tmp

def get_all_files(folder, files=[]):
    all_content = [os.path.join(folder, i) for i in os.listdir(folder)]

    # list files in current folder
    files += [i for i in all_content if os.path.isfile(i)]

    subfolders = [i for i in all_content if os.path.isdir(i)]

    for f in subfolders:
        get_all_files(f)

    return files

all_files = get_all_files(r"E:\Photos")

for f in all_files:
    print(f)