mindspore_gl.dataloader.dataset 源代码

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"""
Mappable dataset.
"""
from typing import (
    Generic,
    TypeVar,
)

Tco = TypeVar('Tco', covariant=True)


[文档]class Dataset(Generic[Tco]): r""" Mappable Dataset Definition, an abstract class represent Dataset. All datasets should subclass it which represent a map relation from key to sample. All subclass should overwrite `__getitem__`, which implement fetch a sample given a key. Supported Platforms: ``Ascend`` ``GPU`` Examples: >>> from mindspore_gl.dataloader import Dataset >>> class MyDataset(Dataset): >>> def __init__(self, *args, **kwargs): >>> ... >>> my_dataset = MyDataset() """ def __getitem__(self, index): raise NotImplementedError