BeautifulSoup - How to get all text between two different tags?

I would like to get all text between two tags:

<div class="lead">I DONT WANT this</div>

#many different tags - p, table, h2 including text that I want

<div class="image">...</div>

I started this way:

url = "http://......."
req = urllib.request.Request(url)
source = urllib.request.urlopen(req)
soup = BeautifulSoup(source, 'lxml')

start = soup.find('div', {'class': 'lead'})
end = soup.find('div', {'class': 'image'})

And I have no idea what to do next