_key = "API_KEY"
voice_id = "JBFqnCBsd6RMkjVDRZzb"


# Configurarea clientului ElevenLabs
client = ElevenLabs(api_key=api_key )

# Textul pe care vrei să-l convertești în audio
text = 'Hello! This is a test without mpv.'

# Generarea audio
audio_generator = client.generate(text=text, voice=voice_id)

# Colectarea datelor din generator într-un obiect BytesIO
audio_data = io.BytesIO()
for chunk in audio_generator:
    audio_data.write(chunk)
audio_data.seek(0)  # Resetarea pointerului la începutul streamului

# Specificarea căii de salvare pentru fișierul audio
save_path = 'generated_audio.mp3'

# Salvarea audio într-un fișier temporar
with tempfile.NamedTemporaryFile(delete=False, suffix='.mp3') as temp_audio:
    temp_audio.write(audio_data.read())
    temp_audio_path = temp_audio.name

# Redarea fișierului audio utilizând playsound
playsound(temp_audio_path)

# Salvarea fișierului audio generat într-o locație specificată
with open(save_path, 'wb') as f:
    audio_data.seek(0)  # Resetarea pointerului la începutul streamului pentru a citi din nou datele
    f.write(audio_data.read())

print(f'Fișierul audio a fost salvat la {save_path}')

Python 3.13.0 : OpenCV - part 002.

The PyQt6 python package and Fedora works great. I tested today this source code with opencv, numpy, PyQt6 python packages.

I install opencv python package with dnf5 tool:

root@localhost:/home/mythcat# dnf5 install  python3-opencv.x86_64

The source code let you to open, change a image and save using sliders and a reset option.

This is the source code:

import sys
import cv2
import numpy as np
from PyQt6.QtWidgets import QApplication, QMainWindow, QWidget, QVBoxLayout, QLabel, QSlider, QFileDialog, QPushButton, QHBoxLayout
from PyQt6.QtGui import QImage, QPixmap
from PyQt6.QtCore import Qt, pyqtSlot

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Real-Time Color Selection")
        self.setGeometry(100, 100, 1200, 800)

        # Create central widget and main layout
        central_widget = QWidget()
        self.setCentralWidget(central_widget)
        main_layout = QVBoxLayout(central_widget)

        # Create image label
        self.image_label = QLabel()
        main_layout.addWidget(self.image_label)

        # Initialize sliders
        self.lower_h = QSlider(Qt.Orientation.Horizontal)
        self.lower_s = QSlider(Qt.Orientation.Horizontal)
        self.lower_v = QSlider(Qt.Orientation.Horizontal)
        self.upper_h = QSlider(Qt.Orientation.Horizontal)
        self.upper_s = QSlider(Qt.Orientation.Horizontal)
        self.upper_v = QSlider(Qt.Orientation.Horizontal)

        # Set slider ranges
        for slider in [self.lower_h, self.upper_h]:
            slider.setRange(0, 179)
        for slider in [self.lower_s, self.lower_v, self.upper_s, self.upper_v]:
            slider.setRange(0, 255)

        # Set initial slider values
        self.lower_h.setValue(50)
        self.lower_s.setValue(100)
        self.lower_v.setValue(50)
        self.upper_h.setValue(130)
        self.upper_s.setValue(255)
        self.upper_v.setValue(255)

        # Connect sliders to update function
        self.lower_h.valueChanged.connect(self.update_hsv_range)
        self.lower_s.valueChanged.connect(self.update_hsv_range)
        self.lower_v.valueChanged.connect(self.update_hsv_range)
        self.upper_h.valueChanged.connect(self.update_hsv_range)
        self.upper_s.valueChanged.connect(self.update_hsv_range)
        self.upper_v.valueChanged.connect(self.update_hsv_range)

        # Create slider layouts with labels
        sliders_layout = QVBoxLayout()
        
        # Add slider pairs with labels
        slider_pairs = [
            ("Lower Hue", self.lower_h),
            ("Lower Saturation", self.lower_s),
            ("Lower Value", self.lower_v),
            ("Upper Hue", self.upper_h),
            ("Upper Saturation", self.upper_s),
            ("Upper Value", self.upper_v)
        ]

        for label_text, slider in slider_pairs:
            row_layout = QHBoxLayout()
            label = QLabel(label_text)
            label.setMinimumWidth(120)
            row_layout.addWidget(label)
            row_layout.addWidget(slider)
            sliders_layout.addLayout(row_layout)

        main_layout.addLayout(sliders_layout)

