1 Descriptors cannot not be created directly
在运行诸如深度学习python等程序时，如mmdetection、mmdetection3d中的程序，会出现报错：“Descriptors cannot not be created directly”。详细报错如下：
TypeError: Descriptors cannot not be created directly.
If this call came from a _pb2.py file, your generated code is out of date and must be regenerated with protoc >= 3.19.0.
If you cannot immediately regenerate your protos, some other possible workarounds are:
1. Downgrade the protobuf package to 3.20.x or lower.
2. Set PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=python (but this will use pure-Python parsing and will be much slower).
TypeError: Descriptors cannot not be created directly.
If this call came from a _pb2.py file, your generated code is out of date and must be regenerated with protoc >= 3.19.0.
If you cannot immediately regenerate your protos, some other possible workarounds are:
1. Downgrade the protobuf package to 3.20.x or lower.
2. Set PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=python (but this will use pure-Python parsing and will be much slower).出现这个问题的主要原因是protobuf版本不匹配。因此，按照错误提示，用pip安装对应版本的protobuf即可，如上述问题中对应的 3.20.1版本。安装命令为：
pip install protobuf==3.20.12 AttributeError: type object 'DialogCode' has no attribute 'Accepted'
这个错误通常和pyQT组件版本有关，特别是在mayavi使用时会出现该错误。详细报错内容如下：
int(QtGui.QDialog.DialogCode.Accepted): OK,
AttributeError: type object 'DialogCode' has no attribute 'Accepted'解决方式是重新安装pyqt5，即：文章来源：https://www.toymoban.com/news/detail-590322.html
pip install protobuf==pyqt52 AttributeError: type object 'DialogCode' has no attribute 'Accepted'
这个错误通常和pyQT组件版本有关，特别是在mayavi使用时会出现该错误。详细报错内容如下：
int(QtGui.QDialog.DialogCode.Accepted): OK,
AttributeError: type object 'DialogCode' has no attribute 'Accepted'解决方式是重新安装pyqt5，即：
pip install protobuf==pyqt5更多三维、二维感知算法和金融量化分析算法请关注“乐乐感知学堂”微信公众号，并将持续进行更新。文章来源地址https://www.toymoban.com/news/detail-590322.html
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