code: def set_input(self, data):
          
  
          for (name, value) in data.items():
              i = self.form.find("input", {"name": name})
              if not i:
                  raise InvalidFormMethod("No input field named " + name)
              i["value"] = value
docs: Fill-in a set of fields in a form.
  
          Example: filling-in a login/password form
  
          .. code-block:: python
  
             form.set_input({"login": username, "password": password})
  
          This will find the input element named "login" and give it the
          value ``username``, and the input element named "password" and
          give it the value ``password``.