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')
print(Tom._fields)
print(Lee._fields)
'''
run:
('name', 'age', 'profession')
('name', 'age', 'profession')
'''