I did a bit more looking into this problem. This gets triggered if a
transaction error occurs while trying to install the package. This
generates an exception, and it is handling the exception's translated
message string that the crash occurs, due to using the ascii codec to
encode a unicode that contains characters above code 127. Mousetrap
triggers this because it tries to install gnome-mousetrap which has a
dependency problem. So I guess the common denominator in packages that
trigger this problem is that they all generate an error while
installing, due to dependency problems or possibly other factors.
This is visible in the terminal from which software-center is run when
trying to install mousetrap:
2011-09-12 12:47:27,097 - softwarecenter.backend - ERROR - error in
_on_trans_finished 'Fehler: Die Paketabhängigkeiten können nicht aufgelöst
werden
Dieser Fehler könnte durch weitere erforderliche Software-Pakete, die jedoch
fehlen oder nicht installiert werden können, verursacht worden sein. Außerdem
könnte es einen Konflikt zwischen Paketen geben, die nicht zur selben Zeit
installiert sein dürfen.
Die folgenden Pakete haben nicht erfüllte Abhängigkeiten:
gnome-mousetrap: Depends: python (>= 2.6) aber 2.7.2-5ubuntu1 soll installiert
werden
Depends: python-support (>= 0.90.0) aber 1.0.13ubuntu1 soll
installiert werden
Now, I tried setting the default encoding for the system in
/usr/lib/python2.7/sitecustomize.py by adding:
import sys
sys.setdefaultencoding('utf8')
If I do this, I still see the above error message, as the dependency
problem still remains, but I do not get the UnicodeEncodeError exception
that was happening in software-center.
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Bug Control, which is subscribed to the bug report.
https://bugs.launchpad.net/bugs/846044
Title:
software-center crashed with UnicodeEncodeError in get_dbus_message():
'ascii' codec can't encode character u'\xfc' in position 65: ordinal
not in range(128)
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