This bug was fixed in the package liblouis - 2.0.0-1ubuntu1
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liblouis (2.0.0-1ubuntu1) maverick; urgency=low
* Merge from debian unstable(LP: #611959). Remaining changes:
- support python 2.7 by unused import removal
liblouis (2.0.0-1) unstable; urgency=low
* New
** Patch added: debian ubuntu diff
http://launchpadlibrarian.net/52768889/liblouis.diff
** Changed in: liblouis (Ubuntu)
Status: New = Confirmed
** Branch linked: lp:ubuntu/liblouis
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Please merge liblouis 2.0.0-1(main) from debian unstable(main)