Creating classes dynamically in python [duplicate]

Question

Is it a good coding practice to have the class name as variable. E.g

def create_class(class_name):
   class class_name:
     def __init__(self):
       do_sth....
   class_instance = class_name()
   return class_instance


for object in objects:
      res = create_class(object)

I wanted to create different classes which are present in a list like objects=[person,vehicle, location ..]. What could be other alternative way to do it ?

You know you are not actually creating a dynamic class name here? regardless of what the content of the parameter is the class will still be class_name. — Guy
– Guy, Commented Apr 25, 2022 at 6:27

év3v · Accepted Answer · 2022-04-25 06:37:04Z

-1

class_name is a class, you can set a name property for your class, like this:

class class_name:
    def __init__(self,name):
        self.name = name
    def __str__(self):
        return str(self.name)


objects=["person","vehicle","location"]
for obj in objects:
    res = class_name(obj)
    print(res)

answered Apr 25, 2022 at 6:37

év3v

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2 Comments

Gino Mempin Over a year ago

Even with the .name attribute, it's still the same class. This just creates different instances of it.

év3v Over a year ago

yeah i know, it will be always a class_name object , he needs to code a class for each objects , attributes/properties aren't the same ( i guess ... ?). Is there a reason to create a dynamic class, if they have the same attributes why didn't make you inheritance?

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