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打开软件中心时出现 Python 错误

tag-icon • tag-icon 14.04 upgrade software-center python python-2.7
打开软件中心时出现 Python 错误

我的软件中心突然不工作了。当我尝试从启动器打开它时，它只是加载，但没有显示任何内容。

我尝试从终端运行它，但出现以下错误：

Traceback (most recent call last):
  File "/usr/bin/software-center", line 36, in <module>
    from softwarecenter.utils import (
  File "/usr/share/software-center/softwarecenter/utils.py", line 19, in <module>
    import dbus
  File "/usr/lib/python2.7/dist-packages/dbus/__init__.py", line 103, in <module>
    from dbus._dbus import Bus, SystemBus, SessionBus, StarterBus
  File "/usr/lib/python2.7/dist-packages/dbus/_dbus.py", line 39, in <module>
    from dbus.bus import BusConnection
  File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 39, in <module>
    from dbus.connection import Connection
  File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 37, in <module>
    from dbus.proxies import ProxyObject
  File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 34, in <module>
    from dbus._expat_introspect_parser import process_introspection_data
  File "/usr/lib/python2.7/dist-packages/dbus/_expat_introspect_parser.py", line 26, in <module>
    from xml.parsers.expat import ParserCreate
  File "/usr/lib/python2.7/xml/parsers/expat.py", line 4, in <module>
    from pyexpat import *
ImportError: /usr/lib/python2.7/lib-dynload/pyexpat.x86_64-linux-gnu.so: undefined symbol: XML_SetHashSalt
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/apport_python_hook.py", line 63, in apport_excepthook
    from apport.fileutils import likely_packaged, get_recent_crashes
  File "/usr/lib/python2.7/dist-packages/apport/__init__.py", line 5, in <module>
    from apport.report import Report
  File "/usr/lib/python2.7/dist-packages/apport/report.py", line 16, in <module>
    from xml.parsers.expat import ExpatError
  File "/usr/lib/python2.7/xml/parsers/expat.py", line 4, in <module>
    from pyexpat import *
ImportError: /usr/lib/python2.7/lib-dynload/pyexpat.x86_64-linux-gnu.so: undefined symbol: XML_SetHashSalt

Original exception was:
Traceback (most recent call last):
  File "/usr/bin/software-center", line 36, in <module>
    from softwarecenter.utils import (
  File "/usr/share/software-center/softwarecenter/utils.py", line 19, in <module>
    import dbus
  File "/usr/lib/python2.7/dist-packages/dbus/__init__.py", line 103, in <module>
    from dbus._dbus import Bus, SystemBus, SessionBus, StarterBus
  File "/usr/lib/python2.7/dist-packages/dbus/_dbus.py", line 39, in <module>
    from dbus.bus import BusConnection
  File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 39, in <module>
    from dbus.connection import Connection
  File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 37, in <module>
    from dbus.proxies import ProxyObject
  File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 34, in <module>
    from dbus._expat_introspect_parser import process_introspection_data
  File "/usr/lib/python2.7/dist-packages/dbus/_expat_introspect_parser.py", line 26, in <module>
    from xml.parsers.expat import ParserCreate
  File "/usr/lib/python2.7/xml/parsers/expat.py", line 4, in <module>
    from pyexpat import *
ImportError: /usr/lib/python2.7/lib-dynload/pyexpat.x86_64-linux-gnu.so: undefined symbol: XML_SetHashSalt

如果我没记错的话，我没有用 Python 库做任何事情。我谷歌了一下，有人说要用apt-get update& upgrade。我试过了，但没有成功。

更新

我尝试重新安装python并software-center使用：

sudo apt-get install --reinstall python2.7
sudo apt-get install --reinstall software-center

但错误仍然存​​在

谢谢你的时间。

答案1

您的 LD_LIBRARY_PATH 或类似的东西可能有问题，可能需要用其他的（即，/usr/local诸如 MATLAB 安装的库中的某些东西）替换正确的 libexpat.so。

这篇文章讨论了这个问题：http://ubuntuforums.org/showthread.php?t=2094005

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