cgi, classes and their instances

[Denis S. Otkidach]

On Tue, 13 Jul 2004, Klaus Neuner wrote:

KN> code (1) works, code (2) doesn't.

Are you using POST method?  In this case data come from stdin,
which can be read only once, so the second call to constructor
recieves nothing.

KN> (1)
KN> data = cgi.FieldStorage()
KN> comment = data.getvalue("comment")
KN> user_name = data.getvalue("user_name")
KN>
KN> (2)
KN> data = cgi.FieldStorage()
KN> comment = cgi.FieldStorage().getvalue("comment")
KN> user_name = cgi.FieldStorage().getvalue("user_name")

BTW, I'd suggest using getfirst/getlist methods of FieldStorage,
since their behavior is the same independent on form content.
Thus you need less code to check.

-- 
Denis S. Otkidach
http://www.python.ru/      [ru]