Object Instantiation

What this Python object instantiation question tests

This is a medium-difficulty Python language-knowledge question that quant firms use to assess how well you understand the mechanics of class definition, instantiation, and method resolution. It rewards precision about what actually happens when code runs, rather than assumptions about what you think it should do.

Questions like this probe your familiarity with Python's object model: how constructors are called, how attributes are bound to instances versus classes, and how the interpreter handles edge cases in method definition and invocation. Getting these details right matters in fast-moving trading codebases where subtle bugs can be costly.

• Constructor execution and instance initialization
• Class versus instance attributes
• Method binding and the role of self
• Error detection at parse time versus runtime