Web Scraping Python (BeautifulSoup,Requests)

I am learning web scraping using python but I can't get the desired result. Below is my code and the output

code

import bs4,requests
url = "https://twitter.com/24x7chess"
r = requests.get(url)
soup = bs4.BeautifulSoup(r.text,"html.parser")
soup.find_all("span",{"class":"account-group-inner"})
[]

Here is what I was trying to scrape

http://ift.tt/2yxNOji

I keep on getting an empty array. Please Help.