title: Python error "IndentationError: expected an indented block"
body: <p>This is my program and I am getting the following mentioned error:</p>
  
  <pre><code>def main():
      print "hello"
  
  if __name__=='__main__':
  main()
  </code></pre>
  
  <h3>Error</h3>
  
  <pre><code>  File "hello.py", line 8
      main()
      ^
  IndentationError: expected an indented block
  </code></pre>