title: Why is this code not downloading the data in real time?
body: <p>I have a problem which I don't know how to solve (I'm a beginner in coding). This program is supposed to scrape stock price data from yahoo finance:</p>
  <pre><code>import bs4
  from bs4 import BeautifulSoup
  import requests
  import pandas as pd
  import datetime as dt
  
  def real_time_price(stock_code):
     url = 'https://finance.yahoo.com/quote/' + stock_code + '/'
     r = requests.get(url)
  
     web_content = BeautifulSoup(r.text, 'lxml')
     web_content = web_content.find('div', {'class':'My(6px) Pos(r) smartphone_Mt(6px)'})
     web_content = web_content.find('span').text
  
     if web_content==[]:
         web_content = '999999'
  
     return web_content
  
  LA = ['AAPL', 'FB', 'F', 'AMZN', 'GOOG']
  
  for step in range(1,101):
      price = []
      col = []#Lista, która dodaje dane do df
      time_stamp = dt.datetime.now()
      time_stamp = time_stamp.strftime('%Y-%m-%d %H:%M:%S')
      for stock_code in LA:
          price.append(real_time_price(stock_code))
      col = [time_stamp]
      col.extend(price)
      df = pd.DataFrame(col)
      df = df.T
      df.to_csv('realtimestockdata.csv', mode = 'a', header = False)
      print(col)
  </code></pre>
  <p>But it seems that it does not update when it's running is there some syntactic error in that that I missed?</p>
  <p>All responses are really appriciated, thank you.</p>