BIND 10 #2048: configure check for pyexpat

[BIND 10 Development]

#2048: configure check for pyexpat
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                   Reporter:  jreed  |                 Owner:  UnAssigned
                       Type:  task   |                Status:  new
                   Priority:  low    |             Milestone:  New Tasks
                  Component:  build  |            Resolution:
  system                             |             Sensitive:  0
                   Keywords:         |           Sub-Project:  Core
            Defect Severity:  N/A    |  Estimated Difficulty:  2
Feature Depending on Ticket:         |           Total Hours:  0
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Comment (by jreed):

 {{{
  File "/usr/pkg/lib/python3.1/xml/etree/ElementTree.py", line 1106, in
 __init__     "No module named expat; use SimpleXMLTreeBuilder instead"
 }}}
 Can we use the alternative? It doesn't matter to me; I am just curious.

 The problem hit me on a different system. I quickly fixed by installing
 py31-expat package.

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Ticket URL: <http://bind10.isc.org/ticket/2048#comment:4>
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