Labelme cannot open the picture

Project scenario ：

Image recognition annotation tool labelme

Environmental Science ：window10+python3.9+labelme

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Problem description ：

python and script After adding environment variables to the path, directly pip install labelme install

cmd Input labelme There may be QtPy5 Report errors , Cannot be opened label Interface , There is no response when opening the picture

[WARNING] __init__:update_dict:17 - Skipping unexpected key in config: num_backups

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Cause analysis ：

Most of the problems are because python Chinese in installation path ！！！

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Solution ：

First check Python Whether there is Chinese in the installation path , If there is , uninstall python Reinstall to the English only path , It can basically solve most problems .