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Paginate Through IAM Users on AWS Using Python and Boto3

When listing AWS IAM Users in Boto3, you will find that not all the users are retrieved. This is because they are paginated.

To do a normal list_users api call:

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>>> import boto3
>>> iam = boto3.Session(region_name='eu-west-1', profile_name='default').client('iam')
>>> len(iam.list_users()['Users'])
100

Although I know there’s more than 200 users. Therefore we need to paginate through our users:

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>>> import boto3
>>> iam = boto3.Session(region_name='eu-west-1', profile_name='default').client('iam')
>>> paginator = iam.get_paginator('list_users')
>>> users = []
>>> all_users = []
>>> for response in paginator.paginate():
...     users.append(response['Users'])
...
>>> len(users)
3

>>> for iteration in xrange(len(users)):
...     for userobj in xrange(len(users[iteration])):
...         all_users.append((users[iteration][userobj]['UserName']))
...
>>> len(all_users)
210

For more information on this, have a look at AWS Documentation about Pagination

Thank You

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