Python - Custom Exceptions
Why might adding custom attributes directly to instances be discouraged in some cases?
Why might adding custom attributes directly to instances be discouraged in some cases?
hard🧠 Conceptual Q10 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand implications of dynamic attribute addition
Adding attributes dynamically can make code harder to maintain and cause bugs if some instances have attributes others lack.Step 2: Evaluate options
It can cause unexpected behavior if attributes are added inconsistently correctly states the risk of inconsistent attributes. Python does not allow adding attributes dynamically is false; Python allows dynamic attributes. It always raises an error when accessing attributes is false; errors occur only if attribute missing and accessed without check. It slows down the program significantly is false; performance impact is minimal.Final Answer:
It can cause unexpected behavior if attributes are added inconsistently -> Option CQuick Check:
Inconsistent dynamic attributes cause bugs [OK]
Quick Trick: Dynamic attributes can cause maintenance issues if inconsistent [OK]
Common Mistakes:
MISTAKES- Thinking Python forbids dynamic attributes
- Assuming dynamic attributes always cause errors
- Overestimating performance impact
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