import collections
Worker = collections.namedtuple('Worker', 'name age profession')
Tom = Worker(name='Tom', age=45, profession='Programmer')
Lee = Worker(name='Lee', age=34, profession='Scientist')
for i in [Tom, Lee]:
print('{} is a {} year old {}'.format(*i))
'''
run:
Tom is a 45 year old Programmer
Lee is a 34 year old Scientist
'''