| from typing import Iterable, TypeVar, Callable | |
| _IterType = TypeVar('_IterType') | |
| _IterTargetType = TypeVar('_IterTargetType') | |
| def iter_mapping(iter_: Iterable[_IterType], mapping: Callable[[_IterType], _IterTargetType]): | |
| """ | |
| Overview: | |
| Map a list of iterable elements to input iteration callable | |
| Arguments: | |
| - iter_(:obj:`_IterType list`): The list for iteration | |
| - mapping (:obj:`Callable [[_IterType], _IterTargetType]`): A callable that maps iterable elements function. | |
| Return: | |
| - (:obj:`iter_mapping object`): Iteration results | |
| Example: | |
| >>> iterable_list = [1, 2, 3, 4, 5] | |
| >>> _iter = iter_mapping(iterable_list, lambda x: x ** 2) | |
| >>> print(list(_iter)) | |
| [1, 4, 9, 16, 25] | |
| """ | |
| for item in iter_: | |
| yield mapping(item) | |