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.

Client method usage example

# 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

Paginator usage example

# 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

Waiter usage example

# 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.

Client method usage example

# EMRClient usage example with type annotations

from boto3.session import Session

from mypy_boto3_emr.client import EMRClient
from mypy_boto3_emr.type_defs import AddInstanceFleetOutputTypeDef
from mypy_boto3_emr.type_defs import AddInstanceFleetInputTypeDef


session = Session()

client: EMRClient = session.client("emr")

kwargs: AddInstanceFleetInputTypeDef = {...}
result: AddInstanceFleetOutputTypeDef = client.add_instance_fleet(**kwargs)

Paginator usage example

# ListBootstrapActionsPaginator usage example with type annotations

from boto3.session import Session

from mypy_boto3_emr.client import EMRClient
from mypy_boto3_emr.paginator import ListBootstrapActionsPaginator
from mypy_boto3_emr.type_defs import ListBootstrapActionsOutputTypeDef


session = Session()
client: EMRClient = session.client("emr")

paginator: ListBootstrapActionsPaginator = client.get_paginator("list_bootstrap_actions")
for item in paginator.paginate(...):
    item: ListBootstrapActionsOutputTypeDef
    print(item)

Waiter usage example

# ClusterRunningWaiter usage example with type annotations

from boto3.session import Session

from mypy_boto3_emr.client import EMRClient
from mypy_boto3_emr.waiter import ClusterRunningWaiter

session = Session()
client: EMRClient = session.client("emr")

waiter: ClusterRunningWaiter = client.get_waiter("cluster_running")
waiter.wait(...)