_getpass.py 文件源码

def getpass(self, prompt='Password : ', stream=None):
        """Prompt for password with echo off, using Unix getch()."""
        password = ""
        sys.stdout.write(prompt)
        while True:
            c = _win_getch() if os.name == 'nt' else self._unix_getch()
            if c == '\r' or c == '\n':
                break
            if c == '\003':
                raise KeyboardInterrupt
            if c == '\b':
                c = ''
            password += c
            sys.stdout.write("*")

        return password