Explicit Super in Python

What this snippet does

super() in multiple inheritance follows the MRO, ensuring each parent __init__ is called exactly once.

Expected output

D
B
C
A

Why practise typing this

Typing multiple inheritance code builds muscle memory for the symbols and indentation Python uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.

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