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 usage example
from boto3.session import Session
session = Session()
client = session.client("emr") # (1)
result = client.add_instance_fleet() # (2)
- client: EMRClient
- result: AddInstanceFleetOutputTypeDef
Paginator 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)
- client: EMRClient
- paginator: ListBootstrapActionsPaginator
- item: ListBootstrapActionsOutputTypeDef
Waiter usage example
from boto3.session import Session
session = Session()
client = session.client("emr") # (1)
waiter = client.get_waiter("cluster_running") # (2)
waiter.wait()
- client: EMRClient
- 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 usage example
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 AddInstanceFleetInputRequestTypeDef
session = Session()
client: EMRClient = session.client("emr")
kwargs: AddInstanceFleetInputRequestTypeDef = {...}
result: AddInstanceFleetOutputTypeDef = client.add_instance_fleet(**kwargs)
Paginator usage example
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)