def _stringify_na_values(na_values):
 result = []
 for x in na_values:
  result.append(str(x))
  result.append(x)
  try:
   v = float(x)
   if (v == int(v)):
    v = int(v)
    result.append(('%s.0' % v))
    result.append(str(v))
   result.append(v)
  except:
   pass
  try:
   result.append(int(x))
  except:
   pass
 return set(result)

def _stringify_na_values ( na_values ) : result = [ ] for x in na_values : result . append ( str ( x ) ) result . append ( x ) try : v = float ( x ) if ( v == int ( v ) ) : v = int ( v ) result . append ( ( '%s.0' % v ) ) result . append ( str ( v ) ) result . append ( v ) except : pass try : result . append ( int ( x ) ) except : pass return set ( result )
return a stringified and numeric for these values .