Objects and classes in Python (and JavaScript)
summary
Hands-on recipes for actual problems: reading files while keeping the original string but attaching filename and line number by subclassing str for labeled lines; creating properties by turning a small class into a property factory with property_from_class decorator; making named integers that print as words while behaving like ints; compact bitset-like subsets stored as raw integers; converting class data to tuples and back; using class decorators to avoid complex metaclasses; a brief demo showing JavaScript objects behave like Python classes. Training materials are on USB and updated.
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chapters (6)
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