Are there any change aroud character encoding settings?

Are there any change aroud character encoding settings?


The other day, I add Japanese Character entries to my form
by using attached Python script, and it succeed.

But I tried same thing today
and the Japanes charactors are broken,
it transformed to question marks like "????".

I tried also tried get method from Python
but it failded.

I tried get method add api from Firefox 3 Location bar
and it succeed.

Why the characters were broken?
The number of characters equals to the number of question marks,
so I think the query strings are recognized as UTF-8 string.

How can  I add Japanes entries to my application?