        # Add buttons
        button_layout = QHBoxLayout()
        
        self.reset_button = QPushButton("Reset Values")
        self.reset_button.clicked.connect(self.reset_values)
        button_layout.addWidget(self.reset_button)

        self.open_image_button = QPushButton("Open Image")
        self.open_image_button.clicked.connect(self.open_image)
        button_layout.addWidget(self.open_image_button)

        self.save_button = QPushButton("Save Image")
        self.save_button.clicked.connect(self.save_image)
        button_layout.addWidget(self.save_button)
        main_layout.addLayout(button_layout)

        # Process initial image
        self.process_image()

    def process_image(self):
        image_bgr = cv2.imread("image.png")
        if image_bgr is None:
            image_bgr = cv2.imread("default_image.png")
        
        self.image_bgr = image_bgr
        self.image_hsv = cv2.cvtColor(image_bgr, cv2.COLOR_BGR2HSV)

        # Create initial mask using current slider values
        lower_values = np.array([self.lower_h.value(), self.lower_s.value(), self.lower_v.value()])
        upper_values = np.array([self.upper_h.value(), self.upper_s.value(), self.upper_v.value()])
        
        mask_test = cv2.inRange(self.image_hsv, lower_values, upper_values)
        image_bgr_masked = cv2.bitwise_and(image_bgr, image_bgr, mask=mask_test)
        self.image_rgb = cv2.cvtColor(image_bgr_masked, cv2.COLOR_BGR2RGB)
        self.update_image()

    def update_image(self):
        height, width, channel = self.image_rgb.shape
        bytes_per_line = width * channel
        q_image = QImage(self.image_rgb.data, width, height, bytes_per_line, QImage.Format.Format_RGB888)
        pixmap = QPixmap.fromImage(q_image)
        self.image_label.setPixmap(pixmap.scaled(700, 500, Qt.AspectRatioMode.KeepAspectRatio))

    def update_hsv_range(self):
        lower_values = np.array([self.lower_h.value(), self.lower_s.value(), self.lower_v.value()])
        upper_values = np.array([self.upper_h.value(), self.upper_s.value(), self.upper_v.value()])
        mask_test = cv2.inRange(self.image_hsv, lower_values, upper_values)
        image_bgr_masked = cv2.bitwise_and(self.image_bgr, self.image_bgr, mask=mask_test)
        self.image_rgb = cv2.cvtColor(image_bgr_masked, cv2.COLOR_BGR2RGB)
        self.update_image()

    def reset_values(self):
        self.lower_h.setValue(50)
        self.lower_s.setValue(100)
        self.lower_v.setValue(50)
        self.upper_h.setValue(130)
        self.upper_s.setValue(255)
        self.upper_v.setValue(255)

    def open_image(self):
        filename, _ = QFileDialog.getOpenFileName(self, "Select Image File", "", "Image Files (*.png *.jpg *.jpeg)")
        if filename:
            self.image_bgr = cv2.imread(filename)
            if self.image_bgr is not None:
                self.image_hsv = cv2.cvtColor(self.image_bgr, cv2.COLOR_BGR2HSV)
                self.update_hsv_range()  # This will apply current filter and update display

    def save_image(self):
        filename, _ = QFileDialog.getSaveFileName(self, "Save Image", "", "PNG Files (*.png);;JPEG Files (*.jpg)")
        if filename:
            # Make sure filename has an extension
            if not filename.endswith(('.png', '.jpg', '.jpeg')):
                filename += '.png'
            # Convert and save
            output_image = cv2.cvtColor(self.image_rgb, cv2.COLOR_RGB2BGR)
            cv2.imwrite(filename, output_image)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec())

Python Qt6 : Use regular expression with PyQt6.

Today I tested a python source code with PyQt6.

This source code let you to clean the text by HTML tags and regular expression in realtime.

If you want to parse in realtime then check the Realtime and add the regular expresion in editbox.

