Boto3: get credentials dynamically?

Question

I am struggling to find out how I can get my aws_access_key_id and aws_secret_access_key dynamically from my code.

In boto2 I could do the following: boto.con

Answer 1

Can I suggest that accessing the keys is WRONG using boto3:

import boto3
session = boto3.Session(profile_name="my-profile")

dynamodb = session.resource(
    "dynamodb",
    region_name=session.region_name,
    # aws_access_key_id=session.get_credentials().access_key,
    # aws_secret_access_key=session.get_credentials().secret_key,
)

Notice, I commented out accessing the keys because ¹:

Any clients created from this session will use credentials from the [my-profile] section of ~/.aws/credentials.