code: def get_html():
      logger.info("Getting S&P 500 Component Stocks from Wikipedia")
      ret = lxml.html.parse(
          "http://en.wikipedia.org/wiki/List_of_S%26P_500_companies"
      )
      return ret
  
imports: import sys
  import pyalgotrade.logger
  import lxml.html
  import symbolsxml
label_desc: Use image node_id 1 for calling a global function with example usage: get_html() and returns: ret