title: Unexpected Indent error in Python
body: <p>I have a simple piece of code that I'm not understanding where my error is coming from. The parser is barking at me with an Unexpected Indent on line 5 (the if statement). Does anyone see the problem here? I don't.</p>
  
  <pre><code>def gen_fibs():
      a, b = 0, 1
      while True:
          a, b = b, a + b
          if len(str(a)) == 1000:
              return a
  </code></pre>