dynamodb.py

import boto3
dbclient = boto3.client('dynamodb')

def checkdb(build=None, pid=None):
    if build is not None and pid is not None:
        r = dbclient.scan(TableName='osbuilds',
                          FilterExpression=
                              'build = :build and productid = :pid',
                          ExpressionAttributeValues={
                              ':build':{'S':build},
                              ':pid':{'S':pid}
                          })
        return r['Count']