This is the result:

This is the source code I used to parse realtime regular expresion on editbox

from PyQt6.QtWidgets import QApplication, QMainWindow, QTextEdit, QVBoxLayout, QHBoxLayout, QWidget, QPushButton, QCheckBox, QLineEdit, QLabel
from PyQt6.QtGui import QTextDocument
from PyQt6.QtCore import Qt
import re

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        self.setWindowTitle("HTML Cleaner")

        self.text_edit = QTextEdit()
        self.clean_button = QPushButton("Clean HTML")
        self.transform_div_checkbox = QCheckBox("Transform 
 tags")
        self.realtime_checkbox = QCheckBox("Realtime")
        self.regex_edit = QLineEdit()
        self.regex_edit.setPlaceholderText("Enter regex pattern")
        self.regex_edit.setEnabled(False)  # Dezactivăm inițial

        top_layout = QHBoxLayout()
        top_layout.addWidget(self.clean_button)
        top_layout.addWidget(self.transform_div_checkbox)
        top_layout.addWidget(QLabel("Regex:"))
        top_layout.addWidget(self.regex_edit)
        top_layout.addWidget(self.realtime_checkbox)

        main_layout = QVBoxLayout()
        main_layout.addLayout(top_layout)
        main_layout.addWidget(self.text_edit)

        container = QWidget()
        container.setLayout(main_layout)
        self.setCentralWidget(container)

        self.clean_button.clicked.connect(self.clean_html)
        self.realtime_checkbox.stateChanged.connect(self.toggle_realtime)
        self.regex_edit.textChanged.connect(self.realtime_update)

    def clean_html(self):
        html_text = self.text_edit.toPlainText()
        clean_text = self.remove_html_tags(html_text)
        self.text_edit.setPlainText(clean_text)

    def remove_html_tags(self, text):
        # Remove CSS
        text = re.sub(r'.*?', '', text, flags=re.DOTALL)
        # Remove JavaScript
        text = re.sub(r'.*?', '', text, flags=re.DOTALL)
        # Remove HTML comments
        text = re.sub(r'', '', text, flags=re.DOTALL)
        # Transform 
 tags if checkbox is checked
        if self.transform_div_checkbox.isChecked():
            text = re.sub(r']*>', '
', text)
        # Remove HTML tags but keep content
        clean = re.compile('<.*?>')
        text = re.sub(clean, '', text)
        # Remove empty lines
        text = re.sub(r'\n\s*\n', '\n', text)
        return text

    def toggle_realtime(self):
        if self.realtime_checkbox.isChecked():
            self.regex_edit.setEnabled(True)  # Activăm editbox-ul
            self.text_edit.textChanged.connect(self.realtime_update)
        else:
            self.regex_edit.setEnabled(False)  # Dezactivăm editbox-ul
            self.text_edit.textChanged.disconnect(self.realtime_update)

    def realtime_update(self):
        if self.realtime_checkbox.isChecked():
            html_text = self.text_edit.toPlainText()
            regex_pattern = self.regex_edit.text()
            if regex_pattern:
                try:
                    html_text = re.sub(regex_pattern, '', html_text)
                except re.error:
                    pass  # Ignore regex errors
            self.text_edit.blockSignals(True)
            self.text_edit.setPlainText(html_text)
            self.text_edit.blockSignals(False)

app = QApplication([])
window = MainWindow()
window.show()
app.exec()

Python 3.13.0rc1 : Use faker with build pandas and PyQt6.

In this tutorial I will show you how I build pandas and use faker and PyQt6.

The faker python module is a powerful library designed to generate fake data, which is particularly useful for testing, filling databases, and creating realistic-looking sample data.

I used python version 3.13.0rc1 and I install with pip tool faker and the pandas and PyQt6 is build with pip tool.

pip install faker
Collecting faker
...
Installing collected packages: six, python-dateutil, faker
Successfully installed faker-28.1.0 python-dateutil-2.9.0.post0 six-1.16.0

The pandas installation fail first time then today works, maybe comes with fixes ...

pip install pandas
...
Successfully built pandas
Installing collected packages: pytz, tzdata, pandas
Successfully installed pandas-2.2.2 pytz-2024.1 tzdata-2024.1

Let's try one example to see how this works, I used copilot from microsoft to generate this first source code:

import sys
from PyQt6.QtWidgets import QApplication, QMainWindow, QTableView
from PyQt6.QtCore import Qt, QAbstractTableModel
import pandas as pd
from faker import Faker

