引发语法错误的flask-dynamodb的示例？ [英] Example for flask-dynamodb that is throwing an exception for Syntax error?

问题描述

查看flask_dynamo api的示例。 https://flask-dynamo.readthedocs.io/en/latest/quickstart。 html 只是好奇为什么会出错？

Looking at the example for the flask_dynamo api. https://flask-dynamo.readthedocs.io/en/latest/quickstart.html Just curious why this would give an error?

from flask import Flask
from flask_dynamo import Dynamo



app = Flask(__name__)
app.config['DYNAMO_TABLES'] = [
            {
                 TableName='users',
                 KeySchema=[dict(AttributeName='username', KeyType='HASH')],
                 AttributeDefinitions=[dict(AttributeName='username', AttributeType='S')],
                 ProvisionedThroughput=dict(ReadCapacityUnits=5, WriteCapacityUnits=5)
            }, {
                 TableName='groups',
                 KeySchema=[dict(AttributeName='name', KeyType='HASH')],
                 AttributeDefinitions=[dict(AttributeName='name', AttributeType='S')],
                 ProvisionedThroughput=dict(ReadCapacityUnits=5, WriteCapacityUnits=5)
            }
        ]

错误是：TableName ='users'，
^
SyntaxError：无效语法

The error is: TableName='users', ^ SyntaxError: invalid syntax

此无效语法如何？

推荐答案

也许是文档中的错字？我猜想这样做的目的是使数组中的项目作为字典。尝试这样做：

Maybe a typo in the docs? I'm guessing the intention is to have the items in the array as dictionaries. Try to do that:

app.config['DYNAMO_TABLES'] = [
            dict(
                 TableName='users',
                 KeySchema=[dict(AttributeName='username', KeyType='HASH')],
                 AttributeDefinitions=[dict(AttributeName='username', AttributeType='S')],
                 ProvisionedThroughput=dict(ReadCapacityUnits=5, WriteCapacityUnits=5)
            ),
            dict(
                 TableName='groups',
                 KeySchema=[dict(AttributeName='name', KeyType='HASH')],
                 AttributeDefinitions=[dict(AttributeName='name', AttributeType='S')],
                 ProvisionedThroughput=dict(ReadCapacityUnits=5, WriteCapacityUnits=5)
            )
        ]

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