mypy-boto3-dynamodb 1.14.2.0

Type annotations for boto3.DynamoDB 1.14.2 service, generated by mypy-boto3-buider 2.2.0

mypy-boto3-dynamodb

Type annotations for boto3.DynamoDB 1.14.2 service compatible with mypy, VSCode, PyCharm and other tools.

Generated by mypy-boto3-buider 2.2.0.

More information can be found on boto3-stubs page.

How to install

Make sure you have mypy installed and activated in your IDE.

Install boto3-stubs for DynamoDB service.

python -m pip install boto3-stubs[dynamodb]

How to use

Client annotations

DynamoDBClient provides annotations for boto3.client("dynamodb").

import boto3

from mypy_boto3_dynamodb import DynamoDBClient, DynamoDBServiceResource
from mypy_boto3_dynamodb.paginator import (
    ListBackupsPaginator,
    ListTablesPaginator,
    ListTagsOfResourcePaginator,
    QueryPaginator,
    ScanPaginator,
)
from mypy_boto3_dynamodb.service_resource import ServiceResourceTablesCollection, Table
from mypy_boto3_dynamodb.type_defs import ArchivalSummaryTypeDef, ...
from mypy_boto3_dynamodb.waiter import TableExistsWaiter, TableNotExistsWaiter

client: DynamoDBClient = boto3.client("dynamodb")

# now client usage is checked by mypy and IDE should provide code auto-complete

# works for session as well
session = boto3.session.Session(region="us-west-1")
session_client: DynamoDBClient = session.client("dynamodb")

Paginators annotations

mypy_boto3_dynamodb.paginator module contains type annotations for all paginators.

client: DynamoDBClient = boto3.client("dynamodb")

# Explicit type annotations are optional here
# Type should be correctly discovered by mypy and IDEs
# VSCode requires explicit type annotations
list_backups_paginator: ListBackupsPaginator = client.get_paginator("list_backups")
list_tables_paginator: ListTablesPaginator = client.get_paginator("list_tables")
list_tags_of_resource_paginator: ListTagsOfResourcePaginator = client.get_paginator("list_tags_of_resource")
query_paginator: QueryPaginator = client.get_paginator("query")
scan_paginator: ScanPaginator = client.get_paginator("scan")

Waiters annotations

mypy_boto3_dynamodb.waiter module contains type annotations for all waiters.

client: DynamoDBClient = boto3.client("dynamodb")

# Explicit type annotations are optional here
# Type should be correctly discovered by mypy and IDEs
# VSCode requires explicit type annotations
table_exists_waiter: TableExistsWaiter = client.get_waiter("table_exists")
table_not_exists_waiter: TableNotExistsWaiter = client.get_waiter("table_not_exists")

Service Resource annotations

DynamoDBServiceResource provides annotations for boto3.resource("dynamodb").

resource: DynamoDBServiceResource = boto3.resource("dynamodb")

# now resource usage is checked by mypy and IDE should provide code auto-complete

# works for session as well
session = boto3.session.Session(region="us-west-1")
session_resource: DynamoDBServiceResource = session.resource("dynamodb")

Other resources annotations

mypy_boto3_dynamodb.service_resource module contains type annotations for all resources.

resource: DynamoDBServiceResource = boto3.resource("dynamodb")

# Explicit type annotations are optional here
# Type should be correctly discovered by mypy and IDEs
my_table: Table = resource.Table(...)

Collections annotations

mypy_boto3_dynamodb.service_resource module contains type annotations for all DynamoDBServiceResource collections.

resource: DynamoDBServiceResource = boto3.resource("dynamodb")

# Explicit type annotations are optional here
# Type should be correctly discovered by mypy and IDEs
tables: dynamodb_resources.ServiceResourceTablesCollection = resource.tables

Typed dictionations

mypy_boto3_dynamodb.type_defs module contains structures and shapes assembled to typed dictionaries for additional type checking.

def get_structure() -> ArchivalSummaryTypeDef:
    return {
      ...
    }

Dynamic type annotations

mypy_boto3 command generates boto3.client/resource type annotations for mypy_boto3_dynamodb and other installed services.

# Run this command after you add or remove service packages
python -m mypy_boto3

Generated type annotations provide overloads for boto3.client and boto3.resource, boto3.Session.client and boto3.Session.resource functions, so explicit type annotations are not needed.

• mypy supports function overloads as expected
• PyCharm also supports function overloads, but consumes a lot of RAM, use carefully if you have many services installed
• VSCode does not currently support function overloads, use explicit type annotations

# Type is discovered correctly by mypy and PyCharm
# VSCode still needs explicit type annotations
client = boto3.client("dynamodb")
resource = boto3.resource("dynamodb")

session_client = boto3.Session().client("dynamodb")
session_resource = boto3.Session().resource("dynamodb")