# Generăm date false folosind Faker
fake = Faker()
data = {
    'Name': [fake.name() for _ in range(100)],
    'Address': [fake.address() for _ in range(100)],
    'Email': [fake.email() for _ in range(100)],
    'IP Address': [fake.ipv4() for _ in range(100)]  # Adăugăm adresa IP
}

# Creăm un DataFrame Pandas
df = pd.DataFrame(data)

# Definim un model pentru QTableView
class PandasModel(QAbstractTableModel):
    def __init__(self, df):
        super().__init__()
        self._df = df

    def rowCount(self, parent=None):
        return len(self._df)

    def columnCount(self, parent=None):
        return self._df.shape[1]

    def data(self, index, role=Qt.ItemDataRole.DisplayRole):
        if index.isValid():
            if role == Qt.ItemDataRole.DisplayRole:
                return str(self._df.iloc[index.row(), index.column()])
        return None

    def headerData(self, section, orientation, role=Qt.ItemDataRole.DisplayRole):
        if role == Qt.ItemDataRole.DisplayRole:
            if orientation == Qt.Orientation.Horizontal:
                return self._df.columns[section]
            else:
                return str(section)
        return None

# Aplicatia PyQt6
app = QApplication(sys.argv)
window = QMainWindow()
view = QTableView()

# Setăm modelul pentru QTableView
model = PandasModel(df)
view.setModel(model)

# Configurăm fereastra principală
window.setCentralWidget(view)
window.resize(800, 600)
window.show()

# Rulăm aplicația
sys.exit(app.exec())

Python Qt6 : Two sliders

I used the Python 3.13.0rc1 version and PyQt6 6.7.1 version.

This is the source code:

import sys
from PyQt6.QtWidgets import QApplication, QWidget, QVBoxLayout, QSlider
from PyQt6.QtCore import Qt

class SliderWindow(QWidget):
    def __init__(self):
        super().__init__()

        self.setWindowTitle("Two Slideres")
        self.setGeometry(100, 100, 640, 200)

        layout = QVBoxLayout()

        self.slider_max = QSlider(Qt.Orientation.Horizontal)
        self.slider_max.setMinimum(0)
        self.slider_max.setMaximum(100)
        self.slider_max.setValue(100)
        self.slider_max.valueChanged.connect(self.update_min_slider)

        self.slider_min = QSlider(Qt.Orientation.Horizontal)
        self.slider_min.setMinimum(0)
        self.slider_min.setMaximum(100)
        self.slider_min.setValue(0)
        self.slider_min.valueChanged.connect(self.update_max_slider)

        layout.addWidget(self.slider_max)
        layout.addWidget(self.slider_min)

        self.setLayout(layout)

    def update_min_slider(self, value):
        self.slider_min.blockSignals(True)
        self.slider_min.setValue(100 - value)
        self.slider_min.blockSignals(False)

    def update_max_slider(self, value):
        self.slider_max.blockSignals(True)
        self.slider_max.setValue(100 - value)
        self.slider_max.blockSignals(False)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = SliderWindow()
    window.show()
    sys.exit(app.exec())

Python 3.13.0rc1 : Test MSBuild with PyQt6.

The goal of this tutorial is to test the build process of the Python package.

Installing the PyQt6 python module may come with the build error.

In this case, MS Build is installed from the official website, and then other necessary Python modules can be installed depending on the files needed to build the PyQt6 package.

pip install --upgrade setuptools

pip install msvc-runtime
ERROR: Could not find a version that satisfies the requirement msvc-runtime (from versions: none)
ERROR: No matching distribution found for msvc-runtime

pip install pyqt6
Collecting pyqt6
  Using cached PyQt6-6.7.1-cp38-abi3-win_amd64.whl.metadata (2.1 kB)
...
Successfully built PyQt6-sip
Installing collected packages: PyQt6-Qt6, PyQt6-sip, pyqt6
Successfully installed PyQt6-Qt6-6.7.2 PyQt6-sip-13.8.0 pyqt6-6.7.1

This process uses a lot of files and MSBuild needs some Gb free on the hard disk.

Python Qt6 : Test application with unittest and QtTest.

In this simple example, I add a test class with unittest to sleep the application and QtTest to wait for the window to open after pressing the button.

