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Python inheritance diagram: base class with shared attributes/methods; derived subclasses inherit and override behavior, showing single, multiple, multilevel inheritance relations.

Diagram of creating classes and objects: define class with fields and methods, instantiate objects, set properties, call methods, show inheritance, encapsulation, and sample usage.

Diagram showing Python enumerate usage in a for loop: enumerate returns (index, value) pairs, unpacked into index and item vars, enabling indexed iteration and printing index:item.

Illustration comparing mutable and immutable Python objects: mutable types (lists, dicts, sets) all can change in place; immutable (int, str, tuple) can't be altered after creation

Diagram showing step-by-step conversion of text to integers: identify numeric characters, trim whitespace, handle signs and bases, parse with error checking, validate final integer

Illustration showing Python built-in data types: numbers, strings, lists, tuples, sets, dictionaries, booleans, bytes, None; icons and short code examples labeled clearly. with IDs

Image illustrating merging two Python dicts: keys and values combined, duplicates replaced by right entries. Shown methods: dict.update(), {**a,**b} unpacking, and dicts union (|).

Image of code snippets demonstrating ways to check for empty strings: using trim() length or equality checks, handling null vs empty, and example inputs with corresponding outputs.

Image comparing Python '==' vs 'is': '==' tests value equality, 'is' tests object identity. Example shows two objects with same value but different identities and memory addresses.