class Myclass:
"""My class """
heighe = 180
age = 18
def __init__(self,name,age=20):
self.name = name
self.age = age
jerry = Myclass("jerry",20)
tom = Myclass("tom")
#Myclass.age = 50
print(Myclass.age,tom.age,jerry.age) # 50 20 20
print(Myclass.heighe,tom.heighe,jerry.heighe) # 180 180 180
#jerry.heighe = 170
print(Myclass.heighe,tom.heighe,jerry.heighe) # 180 180 170
#tom.heighe +=10
print(Myclass.heighe,tom.heighe,jerry.heighe) # 180 190 180
#Myclass.heighe += 20
print(Myclass.heighe,tom.heighe,jerry.heighe) # 200 200 200
Myclass.weight = 90
print(Myclass.weight,tom.weight,jerry.weight) # 90 90 90
print(Myclass.__dict__["age"]) # 18
print(jerry.__dict__["age"]) # 20
print(tom.__dict__["heighe"]) # KeyError: 'heighe'
print(Myclass.__dict__["weight"]) # 90
