class Weekday(Enum): File "/usr/lib/python3.4/enum.py", line 524, in unique (enumeration, alias_details)) ValueError: duplicate values found in <enum 'Weekday'>: tusday -> monday 1. 2. 3. 4. 5. 6. 4.有人也在想,我就是不改咋地!我能不能通过另一个方法把成员都打印出来?于是:_...
#Check evaluation results for the UserID = 1 test_ratings_df[test_ratings_df['userID'] == 1].sort_values(['rating','predictions'],ascending=False) 从以下结果(“图 6.5”)可以看出,该模型在预测训练期间看不到的电影的收视率方面做得很好: [外链图片转存失败,源站可能有防盗链机制,建议将图片保...
python from enum import Enum class A(Enum): a=1 b=2 c=3 """ 继承Enum基类后一个枚举类中key不能相同 如果希望value也不同可以导入unique """ @unique class A(Enum): a=1 b=2 c=3 闭包 防止局部变量污染全局变量 nonlocal 获取上层作用域的某个变量值 难以追踪 生成器(yield) 生成器是迭代器...
从 DDD 的角度来看,领域类型抽象是非常重要的一环。 回到这一章的重点,主要介绍了Enum类型。这跟前面提到过的Literal类型在用途上很相似,不过Enum提供了更多的高级功能。比如支持多选的Flag类型,支持做数值比较的IntEnum,或者通过unique装饰器来保证 key 的唯一性等。 9 User-Defined Types: Data Classes 前面在讲...
(10):foryinrange(5):ifx*y>10:result.append((x,y))return{x:complicated_transform(x)forxinlong_generator_function(parameter)ifx is not None}squares_generator=(x**2forxinrange(10))unique_names={user.nameforuserinusersifuser is not None}eat(jelly_beanforjelly_beaninjelly_beansifjelly_bean...
I am on the latest Poetry version. I have searched the issues of this repo and believe that this is not a duplicate. If an exception occurs when executing a command, I executed it again in debug mode (-vvv option). enum34 has long caused...
(1.3.0) Requirement already satisfied: marshmallow-enum<2,>=1.4.1 in c:\users\chenw\anaconda3\envs\superset_demo\lib\site-packages (from flask-appbuilder) (1.5.1) Requirement already satisfied: Flask-SQLAlchemy<3,>=2.4 in c:\users\chenw\anaconda3\envs\superset_demo\lib\site-packages (...
enum('M','F') NOT NULL," " `hire_date` date NOT NULL," " PRIMARY KEY (`emp_no`)" ") ENGINE=InnoDB") TABLES['departments'] = ( "CREATE TABLE `departments` (" " `dept_no` char(4) NOT NULL," " `dept_name` varchar(40) NOT NULL," " PRIMARY KEY (`dept_no`), UNIQUE ...
as in the case of a differential analog input channel or a digital port of eight lines. Every physical channel on a device has a unique name (for instance, cDAQ1Mod4/ai0, Dev2/ao5, and Dev6/ctr3) that follows the NI-DAQmx physical channel naming convention. Refer toNI-DAQmx Channel...
WARNING:Because bindings to the entire API are provided, it is possible to leak memory or crash the program with an improperly-written script. Please exercise caution when making scripts and check the memory leak counter in your log file to make sure scripts you write aren’t leaking memory....