Return a single string with the content of all files inside a folder. For each file, it indicates the filename and its content. for now, ignore single-line comments. Very useful to ask to ChatGPT for instance about what is wrong with your code

one_single_file.py

from pathlib import Path, PurePath
from typing import List, Optional

def stringify_file(filename: str) -> str:
    single_file = ""
    with open(filename, encoding="utf-8") as file:
        for line in file:
            stripped = line.strip()
            if stripped:
                code_part = line.split('#')[0]
                single_file += code_part
    return single_file


def single_str_for_python_files(
    directory: PurePath = Path.cwd(),
    exclude_dirs: Optional[List[PurePath]] = None,
    exclude_files: Optional[List[Path]] = None
) -> str:
    result = ""
    base_path = Path(directory).resolve()
    exclude_dirs = {base_path / ex_dir for ex_dir in (exclude_dirs or [])}
    exclude_files = {Path(f).resolve() for f in (exclude_files or [])}

    for filename in base_path.rglob("*.py"):
        if filename.name == "__init__.py":
            continue
        if filename.resolve() in exclude_files:
            continue
        if any(parent in exclude_dirs for parent in filename.parents):
            continue

        rel_path = filename.relative_to(base_path)
        result += f"\n--{rel_path}--\n"
        result += stringify_file(str(filename))
    return result


# example usage
if __name__ == "__main__":
    current_file = Path(__file__).resolve()
    excluded_dirs = [Path(".venv"), Path(".venvironment"), Path("tests")]
    excluded_files = [current_file, Path("core/logger.py")]

    print(single_str_for_python_files(
        Path("."),
        exclude_dirs=excluded_dirs,
        exclude_files=excluded_files
    ))