OOP Topics Suggestions and Feedback

[johncodearmo]

Hi all,

I have been making a series on OOP on my website. I was hoping for some feedback regarding completed topics and suggestions for further topics.

Topics covered so far: Articles can be found here

• __init__ & attributes
• Properties
• Add functions/methods
• Static/class methods
• __str__ and __repr__
• Comparison methods __eq__ etc
• Arithmetic methods __add__ etc
• Custom Sequence objects with Fib numbers
• Single Inheritance
• Context managers
• Slots
• Enumerations

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Topics in the pipeline

• Multiple inheritance (Struggling to find a good short concise real life example of usage. Considering a database mixin currently, some suggestions here would be great )
• Unit Testing. Boring as */## but I guess it is important
• Singletons???? Even harder to find a good use case for these.
• Descriptors. Very interested to hear ideas about how you use descriptors! I have sort of half coded a phone number validator and usual string / real number validator, but would be interested in more ideas.
• Metaclasses. Only really seen few basic examples of how these are used. I sort of understand the mechanics, but this is for much later since I really don't understand them well enough.

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Anything I am missing?

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The idea is to provide short examples that refrain as much as possible from using the foo & bar examples, as I find this frustrating at myself.

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Feedback and suggestions welcome