from random import randint

__all__ = ["rand_str"]

__StrBase = "qwertyuioplkjhgfdsazxcvbnm1234567890ZXCVBNMLKJHGFDSAQWERTYUIOP"
__StrBaseLen = len(__StrBase) - 1


def rand_str(size: "int" = 8) -> "str":
    return "".join([__StrBase[randint(0, __StrBaseLen)] for _ in range(size)])