title: Sets are sorted from 0-9 every single time in python?! Not unordered
body: <p>I thought it was a coincidence at first so I wrote up a test to try it out and it's true, I ran it 1 million times and every single time the set came back ordered and sorted. This only occurs when you use integers from 0-9 as soon as an integer > 9 is inserted then any integers inserted after will not be sorted. Why is this? Also for floats it kind of sorts it but isn't right all the time, so weird I thought they were completely unordered. Any advice on why 0-9 is sorted every time would be greatly appreciated, I didn't believe it at first either so here's the code I used you can easily run it yourself and see it's true.</p>
  
  <pre><code>import random
  
  def check_set():
      constructing = True
      s = set()
      while constructing:
          x = random.randint(0, 9)
          if x not in s: s.add(x)
          if len(s) == 10: constructing = False
      return s
  def main():
      for x in range(10000):
          l = list(check_set())
          if l != [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]:
              print('wow')
  if __name__ == '__main__':
      main()
  </code></pre>