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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The Minister of Defence of the Federal Government of Somalia, Ahmed Moallim Fiqi, accompanied by the Chief of the Somali National Army, General Odowaa Yusuf Rageh, today held a meeting with the Chair of the European Union Military Committee, General Seán Clancy, who is visiting Somalia.
The meeting focused on commending and strengthening military cooperation between Somalia and the European Union, particularly in the areas of troop training, the continuation of various forms of support, and the enhancement of national defence capabilities and #AUSSOM.
The meeting was attended by the European Union Ambassador to Somalia, Ms Francesca Di Mauro, along with other senior officials from both sides.
https://sonna.so/en/somalia-eu-strengthen-military-cooperation-in-meeting-between-defence-officials/
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In a brief statement posted on X on Sunday, Uganda’s Commander-in-Chief of the Armed Forces, Gen. Muhoozi Kainerugaba, said the country’s military mission in Somalia had effectively ended and that preparations were underway for a full troop withdrawal.
“After 19 years in Somalia, we intend to completely withdraw from that country very soon,” Muhoozi said, without providing further details or a timetable.
Ugandan troops make up the largest contingent within the African Union Support and Stabilization Mission in Somalia, known as #AUSSOM, and have played a central role...
https://www.hiiraan.com/news4/2026/Jan/204267/uganda_announces_plans_to_withdraw_troops_from_somalia_after_19_years.aspx
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In a statement posted on 21 March, Dr. Ali Said Fiqi, Speaker of the Southwest State Parliament, alleged that firearms provided by Egypt for national security purposes had been rerouted to armed groups operating in Burhakaba district.
Egypt has in recent years increased its military cooperation with Somalia, including supplying weapons and preparing troop contributions to #AUSSOM, a new African Union-led mission replacing the previous peacekeeping framework.
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The formation ceremony was attended by Egypt’s Minister of Defense and Military Production Gen. Abdel Mageed Saqr, Chief of Staff Lt. Gen. Ahmed Khalifa, and senior Egyptian military commanders. The military spokesman said the visit included briefings on the preparation, equipping, and operational readiness of Egyptian troops designated for the mission.
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