TGINSIGHT SIMILAR POSTS
Изворен канал @pythonotes · Post #156 · 2 окт.
Те, кто в Python не первый день, хорошо знают, что на число можно умножить не только число, но и другие типы. Главное, чтобы у этих типов была реализация такой операции. # list >>> [1] * 3 [1, 1, 1] # tuple >>> (2, 3) * 3 (2, 3, 2, 3, 2, 3) # string >>> "A" * 3 "AAA" Так работает полиморфизм стандартных типов. Интересно здесь то, что это сработает и в том случае, когда порядок операндов обратный. То есть int умножить на [тип]. # list >>> 3 * [1] [1, 1, 1] # tuple >>> 3 * (2, 3) (2, 3, 2, 3, 2, 3) # string >>> 3 * "A" "AAA" Если хотите реализовать такое поведение в ваших классах то следует помнить два момента: 1. Если множитель справа, то вам нужно реализовать метод __mul__, наш класс это первый операнд, то есть слева. myType * 3 2. Если множитель слева, то вам нужно реализовать метод __rmul__, наш класс это второй операнд, справа. 3* myType Всё тоже самое можно делать и для других математических операторов. И если в этом примере действие и результат будут фактически одинаковыми, то бывают ситуации, когда это не так. Например, при умножении матриц имеет значение порядок операндов. Для других операторов, таких как деление или сдвиг, очень важно кто с какой стороны находится. >>> 2/4, 4/2 (0.5, 2.0) >>> 2<<3, 3<<2 (16, 12) >>> 100%15, 15%100 (10, 15) #tricks#basic
Пребарај: #stabbing
@mib_messageinabottle · Post #7021 · 03.06.2024 г., 07:40
#Mannheim#stabbing • Male cop tackles this guy for some reason • Cop Attempts to restrain him • Male cops gets stabbed by the actual #stabber • Blue coat guy still gets arrested by useless female cop W.T.F 🤷♂ These have to be the stupidest police officers ever!
@mib_messageinabottle · Post #7014 · 31.05.2024 г., 18:09
The thin blue line? #Mannheim #Stabbing #PaxEuropa
Hashtags
@reutersworldchannel · Post #149423 · 15.10.2021 г., 17:51
LIVE: UK police give an update after stabbing of lawmaker David Amess British police give a briefing after British lawmaker David Amess was stabbed to death by a man who attacked him at a meeting with constituents. #Reuters#UKMP#stabbing # #Live#UKpolitics ➖@reutersworldchannel➖
@reutersworldchannel · Post #149413 · 15.10.2021 г., 14:54
LIVE: View outside the church where UK lawmaker David Amess was stabbed to death Live view outside the Belfairs Methodist Church where British Conservative lawmaker David Amess was stabbed to death by a man who walked into a meeting with voters. #Reuters#UKMP#stabbing # #Live#UKpolitics Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: http://reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en ➖@reutersworldchannel➖
@mib_messageinabottle · Post #7010 · 31.05.2024 г., 17:57
Several people injured in a mass-#stabbing at a rally in #Germany organised by #PaxEuropa, which is an organisation opposed to the "Islamisation of Europe". Activist and blogger Michael #Stürzenberger was among the injured. A German cop also got stabbed in the neck after he attacked one of the rally members, (one of those who was trying to subdue mad stabber), and then the stupid cop knelt on his chest like he was the problem - a microcosm of #EU decision-making. Looked like the cop just saw white German guy grappling with a muslim guy and immediately presumed that the white guy was the problem. Sometimes you deserve what you get 🤷♂ The last video looks the astoundingly stupid German police officers placing the white German guy under arrest 🤷♂
@mib_messageinabottle · Post #7073 · 08.08.2024 г., 23:57
Compare and contrast #UK#PrimeMinister#Starmer's reaction to: • "firey but mostly peaceful" #BLM riots in the US after the death of petty criminal drug-addict George Floyd Vs •#White Working class "Anti-#Stabbing" riots in the #UK after the #murder of 3 #children