How do i put lists inside a class?

Question

Like this?

class Lists :
Ownerlist = []
Petlist = []
Temp = []
Op = []

#is this also correct:

class Pet :
Ownerlist = []
Petlist = []
Temp = []
Op = []

def __init__(self, name, age, gender)
self.name = name
self.age = age
self.gender = gender

#Or

class Pet:
def __init__(self, name, age, gender)
self.name = name
self.age = age
self.gender = gender
self.Ownerlist = []
self.Petlist = []
self.Temp = []
self.Op = []

Answer 1

Both ways are valid.
If you want it as class variable use Lists class data way,
If want those as instance data, then use 3rd way.

Answer 2

print(Lists.Ownerlist) # class variable has same values for every instance, while instance variable has its own copies of values separatly, for each object.

print(Pet.Ownerlist) #class variable acces through class name
print(Pet1("a",5,"m").Ownerlist) #instance way access.. , through object ..

#if you know static data in other languages, then its almost same. (but not completely..)

Answer 3

Jayakrishna🇮🇳 Whats the difference?

Answer 4

Why not have it as a function

Answer 5

Put 3 parameter in it or 4

Return list

Answer 6

Class List(Pet):
def __init__(self, list_owner, list_pet):
super()__init__()
self.list_owner = list_owner
self.list_pet = list_pet

def list_object(self):
self.list_owner = [self.Ownerlist , ]
self.list_pet = [self.Petlist , ]

return self.list_owner, self.list_pet

Something like this

Answer 7

Ion Kare
class List:
def listing():
….
Like this?

Answer 8

Hi