D25532: Port extractxml to Python 3 with minor typo fixes

[Yuri Chornoivan]

yurchor added a dependency: D25405: Fix Step infobrowser and examples localization.

REPOSITORY
  R341 Step

REVISION DETAIL
  https://phabricator.kde.org/D25532

To: yurchor, #localization
Cc: kde-edu, narvaez, apol
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.kde.org/pipermail/kde-edu/attachments/20191125/a12eecbe/attachment.html>