<div class = "parent-div">
    <div class = "child-1">
        <div class = "child-1.1">
        </div>
    </div>
    <div class = "child-2">
        <div class = "child-2.1">
        </div>
    </div>
</div>

[div class = "child-1">
        <div class = "child-1.1">
        </div>
    </div>,<div class = "child-2">
        <div class = "child-2.1">
        </div>
    </div>]

page_soup = soup(page_html,"html.parser")
main_cont = page_soup.find('div',{'class':'parent-div'}).findAll('div')

[<div class = "child-1">
        <div class = "child-1.1">
        </div>
    </div>,<div class = "child-1.1">
        </div>,<div class = "child-2">
        <div class = "child-2.1">
        </div>
    </div>,<div class = "child-2.1">
        </div>]