解决jupyter运行pyqt代码内核重启
本文共 611 字，大约阅读时间需要 2 分钟。
在jupyter notebook或者是 Qtconsole下编译运行一个简单的pyqt程序，总是报错：The kernel appears to have died. It will restart automatically.
from PyQt5.QtWidgets import *from PyQt5.QtGui import *from PyQt5.QtCore import *import sysapp = QApplication(sys.argv)window = QWidget();window.show()app.exec_()
sys.exit(app.exec_())
这样再运行结束程序是只会结束本程序 不会终止内核 。问题解决。
但是这样也引入了一个新的问题An exception has occurred, use %tb to see the full traceback
因为这个程序直接调用sys.exit直接终止的 。不过影响不大。
总结：这两个错误都是在IPython交互环境下才会报错，脚本运行时不会报错。如果对报错介意的话 ，就还是使用命令行执行程序吧。
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