如何显示输入的数量而不显示用户的输入？

<input type="password" id="passwordInput">
<span id="hiddenCount"></span>

<script>
    const passwordInput = document.getElementById('passwordInput');
    const hiddenCount = document.getElementById('hiddenCount');

    passwordInput.addEventListener('input', function () {
        const inputLength = passwordInput.value.length;
        hiddenCount.textContent = '*'.repeat(inputLength);
    });
</script>

user_input = input('请输入密码：')
hidden_count = '*' * len(user_input)
print(hidden_count)