Examples

Index > EMR > Examples

Auto-generated documentation for EMR type annotations stubs module mypy-boto3-emr.

Client

Implicit type annotations

Can be used with boto3-stubs[emr] package installed.

Write your EMR code as usual, type checking and code completion should work out of the box.

# EMRClient usage example

from boto3.session import Session


session = Session()

client = session.client("emr")  # (1)
result = client.add_instance_fleet()  # (2)

1. client: EMRClient
2. result: AddInstanceFleetOutputTypeDef

# ListBootstrapActionsPaginator usage example

from boto3.session import Session


session = Session()
client = session.client("emr")  # (1)

paginator = client.get_paginator("list_bootstrap_actions")  # (2)
for item in paginator.paginate(...):
    print(item)  # (3)

1. client: EMRClient
2. paginator: ListBootstrapActionsPaginator
3. item: ListBootstrapActionsOutputTypeDef

# ClusterRunningWaiter usage example

from boto3.session import Session


session = Session()
client = session.client("emr")  # (1)

waiter = client.get_waiter("cluster_running")  # (2)
waiter.wait()

1. client: EMRClient
2. waiter: ClusterRunningWaiter

Explicit type annotations

With boto3-stubs-lite[emr] or a standalone mypy_boto3_emr package, you have to explicitly specify client: EMRClient type annotation.

All other type annotations are optional, as types should be discovered automatically. However, these type annotations can be helpful in your functions and methods.