Additionally copying the fr.po file from r4300 to
version 1.4.7's folder locale did not help either.


Further tests...


I tracked the error source to file  i18n.py


Modifying

line 
############################################
        translator = translation_class(open(mofiles[0], "rb"))
############################################

to

############################################
        translator = null_translation_class()
############################################

makes installation succeed.



Remarks:

There must have been something changed by this hack, though...
Seems translation is broken by that- only English frontend is used, now.


mofiles[0] refers to a binary file
/usr/share/locale/en/LC_MESSAGES/roundup.mo
which I can't interprete...

Is there a way to avoid that utf8-error?
How can I dig deeper for the source of the error?