boto3 aws find all IAM accesskeys details for the account

gistfile1.py

import boto3

boto3.setup_default_session(profile_name='IAM')

resource = boto3.resource('iam')
client = boto3.client("iam")

KEY = 'LastUsedDate'

for user in resource.users.all():
    Metadata = client.list_access_keys(UserName=user.user_name)
    if Metadata['AccessKeyMetadata'] :
        for key in user.access_keys.all():
            AccessId = key.access_key_id
            Status = key.status
            LastUsed = client.get_access_key_last_used(AccessKeyId=AccessId)
            if (Status == "Active"):
                if KEY in LastUsed['AccessKeyLastUsed']:
                    print "User: " , user.user_name ,  "Key: " , AccessId , "AK Last Used: " , LastUsed['AccessKeyLastUsed'][KEY]
                else:
                    print "User: ", user.user_name  , "Key: ",  AccessId , "Key is Active but NEVER USED"
            else:
                print "User: ", user.user_name  , "Key: ",  AccessId , "Keys is InActive"
    else:
        print "User: ", user.user_name  , "No KEYS for this USER"    #".. proof: " , Metadata

AttributeError: 'IAM' object has no attribute 'resource'