what is used to create an object in python code example

Example 1: what is an object in python

#objects are collections of data

Example 2: class in python

class ComplexNumber:
    def __init__(self, r=0, i=0):
        self.real = r
        self.imag = i

    def get_data(self):
        print(f'{self.real}+{self.imag}j')


# Create a new ComplexNumber object
num1 = ComplexNumber(2, 3)

# Call get_data() method
# Output: 2+3j
num1.get_data()

# Create another ComplexNumber object
# and create a new attribute 'attr'
num2 = ComplexNumber(5)
num2.attr = 10

# Output: (5, 0, 10)
print((num2.real, num2.imag, num2.attr))

# but c1 object doesn't have attribute 'attr'
# AttributeError: 'ComplexNumber' object has no attribute 'attr'
print(num1.attr)

Example 3: how to create an object in python

class ClassName:
    self.attribute_1 = variable_1 #Set attributes for all object instances
    self.attrubute_2 = variable_2
    
    def __init__(self, attribute_3, attribute_4): #Set attributes at object creation
        self.attribute_3 = attribute_3            
        self.attribute_4 = attribute_4

    def method(self): #All methods should include self
		print("This is a method example.") #Define methods just like functions 


object = Object(4, "string") #Set attribute_3 and attribute_4
object.method() #Methods are called like this.