New Learner to Python: TypeError: __init__() missing 1 required positional argument: 'x'

Question

Hi all, I have only just started my Python learning journey. I have got the above error message to my code I am trying to write up. For the life of me, I cannot figure out where I am going wrong, would someone be a star and help me out! I'm using Sublime Text and the code is here below.
Thank you in advance!

class myClass:

def __init__(self, x):
self.x = x

#Returns x.
def getX(self):
return self.x

#Changes x.
def setX(self, newX):
self.x = newX

#Multiplies x by 20 and saved to y
#Reduces y by 5
#Prints y
def function1(self):
self.y = self.x * 20
self.y = - 5
print(y)

#prints the result of: number3 not equal to number2 and number1 less than number2
def function2(self):

number1 = 12
number2 = 42
number3 = 68

print(number3 != number2 and number1 < number2)

#prints a greeting
def function3(self):

print("Hello there!")

#Create an object of our class
class1 = myClass()

#Change x to the number 5
class1.setX("5")

#Call each function
class1.function1()
class1.function2()
class1.function3()

Error message: Traceback (most recent call last):
File "C:\Users\teams\Downloads\Part 1 (2).py", line 43, in <module>
class1 = myClass()
TypeError: __init__() missing 1 required positional argument: 'x'
[Finished in 111ms]

Answer 1

When you create the class1 variable you're missing the 'x' parameter.

In the MyClass init method, it shows that 2 parameters are needed: "self" and "x". Since it's a class, the "self" attribute refers to the class itself, so no need to include it when creating an object. If anything else is there you need to include it though.

class1 = myClass(7) # for example

Julia Smith No problem! I appreciate you asking a full question, with your code attached and bonus points for the error message included! Ask like this anytime and we'd all be glad to help.

Answer 2

Hi Slick, thank you so much! Thats really helpful, and I got there, I think. At least no errors came up! Thank you again <3