povtornyy-ekzamen-graf-s-refleksiey-i-do/SOLUTION.md

What was implemented
The original project used a special reflect node to retry answer generation.
In this version the retry logic is replaced by a plain try/except loop inside
get_answer_with_retry. The function now attempts to call a generator up to max_retries times, sleeping a short back‑off between attempts, and raises a GenerationError only after all attempts fail.

Why the main parts satisfy the assignment

• The retry mechanism is implemented without any external node – it is a self‑contained loop that catches any exception from the generator and retries.
• The number of attempts and back‑off are configurable, matching the behaviour that the original reflect node provided.
• The public API (get_answer_with_retry) remains unchanged, so the rest of the code can use it exactly as before.

Key code excerpts

src/index.py – retry loop

while attempt < max_retries:
    try:
        answer = generator()
        return answer
    except Exception as exc:
        attempt += 1
        if attempt >= max_retries:
            raise GenerationError(
                f"Answer generation failed after {max_retries} attempts"
            ) from exc
        wait_time = backoff_factor * attempt
        time.sleep(wait_time)

src/index.py – simulated generator

def _simulate_answer_generation() -> str:
    if random.random() < 0.3:
        raise RuntimeError("Simulated generation failure")
    time.sleep(0.1)
    return "Generated answer content"

src/index.py – entry point

def main() -> None:
    try:
        answer = get_answer_with_retry()
        print("Answer generated successfully:")
        print(answer)
    except GenerationError as err:
        print(f"Error: {err}")

Limitations

• The generator is a simple simulation; in a real system it would be replaced by the actual answer‑generation logic.
• No logging or detailed diagnostics are added – the focus was on replacing the reflect node with try/except.
• The back‑off is linear; exponential back‑off could be added if needed.

Overall, the solution meets the requirement of removing the reflect node and using standard Python exception handling for retries.