BIND 10 #1103: catching import error in python libs

[BIND 10 Development]

#1103: catching import error in python libs
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            Reporter:  jelte         |                        Owner:
                Type:  defect        |                       Status:  new
            Priority:  major         |                    Milestone:  New
           Component:  Unclassified  |  Tasks
           Sensitive:  0             |                     Keywords:
         Sub-Project:  DNS           |              Defect Severity:  N/A
Estimated Difficulty:  0             |  Feature Depending on Ticket:
         Total Hours:  0             |          Add Hours to Ticket:  0
                                     |                    Internal?:  0
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 In some of the libraries, import errors (mainly for pydnspp, but also for
 a few others) are caught, at which point an error is printed. While
 converting to the new logging system we encountered a problem (see the
 comments in #763); the logging system is most likely not initialized

 More generally, we shouldn't just log an error, as this is a fatal problem
 (it'll crash the moment it needs said library anyway), so we should let it
 fail immediately anyway.

 src/lib/python/isc/notify/notify_out.py has a comment here now, but the
 rest of the libraries need to be checked as well.

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Ticket URL: <http://bind10.isc.org/ticket/1103>
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