python how to register dynamic class in module

Question

I have module foo, inside this module I dynamically created class:

def superClassCreator():
    return type("Bar", (object,), {})

Now, what I want to achieve is to make this new dynamic class visible as a class of this module:

import foo
dir(foo)
>>> [... 'Bar' ...]

Do you know how to do this?

Answer 1

You can use Bar = superClassCreator() in foo (at the module level).

Alternatively, from another module, you can add Bar as an attribute on foo:

import foo

foo.Bar = superClassCreator()

or, if the name must be taken from the generated class:

import foo

generatedClass = superClassCreator()
setattr(foo, generatedClass.__name__, generatedClass)

From within the foo module, you can set it directly on globals():

generatedClass = superClassCreator()
globals()[generatedClass.__name__] = generatedClass
del generatedClass

with an optional del statement to remove the generatedClass name from the namespace again.