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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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TON Crypto News

@toncoin_rap · Post #89 · 30.08.2024 г., 06:51

🎧⤴ Crypto Chaos: Durov's Arrest Rocks Toncoin as Pantera Capital’s Record Investment Faces Turbulence - Pantera Capital invested over $100 million in Toncoin, marking its largest investment to date, drawn by the potential of Telegram evolving into a "super app" similar to China's WeChat. - Pavel Durov, Telegram's founder, was detained in Paris, leading to a sharp decline in Toncoin's value, wiping out approximately $4 billion from its market cap. - Venture capitalists, including Animoca Brands and Mirana Ventures, are now grappling with the uncertainty surrounding Telegram’s future and the potential impact on Toncoin. Verse 1: Pantera dropped a hundred mil, thought they hit the spot, Durov in the cuffs, now the market's getting hot. Toncoin tanking, billions lost in the air, Telegram’s the beast, but now it’s running scared. Chorus: They wanna shut us down, they wanna break the chain, Freedom in the code, but they tryna bring the pain. Ton's got the power, but the system’s on the brink, Keep your head up, ‘cause the ship ain’t gonna sink. Verse 2: VCs in the dark, tryna find some light, Locked in for a year, now they fear the fight. Durov played the game, now he's stuck in the mess, Crypto’s the future, but the present’s in distress. Chorus: They wanna shut us down, they wanna break the chain, Freedom in the code, but they tryna bring the pain. Ton's got the power, but the system’s on the brink, Keep your head up, ‘cause the ship ain’t gonna sink. Bridge: From the streets to the charts, we rise or we fall, Blockchain warriors, standing ten feet tall. The swan’s in the sky, black as the night, But we ain't backing down, we keep up the fight. Verse 3: Money moves in silence, Pantera bet big, Now Durov’s locked up, tryna fight the rig. Investors on edge, but the future’s still bright, Toncoin to the moon, we gon’ set it right. Chorus: They wanna shut us down, they wanna break the chain, Freedom in the code, but they tryna bring the pain. Ton's got the power, but the system’s on the brink, Keep your head up, ‘cause the ship ain’t gonna sink. #Toncoin #PanteraCapital #Crypto 🎧@toncoin_rap

Venture Village Wall 🦄

@venturevillagewall · Post #3965 · 23.01.2025 г., 22:00

Crypto News Highlights: Funding and Regulations Bitcoin hits $105,000 amidst notable developments in the crypto sector. - Senator Cynthia Lummis announces a Strategic Bitcoin Reserve to hold BTC for 20+ years with no new taxes applied. - Vitalik Buterin warns of potential bribery linked to political tokens. Full insights here. - Rep. Bryan Steil appointed chair of the House subcommittee on crypto, focusing on fraud prevention and legislation. Read more on Axios here. - Swarm Network raises $3M led by Y2Z Ventures. - Radius secures $7M for rollup sequencer development, backed by Pantera Capital. - Drift Zone receives funding from 369 Capital, amount undisclosed. - Trump declares USA the "world capital of AI and crypto" at WEF. #Bitcoin#Crypto#VC#Ethereum#PoliticalTokens#MEV#Web3#Funding#Fintech#Blockchain#Bribery#Legislation#Fraud#Stablecoin#CynthiaLummis#VitalikButerin#Trump#Y2Z#PanteraCapital

Venture Village Wall 🦄

@venturevillagewall · Post #3974 · 24.01.2025 г., 19:00

Big Moves in Crypto Regulation News 🚀 US Senator Cynthia Lummis, a vocal Bitcoin advocate, elected Chair of the Senate Digital Assets Committee. Proposed strategic Bitcoin reserve hints at potential significant moves for Bitcoin. Meanwhile, Trump's recent crypto executive order suggests a reserve of 'seized digital assets,' increasing speculation around Bitcoin's future. 🔗 For further details, read the article here. 🔗 In additional news, the SEC has opened the door for Wall Street banks to hold crypto. 🔗 Standard Chartered forecasts Bitcoin could reach $200,000 by the end of 2025. 🔗 Japan's Central Bank raised interest rates to a 17-year high, now at 0.5%, causing ripples across markets, including crypto. #Crypto#Bitcoin#US#Regulations#SEC#InterestRates#Japan#Senate#DigitalAssets#Investment#FinancialMarkets#WallStreet#Speculation#CynthiaLummis#CryptoBanks#PanteraCapital#StandardChartered#Ethereum#AI#VC

Venture Village Wall 🦄

@venturevillagewall · Post #3984 · 25.01.2025 г., 19:00

Crypto Trader Gains $1.2 Million Profit Famous trader *Cosmonaut* achieves $1.2 million profit by following whale wallets. Bought Trump token for $5-8 before surge, similar success with SHIBA, PEPE, and FLOKI, each rising over 1000% in six months. Weekly trade signals shared in his Telegram channel predict coins with x5-x10 potential for 2025. Join him here. Pantera Capital's Dan Morehead shares confidence in Bitcoin's resilience, citing ownership by 50 million Americans and institutions like BlackRock and Fidelity back it. #Crypto#Bitcoin#Trading#Profit#Investment#Whales#Tokens#Cosmonaut#SHIBA#PEPE#FLOKI#PanteraCapital#DanMorehead#Solana#Fidelity#BlackRock #2025 #MarketTrends#CryptoGrowth#Telegram