Python CGI脚本未在本地目录中打开html文件

Question

I have a simple python module that generates a web page containing a list of links. This page is automatically opened in a browser through webbrowser.open('file://' + file.name) : no problems here.
From this web page, when clicking on on a link (which has a href like http://localhost/cgi-bin/script.py?param1=Something ) it lunches a cgi script that performs some operations with the passed value and at the end generates a new web page, stored locally in my machine (eg in a path like /home/user/web/out/ ) in a folder where I correctly set all rwx permissions.
Well, I've been trying to automatically open this new page in the browser for two days now, attempting with all the solutions I found searching through documentations and forums. I tried with webbrowser.open() again, but then I realized that I can't use it because from the web server I can't open a new browser window itself. Then I tried with redirection, printing first a header ( print "Content-type: text/html\\n\\n" ) and then

print "Status: 302 Moved"
print "Location: file:///home/user/web/out/abc.html\n\n"`

but this just shows a plain blank page. I gave a try to other redirecting solutions, like

print "<meta http-equiv='refresh' content='0' url='file:///home/user/web/out/abc.html'>"
print "<script type="text/javascript">location.href='file:///home/user/web/out/abc.html';</script>"
print "<script type="text/javascript">windows.open('file:///home/user/web/out/abc.html');</script>"

I even tried inserting a Button with a POST method that triggers the opening of the new page, without success: I keep getting a plain blank page.
It is worth to say that, if I manually open this abc.html page in the browser, it is properly shown.

I think this has to do with the fact that the html page I'm opening from the web server is in locally stored, but I don't know how to solve this. Can somebody point me to the right direction?

Answer 1

A CGI-Script can not redirect I remember.

Note that status code 200 is sent prior to execution of a CGI script, so
scripts cannot send other status codes such as 302 (redirect).

This is some code:

self.send_response(200, "Script output follows")

module: http.server (Python 3)

But you can just open the file and use sys.stdout.write or shutil to copy its content to stdout.