A session manages state about a particular configuration. By default a session is created for you when needed. However it is possible and recommended to maintain your own session(s) in some scenarios. Sessions typically store:
The boto3 module acts as a proxy to the default session, which is created automatically when needed. Example default session use:
# Using the default session
sqs = boto3.client('sqs')
s3 = boto3.resource('s3')
It is also possible to manage your own session and create clients or resources from it:
# Creating your own session
session = boto3.session.Session()
sqs = session.client('sqs')
s3 = session.resource('s3')