To run the unittest you need to uncomment this row of source code:

#unittest.main()

Let's see the source code:

import sys

from PyQt6.QtWidgets import QApplication, QDialog, QMainWindow, QPushButton
from PyQt6 import QtCore, QtGui, QtWidgets
from PyQt6 import QtTest 

# Unitest area
import unittest
from time import sleep
def sleep_sec(sec):
    sleep(10*sec)
#
#define class for unittest
class Test(unittest.TestCase):
    def test_square(self):
        sleep_sec(5)

class Ui_Dialog(object):
    def setupUi(self, Dialog):
        Dialog.setObjectName("Dialog")
        Dialog.resize(640, 480)
        self.verticalLayout = QtWidgets.QVBoxLayout(Dialog)

    def retranslateUi(self, Dialog):
        _translate = QtCore.QCoreApplication.translate

class Window(QMainWindow):
    """Main window."""
    def __init__(self, parent=None):
        """Initializer."""
        super().__init__(parent)
        # Use a QPushButton for the central widget
        self.centralWidget = QPushButton("Test_Button")

        # Connect the .clicked() signal with the .onTest_BtnClicked() slot
        self.centralWidget.clicked.connect(self.onTest_BtnClicked)
        self.setCentralWidget(self.centralWidget)

    # Create a slot for launching the Test_ dialog
    def onTest_BtnClicked(self):
        """Launch the Test_ dialog."""
        dlg = Test_Dlg(self)
        # This will test with QtTest just for click 
        QtTest.QTest.qWait(2500)

        dlg.exec()

class Test_Dlg(QDialog):
    """Test dialog."""
    def __init__(self, parent=None):
        super().__init__(parent)
        # Create an instance of the GUI
        self.ui = Ui_Dialog()
        # Run the .setupUi() method to show the GUI
        self.ui.setupUi(self)

if __name__ == "__main__":
    # this test all run of application and show :
    # Ran 1 test in 50.001s
    # uncoment this
    #unittest.main()
    
    # Create the application
    app = QApplication(sys.argv)
    # Create and show the application's main window
    win = Window()
    win.show()
    # Run the application's main loop
    sys.exit(app.exec())

Python 3.12.1 : Simple view for sqlite table with PyQt6.

This is the source code that show you how to use QSqlDatabase, QSqlQuery, QSqlTableModel:

import sys
from PyQt6.QtWidgets import QApplication, QMainWindow, QTableView
from PyQt6.QtSql import QSqlDatabase, QSqlQuery, QSqlTableModel

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        # Initialize the database
        self.init_db()

        # Set up the GUI
        self.table_view = QTableView(self)
        self.setCentralWidget(self.table_view)

        # Set up the model and connect it to the database
        self.model = QSqlTableModel(self)
        self.model.setTable('files')
        self.model.select()
        self.table_view.setModel(self.model)

    def init_db(self):
        # Connect to the database
        db = QSqlDatabase.addDatabase('QSQLITE')
        db.setDatabaseName('file_paths.db')
        if not db.open():
            print('Could not open database')
            sys.exit(1)

    def create_table(self):
        # Create the 'files' table if it doesn't exist
        query = QSqlQuery()
        query.exec('CREATE TABLE IF NOT EXISTS files (id INTEGER PRIMARY KEY, path TEXT)')

if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec())

Python Qt6 : Download for youtube with PyQt6.

Simple example with PyQt6 to create an interface to download a video using a URL from youtube.

This simple example has some limitations, the filtering of the results is done according to the possibilities of the pytube mode and only after video, it does not use multithread and it does not have multiple selection possibilities and options. In conclusion, it offers a simple download functionality.

You can see more on my GitHub account.

import sys
from PyQt6.QtWidgets import QApplication, QMainWindow, QWidget, QVBoxLayout, QHBoxLayout, QLineEdit, QPushButton, QProgressBar, QDialog, QComboBox, QLabel, QMessageBox
from PyQt6.QtGui import QIcon, QPixmap
from pytube import YouTube
from PyQt6.QtCore import Qt
from PyQt6.QtWidgets import QDialogButtonBox


class FormatChecker:
    def __init__(self, url):
        self.url = url

    def check_formats(self):
        try:
            yt = YouTube(self.url)
            formats = []
            streams = yt.streams.filter(only_video=True)
            for stream in streams:
                if stream.url:
                    format_info = {
                        'resolution': stream.resolution,
                        'file_extension': stream.mime_type.split("/")[-1]
                    }
                    formats.append(format_info)
                    print(" format_info ",format_info)
            return formats
        except Exception as e:
            print("Error:", str(e))
            return []


