iam_list_roles.py

iam_client=boto3.client('iam')
items = []
response = iam_client.list_roles()
while response:
    items += response['Roles']
    response = iam_client.list_roles(Marker=response['Marker']) if 'Marker' in response else None          
role_df = pd.DataFrame (items)

display (md(""" ## IAM Roles Summary
            * No .of Roles: {noroles}
            * Latest Created Role : {latestrole}({latestcreateddate})
            * Oldest Role : {oldestrole}, ({oldestcreateddate})
            """.format(noroles=len(role_df),latestrole=role_df[role_df.CreateDate == role_df.CreateDate.max()].Arn.tolist()[0], oldestrole =role_df[role_df.CreateDate == role_df.CreateDate.min()].Arn.tolist()[0], oldestcreateddate=role_df.CreateDate.min(), latestcreateddate=role_df.CreateDate.max()  )
           ))

display (md(""" ## List of Roles """))
display(HTML(role_df.to_html(index=False, justify="left")))