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()

Python Qt6 : use sqlite - part 002.

In this article tutorial I will show you how to read from the sqlite file the content of the table: files.

In the last article tutorial, I create a interface with PyQt6 that search files by regular expresion and result is add to sqlite file named: file_paths.db.

I used same steps with a default python class and I used QSqlTableModel to show the content received.

The script will create a window with this QSqlTableModel, then reads the file and add the result.

Let's see the source code:

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())

I add this source code into a python script named view.py and I run it.

This is the result of the running script:

Python Qt6 : use sqlite - part 001.

This will default update for any python project:

python.exe -m pip install --upgrade pip --user
...
Successfully installed pip-23.1

The sqlite3 is already on my python instalation because I use version 3.11.0, you can see the official webpage.

Install the PyQt6 with the pip tool, I have this python package:

pip install PyQt6 --user
Requirement already satisfied: PyQt6 in c:\python311\lib\site-packages (6.4.1)
...

The next source of code will create a windows with two buttons and one edit area.

The PyQt6 graphics user interface use these elements: QPushButton, QLineEdit and QMessageBox from QWidget.

The python class will create a window with these elements and dor each of these is need to have methods.

First you need to select the folder, then use an regular expresion for search.

I used this : .*\.blend1$ this means *.blend1.

The last step is to use FindFiles button to search all blend files, in this case and add path of each of these to the sqlite database into a table named: files .

If you select the root C: then will take some time to search the files.

Let's see the source code:

import sys
import os
import re
from PyQt6.QtWidgets import *
from PyQt6.QtCore import *
import sqlite3

class FindFiles(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Find Files")
        self.setGeometry(100, 100, 500, 300)

        self.folder_button = QPushButton("Choose Folder")
        self.folder_button.clicked.connect(self.choose_folder)
        self.pattern_edit = QLineEdit()
        self.pattern_edit.setPlaceholderText("Enter regular expression pattern")
        self.pattern_edit.setFixedWidth(250)
        self.find_button = QPushButton("Find Files")
        self.find_button.clicked.connect(self.find_files)

        layout = QVBoxLayout()
        layout.addWidget(self.folder_button)
        layout.addWidget(self.pattern_edit)
        layout.addWidget(self.find_button)
        self.setLayout(layout)

        self.folder_path = ""

        self.conn = sqlite3.connect("file_paths.db")
        self.cursor = self.conn.cursor()
        self.cursor.execute("CREATE TABLE IF NOT EXISTS files (id INTEGER PRIMARY KEY, path TEXT)")

    def choose_folder(self):
        self.folder_path = QFileDialog.getExistingDirectory(self, "Choose Folder")
        if self.folder_path:
            self.folder_button.setText(self.folder_path)

    def find_files(self):
        if not self.folder_path:
            QMessageBox.warning(self, "Warning", "Please choose a folder first!")
            return

        pattern = self.pattern_edit.text()

        if not pattern:
            QMessageBox.warning(self, "Warning", "Please enter a regular expression pattern!")
            return

        file_paths = []
        for root, dirs, files in os.walk(self.folder_path):
            for file in files:
                if re.match(pattern, file):
                    file_path = os.path.join(root, file)
                    file_paths.append(file_path)
                    self.cursor.execute("INSERT INTO files (path) VALUES (?)", (file_path,))
        self.conn.commit()

        QMessageBox.information(self, "Information", f"Found {len(file_paths)} files that match the pattern!")

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

I put this source code into a file named:main.py and I run it.

python main.py

The result is this:

Python : Fix error with pip and pylupdate6.exe .

I try to upgrade the PyQt6 package and I got this error:

pip3 install --upgrade --force-reinstall PyQt6
...
ERROR: Could not install packages due to an OSError: [WinError 2] The system cannot find the file specified:
...pylupdate6.exe
...pylupdate6.exe.deleteme'

I think this solution will work for any python package

Open a command shell run as administrator and run it again:

pip3 install --upgrade --force-reinstall PyQt6
Collecting PyQt6
...
Successfully installed PyQt6-6.4.1 PyQt6-Qt6-6.4.2 PyQt6-sip-13.4.1

If you want to re-download the packages instead of using the files from your pip cache, then use:

pip install --force-reinstall --no-cache-dir

Python : Fix DLL load failed while importing ...

