Question: For example, I want to download this page after inserting username and password:

```
http://forum.ubuntu-it.org/

```

I have tryed with wget but doesn't work.

Is there a solution with python ?

You can test with these username and password:

```
username: johnconnor
password: hellohello

```

Answer: 
Like @robert says, use mechanize. 

To get you started:

```
from mechanize import Browser
b = Browser()
b.open("http://forum.ubuntu-it.org/index.php")
b.select_form(nr=0)
b["user"] = "johnconnor"
b["passwrd"] = "hellohello"
b.submit()

response = b.response().read()
if "Salve <b>johnconnor</b>" in response:
    print "Logged in!"

```
Try the [mechanize](http://wwwsearch.sourceforge.net/mechanize/) module. It's basically a programmatic browser interface.