class1.py

class Complex:
    def __init__(self, real, imag, name):
        self.r = real
        self.i = imag
        self.name = name
    name = 'Complex_default'
    r = 0.0
    i = 1.1
    doc = "default doc"

print(Complex.name)
Complex.name = "hello"

x = Complex(1.0, 2.3, 'x')
print((x.r, x.i))
print(x.name)
print(Complex.name)
x.name = 'zzzz'
print(x.name)
print()

y = Complex(9.3, 8.5, 'y')
print(y.r, y.i)
print(y.name)
print()

Complex.name = "world"
print(x.name, y.name)
print()

Complex.r = 0
print(x.r, y.r)
print(Complex.name)
print()

#x.doc = 'xxxxx'
Complex.doc = 'ccccccc'
print(x.doc)
print(Complex.doc)
print()