This error DLL load failed while importing ... can have many causes like conflicts with the already installed packages, and also it can break your current environment.

>>> import PyQt6
>>> from PyQt6.QtCore import QUrl
Traceback (most recent call last):
  ...
ImportError: DLL load failed while importing QtCore: The specified module could not be found.

You can see I used to reinstall the PyQt6 python package with this argument --ignore-installed:

pip3 install PyQt6 --user --ignore-installed
Collecting PyQt6
  ...
Installing collected packages: PyQt6-Qt6, PyQt6-sip, PyQt6
  WARNING: The scripts pylupdate6.exe and pyuic6.exe are installed in
  ...
  which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
Successfully installed PyQt6-6.4.0 PyQt6-Qt6-6.4.2 PyQt6-sip-13.4.0

The --ignore-installed option for the pip package manager was first introduced in version 6.0, which was released in April 2014.

The old install give me this error and when I try to use I got this:

>>> from PyQt6 import *
>>> dir(PyQt6)
['__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__path__', '__spec__']

Now after I reinstall with this option the result is good:

>>> import PyQt6
>>> from PyQt6 import QtCore
>>> dir(PyQt6)
['QtCore', '__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__path__', '__spec__', 'sip']
>>> from PyQt6.QtCore import QUrl

Python Qt6 : Create a tray icon application.

The notification area known as system tray is located in the Windows Taskbar area, usually at the bottom right corner.

I tested with:

Python 3.10.2 (tags/v3.10.2:a58ebcc, Jan 17 2022, 14:12:15) [MSC v.1929 64 bit (AMD64)] on win32
...
pip show pyqt6
Name: PyQt6
Version: 6.4.0
Summary: Python bindings for the Qt cross platform application toolkit

I created a trayicon application with PyQt6 that show a menu with two entry: Show Window and Exit.

The Show Window will sow a default window and the Exit will close the application.

This is the source code I tested, you need an icon.png in the same folder with this script.

import sys
from PyQt6.QtCore import Qt, QEvent, QPoint
from PyQt6.QtGui import QGuiApplication, QIcon, QAction
from PyQt6.QtWidgets import QApplication, QSystemTrayIcon, QMainWindow, QMenu

# create the default application
app = QApplication(sys.argv)

# create the main window
window = QMainWindow()
# set the title for the window
window.setWindowTitle("My Window")

# this set the tray icon and menu
tray_icon = QSystemTrayIcon()
tray_icon.setIcon(QIcon("icon.png"))
menu = QMenu()

# add an action to the menu to show the window
show_window_action = QAction("Show Window", None)
show_window_action.triggered.connect(window.show)
menu.addAction(show_window_action)

# add an action to the menu to exit the application
exit_action = QAction("Exit", None)
exit_action.triggered.connect(app.quit)
menu.addAction(exit_action)

# set the context menu
tray_icon.setContextMenu(menu)

# show the tray icon
tray_icon.show()

# run the application
app.exec()

Python 3.10.2 : about ChemSpiPy.

ChemSpiPy provides a way to interact with ChemSpider in Python. It allows chemical searches, chemical file downloads, depiction and retrieval of chemical properties...

You can read more about this python package on the official website and the documentation for this python package.

You have to create an account and fill in the data to get an A.P.I key...

This is the source code for this python package , I use PyQt6 to show image formula with:QPixmap.fromImage.

import chemspipy

# set the API key from https://developer.rsc.org/my-apps/
api_key = "... your A.P.I. key ..."

# import the ChemSpider class
from chemspipy import ChemSpider

# instance of the ChemSpider class
cs_inst = ChemSpider(api_key)

compound_name = "Glucose"
# search for compound: "Glucose"
compounds  = cs_inst.search(compound_name) 

# get the first compound in the list
compound = compounds[0]

# print the list of the attributes and methods of 'compound' object
print(dir(compound))

# Print the compound's properties
print("... some compound's properties !")
print(f"Name: {compound.common_name}")
print(f"Average_mass: {compound.average_mass}")
print(f"ChemSpider ID - csid: {compound.csid}")
#print(f" external_references: {compound.external_references}")
#print(f" image: {compound.image}")
#print(f" mol_2d: {compound.mol_2d}")
#print(f" mol_3d: {compound.mol_3d}")
print(f" molecular_formula: {compound.molecular_formula}")
print(f" molecular_weight: {compound.molecular_weight}")
print(f" monoisotopic_mass: {compound.monoisotopic_mass}")
print(f" nominal_mass: {compound.nominal_mass}")


import sys
from PyQt6.QtCore import Qt
from PyQt6.QtGui import QPixmap, QImage, QColor
from PyQt6.QtWidgets import QApplication, QMainWindow, QLabel

