Scenario 1

Mutable vs immutable objects (default arguments, references)

Scenario 2

Numeric operations (banker's rounding, conversion limits, float precision)

Scenario 3

Bytecode and compiler optimization (constant folding, AST vs peephole)

Scenario 4

Descriptor protocol and method binding (__get__ protocol, bound method creation)

Scenario 5

Scope and name resolution (LEGB rule, closures, UnboundLocalError)

Scenario 6

Exception handling (variable deletion, try-finally-return)

Scenario 7

String interning and identity (is vs ==)

Scenario 8

Class and object behavior (attributes, method identity, name mangling)

Scenario 9

Closure and scope semantics (late binding, inspect.getclosurevars, generator scoping)

Scenario 10

Unicode and character encoding (lookalike characters, raw string limitations)