code: def main():
      if len(sys.argv) > 1:
          site = sys.argv[1]
      else:
          site = input("Enter site to crawl: ")
      distributedSpider = DistributedSpider(site)
      distributedSpider.run()
  
file_path: ipyparallel/docs/source/examples/fetchparse.py
imports: import sys
  import time
  import bs4
  import ipyparallel
label_desc: Use image node_id 2 for calling a global function with example usage: main() without return types