# Create the application
app = QApplication(sys.argv)

# Create the main window
window = QMainWindow()
window.setWindowTitle(compound_name)

# Load the image with fromData
image = QImage.fromData(compound.image)

# Create a label to display the image
label = QLabel()
label.setPixmap(QPixmap.fromImage(image))

# Set the label as the central widget of the window
window.setCentralWidget(label)

# Show the window
window.show()

# Run the application
app.exec()

This is the result of running the source code:

Python Qt6 : Show any CSV file with QTableWidget.

In this tutorial, I will show you how easy it is to work with PyQt6 and QTableWidget to display any CSV file.

The source code lines are already commented to understand how this source code works.

This is the content of the csv file named my.csv:

id,firstname,lastname,email,email2,profession
100,Maud,Callista,Maud.Callista@yopmail.com,Maud.Callista@gmail.com,police officer
101,Justinn,Rona,Justinn.Rona@yopmail.com,Justinn.Rona@gmail.com,worker
102,Gabriellia,Robertson,Gabriellia.Robertson@yopmail.com,Gabriellia.Robertson@gmail.com,police officer
103,Gwenneth,Payson,Gwenneth.Payson@yopmail.com,Gwenneth.Payson@gmail.com,firefighter
104,Lynea,Robertson,Lynea.Robertson@yopmail.com,Lynea.Robertson@gmail.com,developer

This is the source I used:

import sys
import csv
from PyQt6.QtWidgets import QApplication, QMainWindow, QTableWidget, QTableWidgetItem
from PyQt6.QtCore import Qt

# the main window class
class MainWindow(QMainWindow):
    # the init definition of the class
    def __init__(self):
        super().__init__()

        # the window title
        self.setWindowTitle('Table Viewer for any CSV file.')

        # this create the table widget
        self.table = QTableWidget(self)

        # the table dimensions is set default
        self.table.setColumnCount(0)
        self.table.setRowCount(0)

        # this read the CSV file named my.csv
        with open('my.csv', 'r') as file:
            # use the reader for file 
            reader = csv.reader(file)
            # this get the column labels from the first row
            headers = next(reader)
            # this set the number of columns based on the number of headers
            self.table.setColumnCount(len(headers))
            # this set the horizontal header labels
            self.table.setHorizontalHeaderLabels(headers)
            # for each row iterate the rows in the CSV file
            for row in reader:
                # add a row to the table
                row_index = self.table.rowCount()
                self.table.insertRow(row_index)
                # add data to cells 
                for col_index, cell in enumerate(row):
                    self.table.setItem(row_index, col_index, QTableWidgetItem(cell))
        
        # setting for the table as the central widget
        self.setCentralWidget(self.table)

# this run the application
if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec())

Here is what the result of running the source code:

Python Qt6 : The basic differences between PyQt5 and PyQt6.

Python Qt6 known as PyQt6 is a binding of the cross-platform GUI toolkit Qt, implemented as a Python plug-in with Qt 6 the latest version of Qt.

The PyQt6 first stable release was on 6 January 2021, developed by Riverbank Computing Ltd and the last release was on 2 December 2021 with the version PyQt v6.2.2.

This release is license GPL or commercial on Python 3 platform.

Let's see some differences between PyQt5 and PyQt6.

The .exec() method is used in Qt to start the event loop of your QApplication or dialog boxes. In Python 2.7 exec was a keyword and Python 3 removed the exec keyword.

The first difference as a result of PyQt6 .exec() calls are named just as in Qt.

If you read the documentation from the official webpage, then in your PyQt6 source code you need to use these changes:

QEvent.Type.MouseButtonPress
...
Qt.MouseButtons.RightButton
...

Both PyQt5 and PyQt6, although seemingly easy to use for complex applications, will require extra effort.