問題：
Scenario: An interactive CLI Python program, that is in need for a password. 場景：一個交互式CLI Python程序，需要密碼。 That means also, there's no GUI solution possible. 這也意味着不可能有GUI解決方案。
In bash I could get a password read in without re-prompting it on screen via 在bash中，我可以讀取密碼而無需通過以下方式在屏幕上重新提示
read -s
Is there something similar for Python? Python有類似的東西嗎？ Ie, 即
password = raw_input('Password: ', dont_print_statement_back_to_screen)
Alternative: Replace the typed characters with '*' before sending them back to screen (aka browser' style). 替代方法：將鍵入的字符替換爲“ *”，然後再將其發送回屏幕（又稱瀏覽器樣式）。
解決方案：
參考一： https://en.stackoom.com/question/7OJE參考二： https://stackoom.com/question/7OJE