gentoo YouCompleteMe unavailable: requires Vim compiled with Python (3.5.1+) support.

YouCompleteMe unavailable: requires Vim compiled with Python (3.5.1+) support.(gentoo)

1. 检查vim安装时是否选用了支持python的USE标志

   vim --version
   

   如果未设置python的USE标志，那么这里为-python -python3
   

2. 设置vim的python USE标志

   # 为vim单独设置USE
   vim /etc/portage/package.use/vim
   # python代表启用python支持，PYTHON_TARGETS和PYTHON_SINGLE_TARGET用来设置具体的python版本(将本行内容写入上一行打开的文件)
   app-editors/vim python PYTHON_TARGETS: -* python3_7 PYTHON_SINGLE_TARGET: -* python3_7
   

   参考文献：https://wiki.gentoo.org/wiki/Project:Python/PYTHON_TARGETS

3. 重新安装vim

   sudo emerge --ask vim