old_contents: import sys
  from bs4 import BeautifulSoup
  
  f1 = sys.argv[1]
  f2 = sys.argv[2]
  
  s1 = open(f1).read()
  s2 = open(f2).read()
  
  soup1 = BeautifulSoup(s1, 'html.parser')
  soup2 = BeautifulSoup(s2, 'html.parser')
  
  s1 = soup1.prettify()
  s2 = soup2.prettify()
  
  s1 = s1.replace(' ', '').replace('\t', '').replace('\n', '').replace('\r', '')
  s2 = s2.replace(' ', '').replace('\t', '').replace('\n', '').replace('\r', '')
  
  if s1 != s2:
      sys.stderr.write("%s and %s differ\n" % (f1,f2))
  else:
      print("%s and %s same" % (f1, f2))
  
new_contents: import sys
  from bs4 import BeautifulSoup
  
  f1 = sys.argv[1]
  f2 = sys.argv[2]
  
  s1 = open(f1).read()
  s2 = open(f2).read()
  
  soup1 = BeautifulSoup(s1, 'html.parser')
  soup2 = BeautifulSoup(s2, 'html.parser')
  
  s1 = soup1.prettify()
  s2 = soup2.prettify()
  
  if s1 != s2:
      sys.stderr.write("%s and %s differ\n" % (f1,f2))
  else:
      print("%s and %s same" % (f1, f2))
  
subject: update notes