Evolve an algorithm class based on a benchmark Args: algorithm_class: Initial algorithm class to evolve benchmark: Function that takes an instance and returns metrics iterations: Number of evolution iterations **kwargs: Additional arguments for run_evolution
(
algorithm_class: type, benchmark: Callable, iterations: int = 100, **kwargs
)
| 434 | |
| 435 | |
| 436 | def evolve_algorithm( |
| 437 | algorithm_class: type, benchmark: Callable, iterations: int = 100, **kwargs |
| 438 | ) -> EvolutionResult: |
| 439 | """ |
| 440 | Evolve an algorithm class based on a benchmark |
| 441 | |
| 442 | Args: |
| 443 | algorithm_class: Initial algorithm class to evolve |
| 444 | benchmark: Function that takes an instance and returns metrics |
| 445 | iterations: Number of evolution iterations |
| 446 | **kwargs: Additional arguments for run_evolution |
| 447 | |
| 448 | Returns: |
| 449 | EvolutionResult with optimized algorithm |
| 450 | |
| 451 | Example: |
| 452 | class SortAlgorithm: |
| 453 | def sort(self, arr): |
| 454 | # Simple bubble sort |
| 455 | return sorted(arr) # placeholder |
| 456 | |
| 457 | def benchmark_sort(instance): |
| 458 | import time |
| 459 | test_data = [list(range(100, 0, -1))] # Reverse sorted |
| 460 | |
| 461 | start = time.time() |
| 462 | for data in test_data: |
| 463 | result = instance.sort(data.copy()) |
| 464 | if result != sorted(data): |
| 465 | return {"score": 0.0} |
| 466 | |
| 467 | duration = time.time() - start |
| 468 | return { |
| 469 | "score": 1.0, |
| 470 | "runtime": duration, |
| 471 | "performance": 1.0 / (duration + 0.001) |
| 472 | } |
| 473 | |
| 474 | result = evolve_algorithm(SortAlgorithm, benchmark_sort, iterations=50) |
| 475 | """ |
| 476 | |
| 477 | # Get class source code |
| 478 | class_source = inspect.getsource(algorithm_class) |
| 479 | |
| 480 | # Ensure the class has evolution markers |
| 481 | if "EVOLVE-BLOCK-START" not in class_source: |
| 482 | lines = class_source.split("\n") |
| 483 | # Find class definition |
| 484 | class_def_line = next( |
| 485 | i for i, line in enumerate(lines) if line.strip().startswith("class ") |
| 486 | ) |
| 487 | |
| 488 | # Add evolution markers around the class body |
| 489 | indent = len(lines[class_def_line]) - len(lines[class_def_line].lstrip()) |
| 490 | lines.insert(class_def_line + 1, " " * (indent + 4) + "# EVOLVE-BLOCK-START") |
| 491 | lines.append(" " * (indent + 4) + "# EVOLVE-BLOCK-END") |
| 492 | class_source = "\n".join(lines) |
| 493 |