我已经安装了YCM，并且在vim中打开文件时收到以下消息
YouCompleteMe unavailable: No module named builtins
我尝试遵循发现的here故障排除技巧，包括运行以下命令；
git submodule update --init --recursive
我从运行:py import pprint; pprint.pprint(sys.path)的输出如下；
[u'/Users/my_name/.vim/bundle/YouCompleteMe/python',
u'/Users/my_name/.vim/bundle/YouCompleteMe/third_party/requests-futures',
u'/Users/my_name/.vim/bundle/YouCompleteMe/third_party/ycmd',
u'/Users/my_name/.vim/bundle/YouCompleteMe/third_party/requests_deps/idna',
u'/Users/my_name/.vim/bundle/YouCompleteMe/third_party/requests_deps/chardet',
u'/Users/my_name/.vim/bundle/YouCompleteMe/third_party/requests_deps/urllib3/src',
u'/Users/my_name/.vim/bundle/YouCompleteMe/third_party/requests_deps/certifi',
u'/Users/my_name/.vim/bundle/YouCompleteMe/third_party/requests_deps/requests',
u'/Users/my_name/.vim/bundle/YouCompleteMe/third_party/pythonfutures',
'/Library/Python/2.7/site-packages/pip-18.1-py2.7.egg',
'/Library/Python/2.7/site-packages/requests-2.20.0-py2.7.egg',
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip',
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7',
u'/Users/my_name/.vim/bundle/YouCompleteMe/third_party/python-future/src',
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin',
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac',
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages',
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk',
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old',
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload',
'/Users/my_name/Library/Python/2.7/lib/python/site-packages',
'/Library/Python/2.7/site-packages',
'/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python',
'/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC',
'_vim_path_']
编辑：我正在尝试为python自动运行MacOS Mojave，并使用here
中的安装说明进行安装