class FormatInfo:
    def __init__(self, resolution, file_formats):
        self.resolution = resolution
        self.file_formats = file_formats


class ResolutionDialog(QDialog):
    def __init__(self, formats, parent=None):
        super().__init__(parent)
        self.setWindowTitle("Select Resolution and File Format")
        self.formats = formats

        layout = QVBoxLayout(self)

        self.resolution_combo = QComboBox(self)
        for format_info in formats:
            resolution = format_info.resolution
            self.resolution_combo.addItem(resolution)
        layout.addWidget(self.resolution_combo)

        self.file_format_combo = QComboBox(self)
        self.update_file_formats(self.resolution_combo.currentText())
        layout.addWidget(self.file_format_combo)

        button_box = QDialogButtonBox(QDialogButtonBox.StandardButton.Ok | QDialogButtonBox.StandardButton.Cancel)
        button_box.accepted.connect(self.accept)
        button_box.rejected.connect(self.reject)
        layout.addWidget(button_box)

        self.resolution_combo.currentIndexChanged.connect(self.on_resolution_changed)

    def update_file_formats(self, resolution):
        self.file_format_combo.clear()
        for format_info in self.formats:
            if format_info.resolution == resolution:
                file_formats = format_info.file_formats
                self.file_format_combo.addItems(file_formats)

    def selected_resolution(self):
        return self.resolution_combo.currentText()

    def selected_file_format(self):
        return self.file_format_combo.currentText()

    def on_resolution_changed(self, index):
        resolution = self.resolution_combo.currentText()
        self.update_file_formats(resolution)


class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("YouTube Downloader - selected - only_video =True")
        self.setFixedWidth(640)

        central_widget = QWidget(self)
        self.setCentralWidget(central_widget)

        layout = QVBoxLayout(central_widget)

        self.url_edit = QLineEdit()
        layout.addWidget(self.url_edit)

        download_button = QPushButton("Download")
        download_button.clicked.connect(self.show_resolution_dialog)
        layout.addWidget(download_button)

        progress_layout = QHBoxLayout()
        layout.addLayout(progress_layout)

        self.progress_bar = QProgressBar()
        self.progress_bar.setTextVisible(True)
        progress_layout.addWidget(self.progress_bar)

        self.progress_icon_label = QLabel(self)
        pixmap = QPixmap("youtube.png")  # Înlocuiți "path_to_icon.png" cu calea către iconul dorit
        self.progress_icon_label.setPixmap(pixmap)
        progress_layout.addWidget(self.progress_icon_label)

    def show_resolution_dialog(self):
        url = self.url_edit.text()
        if url:
            format_checker = FormatChecker(url)
            formats = format_checker.check_formats()
            format_infos = []
            for format in formats:
                resolution = format['resolution']
                file_extension = format['file_extension']
                format_info = next((info for info in format_infos if info.resolution == resolution), None)
                if format_info:
                    format_info.file_formats.append(file_extension)
                else:
                    format_info = FormatInfo(resolution, [file_extension])
                    format_infos.append(format_info)

            dialog = ResolutionDialog(format_infos, self)
            if dialog.exec() == QDialog.DialogCode.Accepted:
                resolution = dialog.selected_resolution()
                file_format = dialog.selected_file_format()
                self.download_video(url, resolution, file_format)
        else:
            print("Please enter a valid YouTube URL.")

    def download_video(self, url, resolution, file_format):
        try:
            yt = YouTube(url)
            stream = yt.streams.filter(only_video=True, resolution=resolution, mime_type="video/" + file_format).first()
            if stream:
                stream.download()
                print("Download completed!")
                QMessageBox.question(self, "Download Completed", "The video has been downloaded successfully.", QMessageBox.StandardButton.Ok)
            else:
                print("Error: The selected video format is not available for download.")
                QMessageBox.question(self, "Download Error", "The selected video format is not available for download.", QMessageBox.StandardButton.Ok)
        except Exception as e:
            print("Error:", str(e))
            QMessageBox.question(self, "Download Error", "An error occurred during the download.", QMessageBox.StandardButton.Ok)


def main():
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec())


if __name__ == "__main__":
    main()