AWS Glue NameError: name 'DynamicFrame' is not defined

Question

我正在尝试根据以下代码片段使用 toDF 和 fromDF 函数 (https://docs.aws.amazon.com/glue/latest/dg/aws-glue-api-crawler-pyspark-extensions-dynamic-frame.html#aws-glue-api-crawler-pyspark-extensions-dynamic-frame-fromDF) 将数据帧转换为动态帧：

import sys
from awsglue.transforms import *
from awsglue.utils import getResolvedOptions
from pyspark.context import SparkContext
from awsglue.context import GlueContext
from awsglue.job import Job

## @params: [JOB_NAME]
args = getResolvedOptions(sys.argv, ['JOB_NAME'])

sc = SparkContext()
glueContext = GlueContext(sc)
spark = glueContext.spark_session
job = Job(glueContext)
job.init(args['JOB_NAME'], args)
## @type: DataSource
## @args: [database = "test-3", table_name = "test", transformation_ctx = "datasource0"]
## @return: datasource0
## @inputs: []
datasource0 = glueContext.create_dynamic_frame.from_catalog(database = "test-3", table_name = "test", transformation_ctx = "datasource0")


foo = datasource0.toDF()
bar = DynamicFrame.fromDF(foo, glueContext, "bar")

但是，我在线上遇到错误：

bar = DynamicFrame.fromDF(foo, glueContext, "bar")

错误说：

NameError: name 'DynamicFrame' is not defined

我尝试了通常的谷歌搜索无济于事，我无法从其他示例中看出我做错了什么。有谁知道我为什么会收到此错误以及如何解决它？

Answer 1

from awsglue.dynamicframe import DynamicFrame

导入动态帧

Answer 2

您需要从 awsglue.dynamicframe 模块中导入 DynamicFrame class：

from awsglue.dynamicframe import DynamicFrame

AWS Glue ETL 文档提供的示例中缺少很多内容。

但是，您可以参考以下 GitHub 存储库，其中包含大量使用 Glue ETL 执行基本任务的示例：

AWS Glue samples

AWS Glue NameError: name 'DynamicFrame' is not defined

AWS Glue NameError: name 'DynamicFrame' is not defined

amazon-web-services

pyspark

aws-glue