#16357: FiniteStateMachine.default_format_transition_label: accept iterable
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   Reporter:  cheuberg       |            Owner:
       Type:  defect         |           Status:  new
   Priority:  minor          |        Milestone:  sage-6.3
  Component:  combinatorics  |         Keywords:  finite_state_machine
  Merged in:                 |          Authors:  Clemens Heuberger
  Reviewers:                 |  Report Upstream:  N/A
Work issues:                 |           Branch:
     Commit:                 |     Dependencies:
   Stopgaps:                 |
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 Current inconsistent behaviour:
 {{{
 sage: T = Transducer()
 sage: T.default_format_transition_label([])
 '\\varepsilon'
 sage: T.default_format_transition_label(iter([]))
 ''
 sage: T.format_transition_label_reversed([])
 ''
 }}}

 Change code such that {{{\varepsilon}}} is returned in all three
 instances.

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Ticket URL: <http://trac.sagemath.org/ticket/16357>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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