add randfile

from ._module_docstr import ModuleHeader

from ._io import remove_dir, remove_files

from .tempfile import randfile

import secrets

import string

def randfile(digits=20, ext=".fits"):

    """

    Parameters

    ----------

    digits

    ext

    Returns

    -------

    Examples

    --------

    >>> fname = randfile(20)

    >>> print(fname)

    """

    # 生成包含大小写字母和数字的字符集

    characters = string.ascii_letters + string.digits

    # 使用secrets模块生成指定长度的随机字符串

    random_string = ''.join(secrets.choice(characters) for _ in range(digits)) + ext

    return random_string