Fill and submit html form

Aside from Mechanize and Selenium David has mentioned, it can also be achieved with Requests and BeautifulSoup.

To be more clear, use Requests to send request to and retrieve responses from server, and use BeautifulSoup to parse the response html to know what parameters to send to the server.

Here is an example script I wrote that uses both Requests and BeautifulSoup to submit username and password to login to wikipedia:

import requests
from bs4 import BeautifulSoup as bs


def get_login_token(raw_resp):
    soup = bs(raw_resp.text, 'lxml')
    token = [n['value'] for n in soup.find_all('input')
             if n['name'] == 'wpLoginToken']
    return token[0]

payload = {
    'wpName': 'my_username',
    'wpPassword': 'my_password',
    'wpLoginAttempt': 'Log in',
    #'wpLoginToken': '',
    }

with requests.session() as s:
    resp = s.get('http://en.wikipedia.org/w/index.php?title=Special:UserLogin')
    payload['wpLoginToken'] = get_login_token(resp)

    response_post = s.post('http://en.wikipedia.org/w/index.php?title=Special:UserLogin&action=submitlogin&type=login',
                           data=payload)
    response = s.get('http://en.wikipedia.org/wiki/Special:Watchlist')

Update:

For your specific case, here is the working code:

import requests
from bs4 import BeautifulSoup as bs


def get_session_id(raw_resp):
    soup = bs(raw_resp.text, 'lxml')
    token = soup.find_all('input', {'name':'survey_session_id'})[0]['value']
    return token

payload = {
    'f213054909': 'o213118718',  # 21st checkbox
    'f213054910': 'Ronald',  # first input-field
    'f213054911': 'ronaldG54@gmail.com',
    }

url = r'https://app.e2ma.net/app2/survey/39047/