On 19/06/17 20:32, Evuraan wrote:
> class Employee:
> """Class with FirstName, LastName, Salary"""
> def __init__(self, FirstName,LastName, Salary):
> def __str__(self):
> return '("{}" "{}" "{}")'.format(self.FirstName,
> self.LastName,
self.Salary)
> class Developer(Employee):
> """Define a subclass, augment with ProgLang"""
> def __init__(self, FirstName,LastName, Salary, ProgLang):
> Employee.__init__(self, FirstName,LastName, Salary)
> self.ProgLang = ProgLang
> def dev_repr(self):
> return '("{}" "{}" "{}" "{}")'.format(self.FirstName,
> self.LastName,
self.Salary,
self.ProgLang)
> a = Employee("Abigail", "Buchard", 83000)
> print(a)
> dev_1 = Developer("Samson", "Sue", 63000, "Cobol",)
> print(dev_1)
> print(dev_1.dev_repr())
>
> running that yields,
>
> ("Abigail" "Buchard" "83000")
> ("Samson" "Sue" "63000")
> ("Samson" "Sue" "63000" "Cobol")
>
> My doubt is, how can we set the __str__ method work on the Employee
> subclass so that it would show ProgLang too, like the
> print(dev_1.dev_repr())?
You can't show ProgLang in Employee because it doesn't exist.
You can only show it on Developer. To make __str__() work for
developer you need to define it as you did for Employee.
You could just call self.dev_repr()
Or you could call super.__str__() and append self.ProgLang.
eg.
return super().__str__() + " " + self.ProgLang
Does that answer you question?
--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
Follow my photo-blog on Flickr at:
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