Python 为什么vim中的sys.path与shell中的sys.path不同？

如果我在vim中执行命令

执行“python import sys；print（sys.path）”

，我会得到以下路径列表：

['/Users/<myuser>/.vim/bundle/python-mode/pymode/libs', '/Users/<myuser>/.vim/bundle/python-mode', '/Users/<myuser>', '/Users/<myuser>/Library/Python/2.7/lib/python/site-packages', '/usr/local/Cellar/python/2.7
.14_3/Frameworks/Python.framework/Versions/2.7/lib/python27.zip', '/usr/local/Cellar/python/2.7.14_3/Frameworks/Python.framework/Versions/2.7/lib/python2.7', '/usr/local/Cellar/python/2.7.14_3/Framework
s/Python.framework/Versions/2.7/lib/python2.7/plat-darwin', '/usr/local/Cellar/python/2.7.14_3/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac', '/usr/local/Cellar/python/2.7.14_3/Framew
orks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages', '/usr/local/Cellar/python/2.7.14_3/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk', '/usr/local/Cellar/pytho
n/2.7.14_3/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old', '/usr/local/Cellar/python/2.7.14_3/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload', '/usr/local/Cellar/pyt
hon/2.7.14_3/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages', '_vim_path_']

使用

python

，列表如下：

['', '/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg', '/Library/Python/2.7/site-packages/percol-0.2.1-py2.7.egg', '/Library/Python/2.7/site-packages/cmigemo-0.1.6-py2.7.egg', '/Library/Python/2.7/site-packages/six-1.11.0-py2.7.egg', '/Library/Python/2.7/site-packages', '/Users/shizhz', '/Users/shizhz/Library/Python/2.7/lib/python/site-packages', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7', '/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', '/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']

这让我感到困扰的原因是我正在用vim中的设置python环境，但由于vim中python的

sys.path

不包含所有python库的完整列表路径（例如

/Library/python/

下的目录），这使得自动完成对于某些第三方库不起作用。例如，

请求

位于我的计算机上的

/Library/Python/2.7/site packages/

，但当我在键入时尝试触发自动完成时，什么也没有发生（即使手动使用

C-X C-O

），当我执行

执行“Python showdbg（）”

时，调试消息是：

DBG: source: import requests
class _PyCmplNoType:
    def __getattr__(self,name):
        return None

DBG: parser: <type 'exceptions.ImportError'>, No module named requests
DBG: locals: <type 'exceptions.ImportError'>, No module named requests [import requests]
DBG: get_completions('request.','')
DBG: completion: <type 'exceptions.NameError'>,name 'request' is not defined [stmt='request']

DBG:source:导入请求
类_PyCmplNoType:
def _ugetattr _;（self，name）：
一无所获
DBG:解析器：，没有名为请求的模块
DBG:locals:，没有名为requests的模块[导入请求]
DBG:get_completions（'请求'，''）
DBG:completion:，未定义名称“request”[stmt='request']

但是，如果我将

/Library/Python/2.7/site packages/

附加到

sys.path

，它将非常有效。然后我的问题

• 为什么这两个列表不同，vim如何初始化sys.path
• 在vim中添加所有python库位置的最佳实践是什么

---

shell中的

python

（而不是

bpython

）有什么好处？嗨@cdarke，我在问题中添加了

python

列表。

DBG: source: import requests
class _PyCmplNoType:
    def __getattr__(self,name):
        return None

DBG: parser: <type 'exceptions.ImportError'>, No module named requests
DBG: locals: <type 'exceptions.ImportError'>, No module named requests [import requests]
DBG: get_completions('request.','')
DBG: completion: <type 'exceptions.NameError'>,name 'request' is not defined [stmt='request']