mypy-boto3-lambda 1.14.31.0

Type annotations for boto3.Lambda 1.14.31 service, generated by mypy-boto3-buider 2.2.0

mypy-boto3-lambda

Type annotations for boto3.Lambda 1.14.31 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 Lambda service.

python -m pip install boto3-stubs[lambda]

How to use

Client annotations

LambdaClient provides annotations for boto3.client("lambda").

import boto3

from mypy_boto3_lambda import LambdaClient
from mypy_boto3_lambda.paginator import (
    ListAliasesPaginator,
    ListEventSourceMappingsPaginator,
    ListFunctionEventInvokeConfigsPaginator,
    ListFunctionsPaginator,
    ListLayersPaginator,
    ListLayerVersionsPaginator,
    ListProvisionedConcurrencyConfigsPaginator,
    ListVersionsByFunctionPaginator,
)
from mypy_boto3_lambda.type_defs import AccountLimitTypeDef, ...
from mypy_boto3_lambda.waiter import (
    FunctionActiveWaiter,
    FunctionExistsWaiter,
    FunctionUpdatedWaiter,
)

client: LambdaClient = boto3.client("lambda")

# 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: LambdaClient = session.client("lambda")

Paginators annotations

mypy_boto3_lambda.paginator module contains type annotations for all paginators.

client: LambdaClient = boto3.client("lambda")

# Explicit type annotations are optional here
# Type should be correctly discovered by mypy and IDEs
# VSCode requires explicit type annotations
list_aliases_paginator: ListAliasesPaginator = client.get_paginator("list_aliases")
list_event_source_mappings_paginator: ListEventSourceMappingsPaginator = client.get_paginator("list_event_source_mappings")
list_function_event_invoke_configs_paginator: ListFunctionEventInvokeConfigsPaginator = client.get_paginator("list_function_event_invoke_configs")
list_functions_paginator: ListFunctionsPaginator = client.get_paginator("list_functions")
list_layer_versions_paginator: ListLayerVersionsPaginator = client.get_paginator("list_layer_versions")
list_layers_paginator: ListLayersPaginator = client.get_paginator("list_layers")
list_provisioned_concurrency_configs_paginator: ListProvisionedConcurrencyConfigsPaginator = client.get_paginator("list_provisioned_concurrency_configs")
list_versions_by_function_paginator: ListVersionsByFunctionPaginator = client.get_paginator("list_versions_by_function")

Waiters annotations

mypy_boto3_lambda.waiter module contains type annotations for all waiters.

client: LambdaClient = boto3.client("lambda")

# Explicit type annotations are optional here
# Type should be correctly discovered by mypy and IDEs
# VSCode requires explicit type annotations
function_active_waiter: FunctionActiveWaiter = client.get_waiter("function_active")
function_exists_waiter: FunctionExistsWaiter = client.get_waiter("function_exists")
function_updated_waiter: FunctionUpdatedWaiter = client.get_waiter("function_updated")

Typed dictionations

mypy_boto3_lambda.type_defs module contains structures and shapes assembled to typed dictionaries for additional type checking.

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

Dynamic type annotations

mypy_boto3 command generates boto3.client/resource type annotations for mypy_boto3_lambda 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("lambda")

session_client = boto3.Session().client("lambda")