I seem to have run into a really confusing error. Despite importing the .py file containing my class, Python is insistent that the class doesn't actually exist.

Class definition in testmodule.py:

class Greeter:
    def __init__(self, arg1=None):
        self.text = arg1

    def say_hi(self):
        return self.text

main.py:

#!/usr/bin/python
import testmodule

sayinghi = Greeter("hello world!")
print(sayinghi.say_hi())

I have a theory that the import is not working as it should. How do I do this correctly?

python class module
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