Trouble with inheritance

[mtermik]

I am having a bit of an issue when it comes to one class inheriting another. As a simple example I have a class called Person, which contains generic information about a person object. This class is contained in it's own file called person.rpy. I have another class called Male, which contains specific information about a male character. This class is contained in it's own file called male.rpy. Both files are located in the same sub-folder (Objects) with in the project structure. I've included an empty __init__.py file within the Objects folder as well.

The code I currently have is this:

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$ from person import Person

init python:
    class Male(Person):
        def __init__(self, name, *args, **kwargs):
            super().__init__(*args, **kwargs)

However, I receive the following error when launching the project:

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 "NameError: name 'Person' is not defined".

I realize that I can solve the problem by nesting the Person class within the same file as the Male class. But that is sub-optimal as I have a Female class which also inherits from Person, and having multiple classes contained within the same file is an abhorrent coding practice.

So my question is this, am I improperly referencing the import, missing a step, or some otherwise messing it up myself, or is it a limitation of renpy that it cannot inherit from a class in a different file?

[m_from_space]

It's important to know that Renpy tries to initialize Python "init" blocks according to their priority. Maybe that's your problem. You should also put your imports behind an init block, maybe that's the actual problem. Just throwing things here.

https://www.renpy.org/dev-doc/html/pyth ... -statement

Code: Select all

init python:
    from person import Person
    class Male(Person):
        def __init__(self, name, *args, **kwargs):
            super().__init__(*args, **kwargs)

[mtermik]

It's important to know that Renpy tries to initialize Python "init" blocks according to their priority. Maybe that's your problem. You should also put your imports behind an init block, maybe that's the actual problem. Just throwing things here.

https://www.renpy.org/dev-doc/html/pyth ... -statement

Code: Select all

init python:
    from person import Person
    class Male(Person):
        def __init__(self, name, *args, **kwargs):
            super().__init__(*args, **kwargs)

Thanks for the suggestion but unfortunately I had already tried that. Putting the import inside of the init block has the engine attempting to load person as a module not an individual class. Which results in the following error:

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ModuleNotFoundError: No module named 'person'

[Ocelot]

You do not have to use import when referring to a class defined in another rpy file.

Because functionally all rpy files work as a single file, no need for import. Just make sure that init order is correct (you want Person be initialized before Male, for example).

[mtermik]

You do not have to use import when referring to a class defined in another rpy file.

Because functionally all rpy files work as a single file, no need for import. Just make sure that init order is correct (you want Person be initialized before Male, for example).

I was wondering if order of initialization was a problem. How do I define the init order within the project?

[Ocelot]

https://www.renpy.org/doc/html/python.h ... -statement

TL;DR: add a init priority number between init and python: init -123 python:

[mtermik]

Ok so I think I have it all figured out now, as my project compiles and runs without any errors being thrown. However, I hate when someone figures something out, leaves the thread and never informs others about the solution. So for anyone else who runs into this issue, I had to adjust my files accordingly.

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init 1 python:
    class Person:
        def __init__(self):

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init 2 python:
    class Male(Person):
        def __init__(self, name, *args, **kwargs):
            super().__init__(*args, **kwargs)

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init 2 python:
    class Female(Person):
        def __init__(self, name, *args, **kwargs):
            super().__init__(*args, **kwargs)

No need for the importing of the class into the sub-classes.

[m_from_space]

I was wondering if order of initialization was a problem. How do I define the init order within the project?

It's what I mentioned first and I also provided the link for it, make sure to properly read replies.