dynamo_insert.py

import boto3

dynamodb = boto3.client('dynamodb', region_name='us-east-2')

dynamodb.put_item(TableName='emails', 
    Item={
        'id': {'S': 'ryan.mchale@gmail.com'}
    }
)

dynamo_read.py

import boto3

dynamodb = boto3.client('dynamodb', region_name='us-east-2')

table = dynamodb.get_item(TableName='emails', 
    Key={
        'id': {'S': 'ryan.mchale@gmail.com'}
    }
)

print('exists' if 'Item' in table else 'does not exist');


table = dynamodb.get_item(TableName='emails', 
    Key={
        'id': {'S': 'foo'}
    }
)

print('exists' if 'Item' in table else 'does not exist');

requirements.txt

boto3==1.12.34
botocore==1.15.34
docutils==0.15.2
jmespath==0.9.5
python-dateutil==2.8.1
s3transfer==0.3.3
six==1.14.0
urllib3==1.25.8