Python program not working..The main part keep showing error

Question

class point:
    def __init__(self,z,d):
        self.x = z
        self.y = d
    def display(self,z,d):
        self.x = self.z
        self.y = self.d
    def setX(self, z):
        self.x = z
    def setY(self, d):
        self.y = d
    def getX(self):
       return self.x
    def getY(self):
       return self.y
    def show(self):
       print(self.x)
       print(self.y)

p1 = point() //error
print("Point P1:")
p1.show()
print("Updated value:")
p1.display(5, 6)
p1.setX(9)
p1.setY(4)
p1.show()
print("Point P2:")
p2=point()
p2.setX(9)
p2.setY(4)
p2.show()
print("Updated value:")
p2.display(6, 3)
p2.show()

My program keep showing me error that z and d are missing in the object section,,i donno how to correct it i keep trying but more n more errors keeps showing up.

Traceback (most recent call last):
  File "P:\xxxyyy.py", line 29, in <module>
    p1 = point() //error
TypeError: __init__() missing 2 required positional arguments: 'z' and 'd'

When asking about code that produces an exception, please include the complete Traceback in the question: copy and paste it then format it as code. — wwii
– wwii, Commented Sep 25, 2018 at 18:48

Aquarthur · Accepted Answer · 2018-09-25 18:54:38Z

3

Don't forget to pass in z and d in the constructor, eg:

p1 = point(1,2)

Also, in the display function, you try to set self.x to self.z and self.y to self.d. self.z and self.d don't exist (self means it should be a class attribute, which it isn't), you should instead use the function's input parameters:

self.x = z
self.y = d

edited Sep 25, 2018 at 18:54

answered Sep 25, 2018 at 18:45

Aquarthur

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3 Comments

wwii Over a year ago

... or give those parameters default values in the method definition.

Aquarthur Over a year ago

Yep! I just assumed he meant to use the function parameters since they are there and match up to self.z and self.d. Whichever way makes more sense is the better way

Noob student Over a year ago

i did try putting 1,2 in it,, it wasn't working with that too..also the self thing i wrote it like the statement u told me bout. but since it was showing error so i changed it(silly me duh)

vash_the_stampede · Accepted Answer · 2018-09-25 18:59:10Z

0

class point: 
    def __init__(self,z,d): 
        self.x = z 
        self.y = d 
    def display(self,z,d): 
        self.x = z #not self.z
        self.y = d #not self.d
    def setX(self, z): 
        self.x = z 
    def setY(self, d): 
        self.y = d 
    def getX(self): 
       return self.x 
    def getY(self): 
       return self.y 
    def show(self): 
       print(self.x) 
       print(self.y)

First fix this, you are updating with display using two new variables that its taking in, so we just cast those variables not self.z / self.d

p1 = point(1,2)
print("Point P1:")
p1.show()

Create your instance with values that it needs __ini__(self, z, d) needs a z and d value

print("Updated value:")
p1.display(5, 6)
p1.setX(9)
p1.setY(4)
p1.show()

If p1.display is updating the values to 5,6 then why update them again with setX/setY pretty much you are making z=5, d=6 then z=9 d=4

And then you just repeat these small errors for p2

answered Sep 25, 2018 at 18:59

vash_the_stampede

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2 Comments

Noob student Over a year ago

thanks for explaining.. about the set n get thing i had the assignment to do it in both ways. So thatsy i used display n also set n get fuctions

vash_the_stampede Over a year ago

np would appreciate if this solved your problem if you checked solved :)

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