Flask /否JS：可以在没有JavaScript的情况下制作动态下拉表单应用程序吗？ （仅python和HTML）

Question

Update: I don't want to use JS to generate forms or navigate through them

I need to create an application that generates a drop down menu with items obtained from a list of folders in the local host and then generates another drop down menu based on that. Then, based on the second selection it needs to either present a list of scripts or another list of folder after which some other scripts will be available.

When the final script is selected two more fields should show up in which the user should enter and select two more values.

With all these values then a command on the local host will be executed - the values will be passed as parameters.

Can this be done without JS?

I have enough Python/Flask and HTML skills to do this in a reasonable amount of time, but I don't have the necessary JS skills or the time to learn JS. Some pointers would be great :)

Thank you

Answer 1

Flask executes on the server side and cannot be used to gather directory information about the local host. You need JavaScript, and even there there is not a standard interface that will work across all browsers.

See SO answers here: Local file access with javascript

and MDN documentation for Firefox here: https://developer.mozilla.org/en-US/docs/Web/API/File_and_Directory_Entries_API

and a more recent SO question with less browser-specific solutions among the answers here: Select directory path in javascript