Is there a way to create a list of classes, but not call them until you loop through them?

I’ve created a list of classes that I’m importing from another file, there are about 50 which is why I’m trying to do it this way. The below list is in my __init__.py file:

TABLES = [
   Accounts(),
   Activities()
]

but I want to actually call them here because I need to add company names for each table.

for table in TABLES:
    snowflake = SnowflakeLoadOperator(
        task_id=f'load_{table.name}_to_snowflake',
        table=table(company='company_name_1'),
        partition=table.get_location_partition(ds)
    )

for table in TABLES:
    snowflake = SnowflakeLoadOperator(
        task_id=f'load_{table.name}_to_snowflake',
        table=table(company='company_name_2'),
        partition=table.get_location_partition(ds)
    )

but I keep seeing the error:

table=table(company=’company_name_1′), TypeError: ‘Accounts’ object is
not callable

This is what one of my classes look like, similar methods but different values:

class Accounts(Table):
    name = None
    schema = 'accounts'

    def __init__(self, company=None):
        self.name = f'{company}_accounts'
        self.location_base = f's3://my_bucket/{self.schema.upper()}/{company}/accounts/'

>Solution :

Omit the parentheses in the definition of TABLES and you’ll store references to the classes themselves, rather than constructing instances of them:

TABLES = [
   Accounts,
   Activities
]

Then you’ll be able to call them when looping later, using table(arg) the same way you’d use Accounts(arg) or Activities(arg).