需要先创建包含Manifest信息的对象，然后保存。Manifest信息请见表2。路径支持本地和OBS，如果是OBS，需要Session信息。

manifest_info.save(path, session=None, save_mode="w")

示例代码

在保存Manifest文件之前需要先创建包含Manifest信息的对象，包括Sample样本信息及其标签信息Annotation，然后将若干个样本组成Manifest。保存的时候调用save接口，将session信息传入，即可保存到指定路径。

from modelarts.dataset.format.manifest.annotation import Annotation
from modelarts.dataset.format.manifest import Manifest
from modelarts.dataset.format.manifest.sample import Sample
from modelarts.session import Session

size = 0
sample_list = []
for i in range(19):
    size = size + 1
    source = "s3://obs-path/examples/image-classification/data/image_" + str(i) + ".jpg"
    usage = "TRAIN"
    inference_loc = "s3://obs-path/examples/image-classification/data/image_" + str(i) + ".txt"
    annotations_list = []

    for j in range(1):
        annotation_type = "modelarts/image_classification"
        if 0 == i % 2:
            annotation_name = "Bees"
        else:
            annotation_name = "Rabbits"
        annotation_creation_time = "2019-02-20 08:23:06"
        annotation_format = "manifest"
        annotation_property = {"color": "black"}
        annotation_confidence = 0.8
        annotated_by = "human"
        annotations_list.append(
            Annotation(name=annotation_name, type=annotation_type,
                       confidence=annotation_confidence,
                       creation_time=annotation_creation_time,
                       annotated_by=annotated_by, annotation_format=annotation_format,
                       annotation_property=annotation_property))
    sample_list.append(
        Sample(source=source, usage=usage, annotations=annotations_list, inference_loc=inference_loc))
manifest_info = Manifest(samples=sample_list, size=size)

path = "obs://your-obs-bucket/manifest/V001.manifest"
session = Session()
manifest_info.save(path, session=session, save_mode="a")

参数说明

父主题： Manifest管理

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