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Nov 29th, 2013
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  1. >>> def j(k, f=[]):
  2. ... f.append(k)
  3. ... return f
  4. ...
  5. >>> j(1)
  6. [1]
  7. >>> j(1)
  8. [1, 1]
  9. >>> j(1)
  10. [1, 1, 1]
  11. >>>
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