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My code is this:
class Employee(object):
"""Models real-life employees!"""
def __init__(self, employee_name):
self.employee_name = employee_name
def calculate_wage(self, hours):
self.hours = hours
return hours * 20.00
# Add your code below!
class PartTimeEmployee(Employee):
def calculate_wage(self, hours):
self.hours = hours
return hours * 12.00
def full_time_wage(self,hours):
return super(PartTimeEmployee,self).calculate_wage(self,hours)
milton = PartTimeEmployee("Milton")
print milton.full_time_wage(8)
I’m getting this error:
Traceback (most recent call last):
File “python”, line 19, in
File “python”, line 16, in full_time_wage
TypeError: calculate_wage() takes exactly 2 arguments (3 given)
What am I doing wrong?
1 Like
Hi @arraysolver16164,
The problem is with this line in the full_time_wage method of PartTimeEmployee:
return super(PartTimeEmployee,self).calculate_wage(self,hours)
Within that line, super(PartTimeEmployee,self) serves as an object that represents an instance of PartTimeEmployee that behaves as an instance of its superclass, Employee. This is done so that you can access the calculate_wage method of Employee instead of the method of the same name that is defined for PartTimeEmployee, effectively enabling the instance of PartTimeEmployee to collect wages at the Employee rate, whenever circumstances arise that merit that arrangement. Just as with a call to the calculate_wage method from an instance of Employee, we need to omit the argument corresponding to self, and pass only one explicit argument corresponding to the hours parameter. The object from which the method is called implicitly becomes the argument corresponding to self. Here, that object is super(PartTimeEmployee,self). Taking all of this into consideration, the problematic line should be changed to:
return super(PartTimeEmployee, self).calculate_wage(hours)
This post was edited on July 31, 2019 to make minor adjustments to the wording.
3 Likes
return super(PartTimeEmployee, self).calculate_wage(hours).
try this , that means you don’t have to introduce self with hours
class Employee(object):
"""Models real-life employees!"""
def __init__(self, employee_name):
self.employee_name = employee_name
def calculate_wage(self, hours):
self.hours = hours
return hours * 20.00
# Add your code below!
class PartTimeEmployee(Employee):
def calculate_wage(self, hours):
self.hours = hours
return hours * 12.00
def full_time_wage(self, hours):
return super(PartTimeEmployee, self).calculate_wage(hours)
milton = PartTimeEmployee('Milton')
print milton.full_time_wage(10)
all working thanks for that
