多部分上传S3

Question

我正在尝试完成到S3的多部分上传，在那里我能够从以下命令生成密钥并上传ID。传递值以完成上传时，出现错误。我用谷歌搜索来找出当我们在字符串数据类型中使用int值时弹出此错误。有人可以帮我解释为什么在S3上传中会发生这种情况。

bash-3.2$ aws s3api create-multipart-upload --bucket awspythnautomation --key 'docker'
{
    "Bucket": "awspythnautomation",
    "Key": "docker",
    "UploadId": "ySvpOo_9DwDLmfB84GqvJQAQeZQi1_U6_Qs2StKpvxCI.tKTFJKES9nNXDoY5zqkJX4yEuPdcICwTZ.X5xwkaNyYop1r9VOloMKjxji_TakQYLobYy7IcRoUUuHcebgh"
} 

bash-3.2$ aws s3api complete-multipart-upload --multipart-upload fileb://Docker.dmg --bucket awspythnautomation --key 'docker' --upload-id ySvpOo_9DwDLmfB84GqvJQAQeZQi1_U6_Qs2StKpvxCI.tKTFJKES9nNXDoY5zqkJX4yEuPdcICwTZ.X5xwkaNyYop1r9VOloMKjxji_TakQYLobYy7IcRoUUuHcebgh

***'in <string>' requires string as left operand, not int***