title: Indent and comments in function in Python
body: <p>I am using Python 2.7 and wrote the following:</p>
  
  <pre>
  def arithmetic(A):
      x=1
  """
  Some comments here
  """  
      if x=1:
          x=1
      elif x=2:
          x=2
      return 0
  </pre>
  
  <p>But it has the indentation issue:</p>
  
  <pre>
      if x=1:
      ^
  IndentationError: unexpected indent
  </pre>
  
  <p>So how to write comments in the function?  </p>