当我启动 Spyder3 或 backintime 时，它们会在 Unity 启动器中短暂闪烁，但实际上从未出现。
（见图）。如何修复？它们一周前都可以正常工作。
编辑：
当然，这里有两个：
~$ backintime
Traceback (most recent call last):
File "/usr/share/backintime/common/backintime.py", line 23, in <module>
import config
File "/usr/share/backintime/common/config.py", line 31, in <module>
import tools
File "/usr/share/backintime/common/tools.py", line 43, in <module>
import dbus
File "/usr/lib/python3/dist-packages/dbus/__init__.py", line 81, in <module>
import dbus.exceptions as exceptions
AttributeError: module 'dbus' has no attribute 'exceptions'
Error in sys.excepthook:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 63, in apport_excepthook
from apport.fileutils import likely_packaged, get_recent_crashes
File "/usr/lib/python3/dist-packages/apport/__init__.py", line 5, in <module>
from apport.report import Report
File "/usr/lib/python3/dist-packages/apport/report.py", line 30, in <module>
import apport.fileutils
File "/usr/lib/python3/dist-packages/apport/fileutils.py", line 23, in <module>
from apport.packaging_impl import impl as packaging
File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 23, in <module>
import apt
File "/usr/lib/python3/dist-packages/apt/__init__.py", line 23, in <module>
import apt_pkg
ModuleNotFoundError: No module named 'apt_pkg'
Original exception was:
Traceback (most recent call last):
File "/usr/share/backintime/common/backintime.py", line 23, in <module>
import config
File "/usr/share/backintime/common/config.py", line 31, in <module>
import tools
File "/usr/share/backintime/common/tools.py", line 43, in <module>
import dbus
File "/usr/lib/python3/dist-packages/dbus/__init__.py", line 81, in <module>
import dbus.exceptions as exceptions
AttributeError: module 'dbus' has no attribute 'exceptions'
和
~$ spyder3
Traceback (most recent call last):
File "/usr/local/lib/python3.6/dist-packages/spyder/utils/external/lockfile.py", line 150, in lock
symlink(str(os.getpid()), self.name)
FileExistsError: [Errno 17] File exists: '6240' -> '/home/me/.config/spyder-py3/spyder.lock'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.6/dist-packages/spyder/utils/external/lockfile.py", line 177, in lock
kill(int(pid), 0)
ProcessLookupError: [Errno 3] No such process
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.6/dist-packages/spyder/app/start.py", line 118, in main
lock_created = lock.lock()
File "/usr/local/lib/python3.6/dist-packages/spyder/utils/external/lockfile.py", line 196, in lock
rmlink(self.name)
PermissionError: [Errno 13] Permission denied: '/home/me/.config/spyder-py3/spyder.lock'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.6/dist-packages/qtpy/__init__.py", line 148, in <module>
from PySide import __version__ as PYSIDE_VERSION # analysis:ignore
ModuleNotFoundError: No module named 'PySide'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/bin/spyder3", line 11, in <module>
sys.exit(main())
File "/usr/local/lib/python3.6/dist-packages/spyder/app/start.py", line 138, in main
from spyder.app import mainwindow
File "/usr/local/lib/python3.6/dist-packages/spyder/app/mainwindow.py", line 49, in <module>
requirements.check_qt()
File "/usr/local/lib/python3.6/dist-packages/spyder/requirements.py", line 39, in check_qt
import qtpy
File "/usr/local/lib/python3.6/dist-packages/qtpy/__init__.py", line 154, in <module>
raise PythonQtError('No Qt bindings could be found')
qtpy.PythonQtError: No Qt bindings could be found
Error in sys.excepthook:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 63, in apport_excepthook
from apport.fileutils import likely_packaged, get_recent_crashes
File "/usr/lib/python3/dist-packages/apport/__init__.py", line 5, in <module>
from apport.report import Report
File "/usr/lib/python3/dist-packages/apport/report.py", line 30, in <module>
import apport.fileutils
File "/usr/lib/python3/dist-packages/apport/fileutils.py", line 23, in <module>
from apport.packaging_impl import impl as packaging
File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 23, in <module>
import apt
File "/usr/lib/python3/dist-packages/apt/__init__.py", line 23, in <module>
import apt_pkg
ModuleNotFoundError: No module named 'apt_pkg'
Original exception was:
Traceback (most recent call last):
File "/usr/local/lib/python3.6/dist-packages/spyder/utils/external/lockfile.py", line 150, in lock
symlink(str(os.getpid()), self.name)
FileExistsError: [Errno 17] File exists: '6240' -> '/home/me/.config/spyder-py3/spyder.lock'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.6/dist-packages/spyder/utils/external/lockfile.py", line 177, in lock
kill(int(pid), 0)
ProcessLookupError: [Errno 3] No such process
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.6/dist-packages/spyder/app/start.py", line 118, in main
lock_created = lock.lock()
File "/usr/local/lib/python3.6/dist-packages/spyder/utils/external/lockfile.py", line 196, in lock
rmlink(self.name)
PermissionError: [Errno 13] Permission denied: '/home/me/.config/spyder-py3/spyder.lock'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.6/dist-packages/qtpy/__init__.py", line 148, in <module>
from PySide import __version__ as PYSIDE_VERSION # analysis:ignore
ModuleNotFoundError: No module named 'PySide'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/bin/spyder3", line 11, in <module>
sys.exit(main())
File "/usr/local/lib/python3.6/dist-packages/spyder/app/start.py", line 138, in main
from spyder.app import mainwindow
File "/usr/local/lib/python3.6/dist-packages/spyder/app/mainwindow.py", line 49, in <module>
requirements.check_qt()
File "/usr/local/lib/python3.6/dist-packages/spyder/requirements.py", line 39, in check_qt
import qtpy
File "/usr/local/lib/python3.6/dist-packages/qtpy/__init__.py", line 154, in <module>
raise PythonQtError('No Qt bindings could be found')
qtpy.PythonQtError: No Qt bindings could be found
答案1
backintime我们可以通过重新安装依赖项来修复错误：
sudo apt-get install --reinstall backintime-qt4 libqt4-designer libqt4-help libqt4-opengl libqt4-scripttools libqt4-svg libqt4-test libqtassistantclient4 libqtwebkit4 python3-dbus python3-dbus.mainloop.qt python3-keyring python3-pyqt4 python3-secretstorage python3-sip