How to choose an AWS profile when using boto3 to connect to CloudFront

I think the docs aren’t wonderful at exposing how to do this. It has been a supported feature for some time, however, and there are some details in this pull request.

So there are three different ways to do this:

Option A) Create a new session with the profile

    dev = boto3.session.Session(profile_name="dev")

Option B) Change the profile of the default session in code

    boto3.setup_default_session(profile_name="dev")

Option C) Change the profile of the default session with an environment variable

    $ AWS_PROFILE=dev ipython
    >>> import boto3
    >>> s3dev = boto3.resource('s3')

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