old_contents: import sys
  import random
  
  def gen_one_record(num_feas):
      feas = []
      target = random.random()
      for i in xrange(random.randint(6, num_feas)):
          id = random.randint(0, 300)
          feas.append("%d" % id)
      return " ".join(feas)
      
  
  def gen_data(num):
      for i in xrange(num):
          line = gen_one_record(15)
          print line
  
  if __name__ == '__main__':
      gen_data(1000)
  
new_contents: import sys
  import random
  
  def gen_one_record(num_feas):
      feas = []
      target = random.random()
      for i in xrange(random.randint(6, num_feas)):
          id = random.randint(0, 300)
          feas.append("%d" % id)
      return " ".join(feas)
      
  
  def gen_data(num):
      for i in xrange(num):
          line = gen_one_record(15)
          print line
  
  if __name__ == '__main__':
      gen_data(10000)
  
subject: add word2vec test script