[MacPorts] #59001: py27-cryptography fails to upgrade

[MacPorts]

#59001: py27-cryptography fails to upgrade
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  Reporter:  schnide          |      Owner:  stromnov
      Type:  defect           |     Status:  assigned
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.5.4
Resolution:                   |   Keywords:
      Port:  py-cryptography  |
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Comment (by michael-j-oconnor):

 I'm having the same issue -- same failure, similar-looking main.log (see
 attached).
 How did you get the package upgraded?

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Ticket URL: <https://trac.macports.org/ticket/59001#comment:5>
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