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[英]Aws Wrangler giving not implemented error: impossible to query aws athena
[英]Run aws Athena query by Lambda: error name 'response' is not defined
我創建了一個 AWS lambda function 和 python 3.9 來運行 Athena 查詢並獲取查詢結果
import time
import boto3
# create Athena client
client = boto3.client('athena')
# create Athena query varuable
query = 'select * from mydatabase.mytable limit 8'
DATABASE = 'mydatabase'
output='s3://mybucket/'
def lambda_handler(event, context):
# Execution
response = client.start_query_execution(
QueryString=query,
QueryExecutionContext={
'Database': DATABASE
},
ResultConfiguration={
'OutputLocation': output,
}
)
query_execution_id = response['QueryExecutionId']
time.sleep(10)
result = client.get_query_results(QueryExecutionId=query_execution_id)
for row in results['ResultSet']['Rows']:
print(row)
我在測試時收到此錯誤消息“[ERROR] NameError:未定義名稱'response'”
您在lambda_handler
function 中定義response
變量。但您在全局 scope 中引用它,在 function 之外,此處:
query_execution_id = response['QueryExecutionId']
該變量未在該 scope 上定義,因此出現錯誤消息。 看來您可能只是缺少所有這些行的縮進:
query_execution_id = response['QueryExecutionId']
time.sleep(10)
result = client.get_query_results(QueryExecutionId=query_execution_id)
for row in results['ResultSet']['Rows']:
print(row)
在 Python 縮進是語法! 如果您希望這些行成為lambda_handler
function 的一部分,那么它們需要有正確的縮進才能將它們放在 function 的 scope 中,如下所示:
def lambda_handler(event, context):
# Execution
response = client.start_query_execution(
QueryString=query,
QueryExecutionContext={
'Database': DATABASE
},
ResultConfiguration={
'OutputLocation': output,
}
)
query_execution_id = response['QueryExecutionId']
time.sleep(10)
result = client.get_query_results(QueryExecutionId=query_execution_id)
for row in results['ResultSet']['Rows']:
print(row)
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