[beedaddy]

I know that calibre is a complex piece of software. Nevertheless, I tried to compile it in a aarch64 qemu with debian bullseye. I tried to follow this guide. Running "./setup.py bootstrap" ends up with the following error message:

Traceback (most recent call last):
  File "/home/martin/src/calibre/./setup.py", line 119, in <module>
    sys.exit(main())
  File "/home/martin/src/calibre/./setup.py", line 104, in main
    command.run_all(opts)
  File "/home/martin/src/calibre/setup/__init__.py", line 233, in run_all
    self.run_cmd(self, opts)
  File "/home/martin/src/calibre/setup/__init__.py", line 223, in run_cmd
    self.run_cmd(scmd, opts)
  File "/home/martin/src/calibre/setup/__init__.py", line 227, in run_cmd
    cmd.run(opts)
  File "/home/martin/src/calibre/setup/translations.py", line 319, in run
    self.compile_website_translations()
  File "/home/martin/src/calibre/setup/translations.py", line 615, in compile_website_translations
    done = self._compile_website_translations()
  File "/home/martin/src/calibre/setup/translations.py", line 608, in _compile_website_translations
    lang_names[l] = {x: t(x) for x in dl}
  File "/home/martin/src/calibre/setup/translations.py", line 608, in <dictcomp>
    lang_names[l] = {x: t(x) for x in dl}
  File "/home/martin/src/calibre/src/calibre/utils/localization.py", line 417, in get_language
    return get_iso_language(gettext_func, lang)
  File "/home/martin/src/calibre/src/calibre/utils/localization.py", line 397, in get_iso_language
    iso639 = _load_iso639()
  File "/home/martin/src/calibre/src/calibre/utils/localization.py", line 390, in _load_iso639
    _iso639 = msgpack_loads(ip)
  File "/home/martin/src/calibre/src/calibre/utils/serialize.py", line 110, in msgpack_loads
    return msgpack.unpackb(dump, ext_hook=msgpack_decoder, raw=False, use_list=use_list, strict_map_key=False)
  File "msgpack/_unpacker.pyx", line 206, in msgpack._cmsgpack.unpackb
ValueError: Unpack failed: incomplete input

Now I'm not sure what the problem could be. I can't see whether there's a package missing. Perhaps someone has an idea…?