Quote:
	
	
		| 
					Originally Posted by jgoguen  Version 3.4.3 has been uploaded which resolves the issue. I'm not sure if I should be grumpy about Windows or about Python, but this only happened on Windows systems. | 
	
 
EDIT : Problem fixed with 3.4.3. Thanks. 
In Calibre, it's still version 3.4.2
I'm a French user. I'm on MacOS  (M1 chip)
KePub OutOut does not seem to install. This is the error message (in French, sorry.)
calibre, version 5.8.1
ERREUR : L’installation de l’extension a échoué: Un problème est survenu lors de l’installation de cette extension. Cette extension va être maintenant désinstallée. Veuillez svp bien vouloir poster le message d’erreur détaillé ci-dessous dans la discussion du forum relative à cette extension et redémarrer calibre.
Traceback (most recent call last):
  File "calibre/gui2/dialogs/plugin_updater.py", line 709, in _install_clicked
  File "calibre/customize/ui.py", line 472, in add_plugin
  File "calibre/customize/ui.py", line 61, in load_plugin
  File "calibre/customize/zipplugin.py", line 293, in load
  File "importlib/__init__.py", line 127, in import_module
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "calibre/customize/zipplugin.py", line 192, in exec_module
  File "calibre_plugins.kepubout.__init__", line 9, in <module>
    from calibre_plugins.kepubout.conversion.kepub_output import KEPubOutput
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "calibre/customize/zipplugin.py", line 192, in exec_module
  File "calibre_plugins.kepubout.conversion.kepub_output"  , line 21, in <module>
    from calibre_plugins.kepubout.container import KEPubContainer
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "calibre/customize/zipplugin.py", line 192, in exec_module
  File "calibre_plugins.kepubout.container", line 49, in <module>
    load_translations()
  File "calibre/customize/zipplugin.py", line 119, in load_translations
  File "gettext.py", line 261, in __init__
  File "gettext.py", line 456, in _parse
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 20: ordinal not in range(128)
 
The same with KoboTouch Extended.
calibre, version 5.8.1
ERREUR : L’installation de l’extension a échoué: Un problème est survenu lors de l’installation de cette extension. Cette extension va être maintenant désinstallée. Veuillez svp bien vouloir poster le message d’erreur détaillé ci-dessous dans la discussion du forum relative à cette extension et redémarrer calibre.
Traceback (most recent call last):
  File "calibre/gui2/dialogs/plugin_updater.py", line 709, in _install_clicked
  File "calibre/customize/ui.py", line 472, in add_plugin
  File "calibre/customize/ui.py", line 61, in load_plugin
  File "calibre/customize/zipplugin.py", line 293, in load
  File "importlib/__init__.py", line 127, in import_module
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "calibre/customize/zipplugin.py", line 192, in exec_module
  File "calibre_plugins.kobotouch_extended.__init__", line 9, in <module>
    from calibre_plugins.kobotouch_extended.device.driver import KOBOTOUCHEXTENDED
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "calibre/customize/zipplugin.py", line 192, in exec_module
  File "calibre_plugins.kobotouch_extended.device.driver"  , line 25, in <module>
    from calibre_plugins.kobotouch_extended.container import KEPubContainer
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "calibre/customize/zipplugin.py", line 192, in exec_module
  File "calibre_plugins.kobotouch_extended.container"  , line 49, in <module>
    load_translations()
  File "calibre/customize/zipplugin.py", line 119, in load_translations
  File "gettext.py", line 261, in __init__
  File "gettext.py", line 456, in _parse
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 20: ordinal not in range(128)