pip安装时出现:INFO: This is taking longer than usual. You might need to provide the dependency resolver w

pip安装时出现INFO: This is taking longer than usual. You might need to provide the dependency resolver with stricter constraints to reduce runtime. See https://pip.pypa.io/warnings/backtracking for guidance. If you want to abort this run, press Ctrl + C.无限依赖问题导致无法正常安装


解决方法:更新pip

pip install --upgrade pip

如果还不行则继续升级系统的包管理器

sudo apt update
sudo apt upgrade

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