ERROR: Cannot uninstall 'PyYAML'.which files belong to it which would lead to only a partial uninstall$ pip install -U PyYAMLwriteable
Processing ./.cache/pip/wheels/e5/9d/ad/2ee53cf262cba1ffd8afe1487eef788ea3f260b7e6232a8
我有一个使用YAML的Python程序。我尝试使用pip install yaml在新服务器上安装它,但它返回以下信息:Downloading/unpacking yamlNo distributions at all found for yaml如何安装Python的yaml包?我运行的是Python 2.7。(操作系统