Pythonコードセットpathlibアプリケーションを使用して、指定されたディレクトリ内のすべてのファイルを取得する方法

from pathlib import Path

def get_all_files(root_dir,recursive=True,suffix_tuple=()):
    all_files=[]
    if Path(root_dir).exists():
        if Path(root_dir).is_dir():
            if recursive:
                for elem in Path(root_dir).glob("**/*"):
                    if Path(elem).is_file():
                        suffix=Path(elem).suffix
                        if not suffix_tuple:
                            all_files.append(elem)
                        else:
                            if suffix in suffix_tuple:
                                all_files.append(elem)
            else:
                for elem in Path(root_dir).iterdir():
                    if Path(elem).is_file():
                        suffix=Path(elem).suffix
                        if not suffix_tuple:
                            all_files.append(elem)
                        else:
                            if suffix in suffix_tuple:
                                all_files.append(elem)
        else:
            all_files.append(root_dir)
    return all_files

if __name__=="__main__":
    path="D:/gitee/oepkgs/mugen/testcases/cli-test/acl/oe_test_acl_defaulr_rule.sh"
    for elem in get_all_files(path):
        print(elem)
    print("-------------------------------------------------")
    path = "D:/gitee/oepkgs/mugen/testcases/cli-test/acl"
    for elem in get_all_files(path):
        print(elem)
    print("-------------------------------------------------")
    path = "D:/gitee/oepkgs/mugen/testcases/cli-test/acl"
    for elem in get_all_files(path,False):
        print(elem)
    print("-------------------------------------------------")
    path = "D:/gitee/oepkgs/mugen/testcases/cli-test/acl"
    for elem in get_all_files(path, True,(".sh",)):
        print(elem)
    print("-------------------------------------------------")
    path = "D:/gitee/oepkgs/mugen/testcases/cli-test/acl"
    for elem in get_all_files(path, True, (".json",)):
        print(elem)