Python 3.9 增加新的类型 Annotated。比如,类型T用一个元数据x进行注解,Annotated[T, x]。 例子: fromtypingimportAnnotatedimporttypesdefmyadd(a:Annotated[int,"first"],b:Annotated[int,'second']=5)->int:returna+bprint(myadd(10))print(myadd.__annotations__) 结果: 15 {'a': typing.Annota...
python anno python annotated 类型 Type hints最大的好处就是易于代码维护。当新成员加入,想要贡献代码时,能减少很多时间。Python3的这些新特性很方便 也方便我们在调用汉书时提供了错误的类型传递导致运行时错误的检测。 第一个类型注解示例 我们使用一个简单例子,两个整数相加。 def add(a, b): return a + b...
类的包定义annotatedelement接口是所有程序元素所实现的接口的父接口,所以程序通过反射获取了某个类的annotatedelement对象之后,程序就可以调用该对象的如下几个方法来访问注解信息:getannotation(classannotationclass): 返回改程序元素上存在的、指定类型的注解,如果该类型注解不存在,则返回null... method)@retention(retenti...
(62 kB) Using cached annotated_types-0.6.0-py3-none-any.whl (12 kB) Using cached charset_normalizer-3.3.2-cp312-cp312-win_amd64.whl (100 kB) Using cached pycryptodome-3.19.0-cp35-abi3-win_amd64.whl (1.7 MB) Using cached urllib3-2.1.0-py3-none-any.whl (104 kB) Using cached...
importutypefromutype.typesimportAnnotated@utype.parsedeflogin(username:Annotated[str,utype.Param(...
fromtypingimportAnnotatedDepType=Annotated[int,Depends(my_func)]defmy_function(dependency:DepType):pass Also we support overrides for annotated types. For example: fromtypingimportAnnotatedDepType=Annotated[int,Depends(my_func)]defmy_function(dependency:DepType,no_cache_dep:Annotated[DepType,Depends(my...
Package Version --- --- aiohttp 3.8.5 aiosignal 1.3.1 alembic 1.11.2 annotated-types 0.6.0 appdirs 1.4.4 asttokens 2.2.1 async-timeout 4.0.2 attrs 23.1.0 Automat 22.10.0 backcall 0.2.0 beautifulsoup4 4.12.2 black 23.7.0 blis 0.7.11 Bottleneck 1.3.7 bs4 0.0.1 catalogue 2.0....
(1.9MB)|████████████████████████████████|1.9MB3.3MB/s Collecting annotated-types>=0.4.0Downloading annotated_types-0.5.0-py3-none-any.whl(11kB)Requirement already satisfied:importlib-metadata;python_version=="3.7"ind:\001_develop\022_python\python37_64\...
这是Google样式文档字符串的摘录: def function_with_types_in_docstring(param1, param2): """Example function with types documented in the docstring. `PEP 484`_ type annotations are supported. If attribute, parameter, and return types are annotated according to `PEP 484`_, they do not nee...
return types are annotated according to `PEP 484`_, they do not need to be included in the docstring: Args: param1 (int): The first parameter. param2 (str): The second parameter. Returns: bool: The return value. True for success, False otherwise. ...