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Изворен канал @pythonotes · Post #381 · 23 окт.

Установить свойства виджета в PySide можно не только через соответствующие методы и конструктор класса. Можно их изменять с помощью метода setProperty по имени. btn = QPushButton("Click Me") btn.setProperty("flat", True) Это аналогично вызову btn.setFlat(True) Если указать несуществующее свойство, то оно просто создается btn.setProperty("btnType", "super") Получить его значение можно методом .property(name) btn_type = btn.property("btnType") Когда это может быть полезно? ▫️Можно просто хранить какие то данные в виджете и потом их доставать обратно widget = QWidget() widget.setProperty('my_data', 123) print(widget.property('my_data')) ▫️ Назначая эти свойства разным виджетам можно потом отличить виджеты во время итераци по ним. Например, найти все кнопки со свойством my_data="superbtn". Но ведь вместо кастомного свойства можно использовать objectName, будет тот же результат. Да, но y ObjectName есть ограничение - только строки. ▫️ Если нам потребуется не просто поиск а, например, сортировка по числу, то свойства позволяют нам это сделать. Поддерживается любой тип данных widget.setProperty('my_data', {'Key': 'value'}) widget.setProperty('order', 1) all_widgets.sort(key=w: w.property('order')) Но ведь Python позволяет всё вышеперечисленное сделать простым созданием атрибута у объекта widget.order = 1 widget.my_data = 123 Да, но я думаю что не надо объяснять почему не стоит так делать. К тому же, если у виджета нет свойства то метод .property(name) вернет None, а отсутствующий атрибут выбросит исключение. ▫️ Действительно полезное применение кастомным свойствам - контроль стилей. Здесь атрибутами не обойтись, нужны именно свойства. Дело в том, что в селекторах стилей можно указывать конкретные свойства виджетов на которые следует назначать стиль. Просто запустите этот код from PySide2.QtWidgets import * if __name__ == "__main__": app = QApplication([]) widget = QWidget(minimumWidth=300) layout = QVBoxLayout(widget) btn1 = QPushButton("Action 1") btn2 = QPushButton("Action 2") btn3 = QPushButton("Action 3", flat=True) layout.addWidget(btn1) layout.addWidget(btn2) layout.addWidget(btn3) # добавим кастомное свойство одной кнопке btn1.setProperty("btnType", "super") # добавляем стили widget.setStyleSheet( """ QPushButton[btnType="super"] { background-color: yellow; color: red; } QPushButton[flat="true"] { color: yellow; } """ ) widget.show() app.exec_() С помощью селектора мы избирательно назначили стили на конкретные кнопки. Как получить список всех кастомный свойств? Функция получения списка кастомных свойств отличается от получения дефолтных. def print_widget_dyn_properties(widget): for prop_name in widget.dynamicPropertyNames(): property_name = prop_name.data().decode() property_value = widget.property(property_name) print(f"{property_name}: {property_value}") #tricks#qt

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AI & Law

@ai_and_law · Post #328 · 11.06.2024 г., 08:22

Dear Colleagues, I am thrilled to announce that I have successfully passed the AI Governance Professional certification exam from the International Association of Privacy Professionals (AIGP/IAPP). This comprehensive exam covered a wide range of topics, from the technological foundations of AI systems and their lifecycles to the ethical, risk management, and legal considerations surrounding the development and deployment of AI systems. I am committed to continuing my learning in this area and sharing news and valuable resources with you. #IAPP#AIGP

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AI & Law

@ai_and_law · Post #437 · 07.11.2024 г., 08:04

AIGP 2025 Update: Streamlining AI Governance Certification for Real-World Impact The IAPP has unveiled the latest version of its AIGP Body of Knowledge (BoK), effective for exams through February 2, 2025, offering a clearer, more flexible, and practical approach to AI governance certification. Simplified to four domains, the update places new emphasis on foundational principles, ensuring that certification aligns with the most relevant and influential legal frameworks worldwide. This streamlined version is highly practical, designed to address the current responsibilities AI governance professionals encounter, not merely theoretical questions. Furthermore, Domains III and IV now separate the roles of developers and deployers, a crucial distinction reflecting how laws and standards are evolving in the field. By balancing legal and technical insights, the new AIGP BoK solidifies its standing as the essential credential for those committed to responsible AI governance. #AIGP#AIGovernance#LegalTech#ResponsibleAI#IAPP

AI & Law

@ai_and_law · Post #337 · 24.06.2024 г., 07:04

IAPP Releases Comprehensive Report on AI Governance in Practice The International Association of Privacy Professionals (IAPP) has released a new report on AI Governance in Practice, providing key insights into the evolving field of AI governance. The report offers a foundational overview of AI, detailing its development and essential terminology. This approach allows anyone to grasp the basics and advance in the field. It includes a thorough inventory of AI risks, particularly data-centric ones, and offers practical strategies for managing them. Additionally, the report cites leading resources, including laws, regulations, and frameworks like the NIST AI RMF, providing a strong basis for deeper exploration. Moreover, the report highlights various industry examples to contextualize theoretical concepts. For those preparing for the AI governance exam, the report aligns well with the AIGP Body of Knowledge and covers numerous topics likely to be tested. #AI#AIGovernance#DataPrivacy#IAPP#AIGP

AI & Law

@ai_and_law · Post #327 · 11.06.2024 г., 07:04

ISO Releases Free AI Governance Standard The International Organization for Standardization (ISO), a prominent NGO known for creating industry standards, has made the important ISO/IEC 22989 standard publicly available for free. This standard addresses a wide range of AI governance topics, providing valuable guidelines for the responsible development and deployment of AI technologies. ISO/IEC 22989 covers essential aspects of AI governance, including ethical considerations, risk management, and compliance requirements. It provides standardized concepts and terminology to help stakeholders understand and adopt AI technology effectively. This document is designed for a wide audience, including both experts and non-practitioners, offering insights into AI’s interdisciplinary nature, which encompasses computer science, data science, natural sciences, humanities, mathematics, and social sciences. By making this standard freely accessible, ISO aims to promote the widespread adoption of responsible AI practices, ensuring that AI systems are trustworthy, robust, resilient, reliable, accurate, safe, secure, and private. You can find ISO/IEC 22989 and other publicly avalable standards here. #ISO#AIGovernance#AIGP#AI#Ethics#AICompliance#Technology#Innovation