YouCompleteMe错误:找不到符号：__PyCodecInfo_GetIncrementalDecoder

Question

已安装vim的YouCompleteMe (./install.py --tern-complete --clang-complete)，但出现错误。

错误：

Traceback (most recent call last):
  File "<string>", line 19, in <module>
  File "/Users/khotey/.vim/plugged/YouCompleteMe/autoload/../python/ycm/setup.py", line 37, in SetUpSystemPaths
    from ycmd import server_utils as su
  File "/Users/khotey/.vim/plugged/YouCompleteMe/python/ycm/../../third_party/ycmd/ycmd/server_utils.py", line 25, in <module>
    import io
  File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/io.py", line 51, in <module>
    import _io
ImportError: dlopen(/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_io.so, 2): Symbol not found: __PyCodecInfo_GetIncrementalDecoder
  Referenced from: /usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_io.so
  Expected in: flat namespace
 in /usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_io.so
YouCompleteMe unavailable: dlopen(/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_io.so, 2): Symbol not found: __PyCodecInfo_GetIncrementalDecoder
  Referenced from: /usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_io.so
  Expected in: flat namespace
 in /usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_io.so
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Answer 1

对我来说，问题是Vim没有使用合适的Python版本。

我在我的Mac上通过以下方式解决了这个问题：

brew unlink python
brew link python

Discussion in ycm issue.