Python & CGI. HELP please...

[Enrico Morelli]

Dear all,

I'm trying to write a script to be able to download/upload files
through web pages.
The upload script works fine but the download no.
When I download a file (pdf for example) using this script, I'm unable
to open it in local using acroread because at the end of the document I
found some html rows :-||
These rows are some html code inside of the script that I use to
display errors.

Follow the method that I use to download files:

def download(self, fullname, file):
                print "Content-Type: application/download"
                print "Content-Disposition: attachment; filename=%s\n" % file
                try:
                        f=open(fullname, "rb")
                        l=f.read()
                        sys.stdout.write(l)
                        f.close()
                        sys.exit()
                except:
                        msg="An error occurred during file transfer."
                        Display(msg, "")
                        sys.exit()

Can someone help me??
Thanks a lot
Enrico