python 3.5 raiaing an error when import the class Manager in this module sayning name Manager is not define

[WoFy The 95s]

On Wednesday, 12 July 2017 18:20:32 UTC+5:30, Steve D'Aprano  wrote:
> Please COPY AND PASTE the FULL error, starting with the line "Traceback".
> 
> The code you show below looks fine, and you don't need an import, so I don't
> know what error you are getting.
> 
> 
> On Wed, 12 Jul 2017 10:31 pm, lunkambamuk at gmail.com wrote:
> 
> > class Person:
> >     def __init__(self, name, job=None, pay=0):
> >         self.name = name
> >         self.job = job
> >         self.pay = pay
> >     def lastName(self):
> >         return self.name.split()[-1]
> >     def giveRaise(self, percent):
> >         self.pay = int(self.pay * (1 + percent))
> >     def __repr__(self):
> >         return '[Person: %s, %s]' % (self.name, self.pay)
> > class Manager(Person):
> >     def giveraise(self, percent, bonus=.10):
> >         Person.giveRaise(self, percent + bonus)
> > 
> > if __name__ == '__main__':
> >     #self-test code
> >     bob = Person('Bob Smith')
> >     sue = Person('Sue Jones', job='dev', pay=100000)
> >     print(bob)
> >     print(sue)
> >     print(bob.lastName(), sue.lastName())
> >     sue.giveRaise(.10)
> >     print(sue.pay)
> >     tom = Manager('Tom Jones', 'mgr', 50000)
> >     tom.giveRaise(.10)
> >     print(tom.lastName())
> >     print(tom)
> 
> -- 
> Steve
> “Cheer up,” they said, “things could be worse.” So I cheered up, and sure
> enough, things got worse.


i tried from idle interpreter

from person import Manager



>>> from person import Manager
Traceback (most recent call last):
  File "<pyshell#95>", line 1, in <module>
    from person import Manager
ImportError: cannot import name 'Manager'


and this also 
>>> import person 

>>> tom = Manager('parias lunkamaba', 'mgr', 500000)

then i get this


Traceback (most recent call last):
  File "<pyshell#92>", line 1, in <module>
    tom=Manager('Tome Jones', 'mgr', 50000)
NameError: name 'Manager' is not defined