Python分块上传。在目标位置创建更大的文件

import os
from qcloud_cos import CosConfig
from qcloud_cos import CosS3Client

# 配置腾讯云COS
secret_id = 'your_secret_id'
secret_key = 'your_secret_key'
region = 'your_region'
bucket = 'your_bucket'
token = None
config = CosConfig(Region=region, SecretId=secret_id, SecretKey=secret_key, Token=token)
client = CosS3Client(config)

# 分块上传文件
def upload_large_file(file_path, key):
    chunk_size = 1024 * 1024  # 每块大小为1MB
    upload_id = None
    parts = []

    # 初始化分块上传
    response = client.create_multipart_upload(
        Bucket=bucket,
        Key=key
    )
    upload_id = response['UploadId']

    # 逐块上传文件
    with open(file_path, 'rb') as file:
        part_number = 1
        while True:
            data = file.read(chunk_size)
            if not data:
                break

            response = client.upload_part(
                Bucket=bucket,
                Key=key,
                PartNumber=part_number,
                UploadId=upload_id,
                Body=data
            )
            parts.append({
                'PartNumber': part_number,
                'ETag': response['ETag']
            })
            part_number += 1

    # 完成分块上传
    response = client.complete_multipart_upload(
        Bucket=bucket,
        Key=key,
        UploadId=upload_id,
        MultipartUpload={'Parts': parts}
    )

    print('文件上传成功')

# 调用示例
file_path = 'your_file_path'
key = 'your_key'
upload_large_file(file_path, key)