When you say the page has multiple forms, do you mean there are multiple
elements on the page, or multiple form fields (like
)?
The Mechanize docs for python sketch out how to select list items. Here's the sample they provide:
# Controls that represent lists (checkbox, select and radio lists) are
# ListControl instances. Their values are sequences of list item names.
# They come in two flavours: single- and multiple-selection:
form["favorite_cheese"] = ["brie"] # single
In your case, the code to select Value1
would look like this:
form["FORM1"] = ["Value1"]