Ранее я уже упоминал о другой фишке из ˍˍfutureˍˍ , это оператор деления.
from __future__ import division
Суть проста. Раньше сложность типа данных результата поределялась типом самого сложного операнда.
Например:
int/int => int
int/float => float
В первом случае оба операнда int, значит и результат будет int. Во втором float более сложный тип, поэтому результат будет float.
Если нам требуется получить дробное значение при делении двух int то приходилось форсированно один из операндов конверировать в float.
12/float(5) => float
Но с новой "философией" это не требуется. В Python3 "floor division" заменили на "true division" а старый способ теперь работает через оператор "//".
>>> 3/2
1.5
>>> 3//2
1
То есть теперь деление int на int даёт float если результат не целое число.
В классах теперь доступны методы __floordiv__() и __truediv__() для определения поведения с этими операторами.
Данный переход описан в PEP238.
#pep#2to3#basic
🚨 Just had an intriguing discovery at the Blokhin Institute in Moscow, Russia.
While waiting for my doctor's appointment, I decided to explore the institute's museum. Among the exhibits, I stumbled upon a personal letter and invitation from Edward Kennedy to one of the institute's doctors. This was during the Cold War era, which makes this find even more fascinating.
It seems that even amidst political tensions, there was recognition of the significant contributions Russia has made to arts and sciences. This glimpse into history reminds us of the importance of collaboration in fields like medicine, where advancements benefit everyone, regardless of borders.
#BlokhinInstitute#ColdWarHistory#MedicalResearch#InternationalCollaboration#RussianAchievements
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More info: PeproMene Bio
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