print(f"Old asyncio: old_time:.3fs") print(f"New asyncio: new_time:.3fs") print(f"Speedup: (old_time/new_time - 1)*100:.1f%") 4. Enhanced pathlib.Path Methods Path operations become more intuitive with new methods.
# Create test structure (root / "subdir1").mkdir() (root / "subdir2").mkdir() (root / "subdir1" / "file1.txt").write_text("content1") (root / "subdir2" / "file2.py").write_text("print('hello')") # New walk() yields (dir_path, dir_names, file_names) for dir_path, dir_names, file_names in root.walk(): print(f"Directory: dir_path.name") print(f" Subdirs: dir_names") print(f" Files: file_names") # New match() with better pattern support py_files = [p for p in root.rglob("*.py")] print(f"Python files: py_files") New Path.copy() and Path.move() methods def demonstrate_copy_move(): with tempfile.TemporaryDirectory() as tmpdir: src = Path(tmpdir) / "source.txt" dst = Path(tmpdir) / "dest.txt" python 3.13 changes
def __init__(self, x, y): self.x = x self.y = y def dict_performance(): data = i: f"value_i" for i in range(10000) print(f"Old asyncio: old_time: