Subject: Unknown Horizons 2019.1 fails to start

From: Luis Felipe <[email-masked]>
Date: Sat, 09 Apr 2022 13:21:00 +0000

SYSTEM INFORMATION

Generation 54	Mar 24 2022 11:42:45	(current)
  guix ab98b51
    repository URL: https://git.savannah.gnu.org/git/guix.git
    branch: master
    commit: ab98b51ef1304e975da127e3092d01dcc7f02657

unknown-horizons 2019.1

STEPS TO REPRODUCE

1. guix shell unknown-horizons -- unknown-horizon

EXPECTED RESULT

The game starts.

UNEXPECTED RESULT

The game fails to start with the following error:

guix shell unknown-horizons -- unknown-horizons
/gnu/store/cyrgvpvh6wi15m4ffcdn3s55jypp8yqk-fifengine-0.4.2/lib/python3.9/site-packages/fife/extensions/pychan/widgets/widget.py:1038: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if len(margin) is 4:
/gnu/store/cyrgvpvh6wi15m4ffcdn3s55jypp8yqk-fifengine-0.4.2/lib/python3.9/site-packages/fife/extensions/pychan/widgets/widget.py:1044: SyntaxWarning: "is" with a literal. Did you mean "=="?
  elif len(margin) is 3:
/gnu/store/cyrgvpvh6wi15m4ffcdn3s55jypp8yqk-fifengine-0.4.2/lib/python3.9/site-packages/fife/extensions/pychan/widgets/widget.py:1050: SyntaxWarning: "is" with a literal. Did you mean "=="?
  elif len(margin) is 2:
/gnu/store/cyrgvpvh6wi15m4ffcdn3s55jypp8yqk-fifengine-0.4.2/lib/python3.9/site-packages/fife/extensions/pychan/widgets/widget.py:1056: SyntaxWarning: "is" with a literal. Did you mean "=="?
  elif len(margin) is 1:
/gnu/store/cyrgvpvh6wi15m4ffcdn3s55jypp8yqk-fifengine-0.4.2/lib/python3.9/site-packages/fife/extensions/pychan/widgets/widget.py:1068: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if len(padding) is 4:
/gnu/store/cyrgvpvh6wi15m4ffcdn3s55jypp8yqk-fifengine-0.4.2/lib/python3.9/site-packages/fife/extensions/pychan/widgets/widget.py:1074: SyntaxWarning: "is" with a literal. Did you mean "=="?
  elif len(padding) is 3:
/gnu/store/cyrgvpvh6wi15m4ffcdn3s55jypp8yqk-fifengine-0.4.2/lib/python3.9/site-packages/fife/extensions/pychan/widgets/widget.py:1080: SyntaxWarning: "is" with a literal. Did you mean "=="?
  elif len(padding) is 2:
/gnu/store/cyrgvpvh6wi15m4ffcdn3s55jypp8yqk-fifengine-0.4.2/lib/python3.9/site-packages/fife/extensions/pychan/widgets/widget.py:1086: SyntaxWarning: "is" with a literal. Did you mean "=="?
  elif len(padding) is 1:
/gnu/store/cyrgvpvh6wi15m4ffcdn3s55jypp8yqk-fifengine-0.4.2/lib/python3.9/site-packages/fife/extensions/pychan/widgets/animationicon.py:193: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  if anim is not "":
/gnu/store/cyrgvpvh6wi15m4ffcdn3s55jypp8yqk-fifengine-0.4.2/lib/python3.9/site-packages/fife/extensions/pychan/widgets/curvegraph.py:164: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if coordinates is None or len(coordinates) is 0:
/gnu/store/cyrgvpvh6wi15m4ffcdn3s55jypp8yqk-fifengine-0.4.2/lib/python3.9/site-packages/fife/extensions/pychan/widgets/linegraph.py:157: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if coordinates is None or len(coordinates) is 0:
/gnu/store/cyrgvpvh6wi15m4ffcdn3s55jypp8yqk-fifengine-0.4.2/lib/python3.9/site-packages/fife/extensions/pychan/widgets/pointgraph.py:157: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if coordinates is None or len(coordinates) is 0:
Traceback (most recent call last):
  File "/gnu/store/5kah2sx0bzp77l3fjbg4mx0y7a2w3wkb-unknown-horizons-2019.1/bin/.unknown-horizons-real", line 381, in <module>
    main()
  File "/gnu/store/5kah2sx0bzp77l3fjbg4mx0y7a2w3wkb-unknown-horizons-2019.1/bin/.unknown-horizons-real", line 122, in main
    ret = horizons.main.start(options)
  File "/gnu/store/5kah2sx0bzp77l3fjbg4mx0y7a2w3wkb-unknown-horizons-2019.1/lib/python3.9/site-packages/horizons/main.py", line 113, in start
    horizons.globals.fife = Fife()
  File "/gnu/store/5kah2sx0bzp77l3fjbg4mx0y7a2w3wkb-unknown-horizons-2019.1/lib/python3.9/site-packages/horizons/engine/engine.py", line 46, in __init__
    self._setting = Settings(PATHS.USER_CONFIG_FILE, PATHS.SETTINGS_TEMPLATE_FILE)
  File "/gnu/store/5kah2sx0bzp77l3fjbg4mx0y7a2w3wkb-unknown-horizons-2019.1/lib/python3.9/site-packages/horizons/engine/settings.py", line 39, in __init__
    self._settings_serializer.load(settings_file)
  File "/gnu/store/cyrgvpvh6wi15m4ffcdn3s55jypp8yqk-fifengine-0.4.2/lib/python3.9/site-packages/fife/extensions/serializers/simplexml.py", line 132, in load
    self._validateTree()
  File "/gnu/store/cyrgvpvh6wi15m4ffcdn3s55jypp8yqk-fifengine-0.4.2/lib/python3.9/site-packages/fife/extensions/serializers/simplexml.py", line 386, in _validateTree
    for c in self._root_element.getchildren():
AttributeError: 'xml.etree.ElementTree.Element' object has no attribute 'getchildren

---
Luis Felipe López Acevedo
https://luis-felipe.gitlab.io/