constructor and kv files

[jdd...@gmail.com]

Hi, I have a question concerning the constructors of self-defined widgets. 

If we defined the widget in a kv file, can we still define a constructor __init__() ? 

Because apart from defining the layout etc in kv file, I want to call some functions after initialisation. 

Now what I do to achieve this, is that in the App class' build() method I build the widget and then call it's function, but this might not be a good practice...

[Alexander Taylor]

Certainly, you can create any widget subclass in python as normal and put whatever you like in its __init__. Any kv rule for the widget will be applied when you call super(YourWidgetName, self).__init__(*args, **kwargs).

Just make sure your kv for the widget is a normal kv rule ('<YourWidgetName>:'), not a dynamic class (which would be e.g. '<YourWidgetName@WidgetBaseClass>').

[mx]

Thank you Alexander, that works ! 

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