Bug#1089510: fife: uses python3-future, not declared as dependency & python3-future has been removed

[Tobias Frost]

Source: fife
Severity: grave

Dear Maintainer,

while trying to fix unknown-horizons, #1089495, I've found that fife
uses the python module future, which is gone (#1063264) due to
incompatiblity with python3.12

(It does not declare any dependency on python3-future, this is RC)

$unknown-horizons
Traceback (most recent call last):
  File "/usr/games/unknown-horizons", line 381, in <module>
    main()
  File "/usr/games/unknown-horizons", line 109, in main
    import horizons.main
  File "/usr/lib/python3/dist-packages/horizons/main.py", line 46, in <module>
    from horizons.gui import Gui
  File "/usr/lib/python3/dist-packages/horizons/gui/__init__.py", line 22, in <module>
    from .gui import Gui
  File "/usr/lib/python3/dist-packages/horizons/gui/gui.py", line 26, in <module>
    from fife.extensions.pychan.widgets import Container, Icon
  File "/usr/lib/python3/dist-packages/fife/extensions/pychan/__init__.py", line 245, in <module>
    from .widgets import *
  File "/usr/lib/python3/dist-packages/fife/extensions/pychan/widgets/__init__.py", line 33, in <module>
    from .widget import Widget
  File "/usr/lib/python3/dist-packages/fife/extensions/pychan/widgets/widget.py", line 33, in <module>
    from fife.extensions.pychan import events
  File "/usr/lib/python3/dist-packages/fife/extensions/pychan/events.py", line 67, in <module>
    from future.utils import itervalues
ModuleNotFoundError: No module named 'future'


-- 
tobi

-- System Information:
Debian Release: trixie/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'stable-security'), (500, 'oldstable-security'), (500, 'oldoldstable'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (500, 'oldstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.11.10-amd64 (SMP w/12 CPU threads; PREEMPT)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled