Spyder (pip已安装)不再以错误开始:未定义符号：_ZdaPvm，version QT_5
Spyder (pip已安装)不再以错误开始:未定义符号：_ZdaPvm，version QT_5
提问于 2022-08-18 11:49:27
在Ubuntu22.04(5.15.0-43泛型)上，我使用斯派德更新了pip，如下所示：
$ sudo -H pip3 install --upgrade spyder一切顺利，但当我现在启动spyder时，它会抛出这个错误：
$ spyder
Traceback (most recent call last):
File "/usr/local/bin/spyder", line 8, in <module>
sys.exit(main())
File "/usr/local/lib/python3.10/dist-packages/spyder/app/start.py", line 248, in main
from spyder.app import mainwindow
File "/usr/local/lib/python3.10/dist-packages/spyder/app/mainwindow.py", line 57, in <module>
from qtpy import QtWebEngineWidgets # analysis:ignore
File "/usr/local/lib/python3.10/dist-packages/qtpy/QtWebEngineWidgets.py", line 29, in <module>
from PyQt5.QtWebEngineWidgets import QWebEnginePage
ImportError: /usr/local/lib/python3.10/dist-packages/PyQt5/Qt5/lib/libQt5Network.so.5: undefined symbol: _ZdaPvm, version Qt_5更多信息：
$ python3 --version
Python 3.10.4$ pip list | grep -i pyqt
PyQt5 5.15.6
PyQt5-Qt5 5.15.2
PyQt5-sip 12.11.0
PyQtWebEngine 5.15.5
PyQtWebEngine-Qt5 5.15.2$ pip list | grep -i spyder
pyls-spyder 0.4.0
spyder 5.3.2
spyder-kernels 2.3.2我无法卸载PyQt5：
$ sudo -H pip uninstall pyqt5
Found existing installation: PyQt5 5.15.6
ERROR: Cannot uninstall PyQt5 5.15.6, RECORD file not found. Hint: The package was installed by sip-build.终端机上最后一行用红色印刷。
从这一点出发，我无法找到有关如何调试它的相关信息，以使spyder再次工作。
我能做些什么来纠正这个错误？
回答 2
Stack Overflow用户
回答已采纳
发布于 2022-08-31 14:21:47
好吧，这个帮我修好了：
$ sudo -H pip3 install --force-reinstall spyder它可能会引发一些错误，例如：
Attempting uninstall: PyQtWebEngine
Found existing installation: PyQtWebEngine 5.15.5
ERROR: Cannot uninstall PyQtWebEngine 5.15.5, RECORD file not found. Hint: The package was installed by sip-build.如果您试图单独更新它，将显示：
$ sudo -H pip3 install -U PyQtWebEngine
Requirement already satisfied: PyQtWebEngine in /usr/lib/python3/dist-packages (5.15.5)
Collecting PyQtWebEngine
Using cached PyQtWebEngine-5.15.6-cp37-abi3-manylinux1_x86_64.whl (230 kB)
Requirement already satisfied: PyQt5>=5.15.4 in /usr/local/lib/python3.10/dist-packages (from PyQtWebEngine) (5.15.7)
Requirement already satisfied: PyQtWebEngine-Qt5>=5.15.0 in /usr/local/lib/python3.10/dist-packages (from PyQtWebEngine) (5.15.2)
Requirement already satisfied: PyQt5-sip<13,>=12.11 in /usr/local/lib/python3.10/dist-packages (from PyQtWebEngine) (12.11.0)
Requirement already satisfied: PyQt5-Qt5>=5.15.0 in /usr/local/lib/python3.10/dist-packages (from PyQt5>=5.15.4->PyQtWebEngine) (5.15.2)
Installing collected packages: PyQtWebEngine
Attempting uninstall: PyQtWebEngine
Found existing installation: PyQtWebEngine 5.15.5
ERROR: Cannot uninstall PyQtWebEngine 5.15.5, RECORD file not found. Hint: The package was installed by sip-build.因此，在这种情况下，使用incriminated上的--ignore-installed标志运行安装，安装它时应该没有任何问题：
$ sudo -H pip3 install --ignore-installed PyQtWebEngine
Collecting PyQtWebEngine
Using cached PyQtWebEngine-5.15.6-cp37-abi3-manylinux1_x86_64.whl (230 kB)
Collecting PyQtWebEngine-Qt5>=5.15.0
Using cached PyQtWebEngine_Qt5-5.15.2-py3-none-manylinux2014_x86_64.whl (67.5 MB)
Collecting PyQt5>=5.15.4
Using cached PyQt5-5.15.7-cp37-abi3-manylinux1_x86_64.whl (8.4 MB)
Collecting PyQt5-sip<13,>=12.11
Using cached PyQt5_sip-12.11.0-cp310-cp310-manylinux1_x86_64.whl (359 kB)
Collecting PyQt5-Qt5>=5.15.0
Using cached PyQt5_Qt5-5.15.2-py3-none-manylinux2014_x86_64.whl (59.9 MB)
Installing collected packages: PyQtWebEngine-Qt5, PyQt5-Qt5, PyQt5-sip, PyQt5, PyQtWebEngine
Successfully installed PyQt5-5.15.7 PyQt5-Qt5-5.15.2 PyQt5-sip-12.11.0 PyQtWebEngine-5.15.6 PyQtWebEngine-Qt5-5.15.2之后，上述错误将永远不会再次出现。在此作为一个例子：
$ sudo -H pip3 install -U PyQtWebEngine
Requirement already satisfied: PyQtWebEngine in /usr/local/lib/python3.10/dist-packages (5.15.6)
Requirement already satisfied: PyQtWebEngine-Qt5>=5.15.0 in /usr/local/lib/python3.10/dist-packages (from PyQtWebEngine) (5.15.2)
Requirement already satisfied: PyQt5-sip<13,>=12.11 in /usr/local/lib/python3.10/dist-packages (from PyQtWebEngine) (12.11.0)
Requirement already satisfied: PyQt5>=5.15.4 in /usr/local/lib/python3.10/dist-packages (from PyQtWebEngine) (5.15.7)
Requirement already satisfied: PyQt5-Qt5>=5.15.0 in /usr/local/lib/python3.10/dist-packages (from PyQt5>=5.15.4->PyQtWebEngine) (5.15.2)对所有违规的包重复相同的过程。
最后更新间谍：
$ sudo -H pip3 install --force-reinstall spyder然后瞧。应该有一个工作间谍。
作为旁白:请注意-H选项在sudo之后。此安装包在/usr/local/lib/python3.xx/dist-packages下，通常不会与apt系统范围内安装的软件包(在/usr/lib/python3/dist-packages下)冲突，而且您肯定不想接触比apt更多的东西！
我使用它来避免在用户基础上安装相同的软件包，方法是调用pip而不使用sudo，后者将在~/.local/lib/python3.10/site-packages/下为机器上的每个用户安装它们。
Stack Overflow用户
发布于 2022-08-18 12:05:11
你看过这吗？这正是不应该使用sudo pip install的原因。库版本会被篡改，出现不一致的地方，而且一些东西无法工作。
使用sudo pip (最后一次)卸载Spyder和PyQT5，然后使用apt重新安装相关的包。最后，使用sudo__!). (no )升级间谍那之后一切都会好起来的。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/73402582
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