我使用homebrew安装python，并使用pip随附在Mac OS EL Captian上安装python软件包。
当安装python模块时，用python安装的pip可以正常工作，并且我将其导入python shell中没有问题（我已经测试了请求和beautifulsoup4并且可以找到它们）。但是我找不到某些python模块的可执行文件。
例如，在这个问题中，我询问了关于python sphinx doc generator命令not found的问题。根据文档，sphinx-build在安装pip之后，我应该有一个可执行命令。但是正如您在该问题中看到的那样，找不到该命令。
我进一步尝试了另一种饼干。点安装顺利运行，没有任何问题。但是仍然找不到二进制可执行文件。如你看到的：
JINXUANs-MacBook-Pro:~ jinxuanwu$ pip install cookiecutter
Requirement already satisfied (use --upgrade to upgrade): cookiecutter in /usr/local/lib/python2.7/site-packages
Requirement already satisfied (use --upgrade to upgrade): binaryornot>=0.2.0 in /usr/local/lib/python2.7/site-packages (from cookiecutter)
Requirement already satisfied (use --upgrade to upgrade): whichcraft>=0.1.1 in /usr/local/lib/python2.7/site-packages (from cookiecutter)
Requirement already satisfied (use --upgrade to upgrade): future>=0.15.2 in /Library/Python/2.7/site-packages (from cookiecutter)
Requirement already satisfied (use --upgrade to upgrade): ruamel.yaml>=0.10.12 in /usr/local/lib/python2.7/site-packages (from cookiecutter)
Requirement already satisfied (use --upgrade to upgrade): jinja2>=2.7 in /Library/Python/2.7/site-packages (from cookiecutter)
Requirement already satisfied (use --upgrade to upgrade): click>=5.0 in /usr/local/lib/python2.7/site-packages (from cookiecutter)
Requirement already satisfied (use --upgrade to upgrade): chardet>=2.0.0 in /usr/local/lib/python2.7/site-packages (from binaryornot>=0.2.0->cookiecutter)
Requirement already satisfied (use --upgrade to upgrade): ruamel.ordereddict in /usr/local/lib/python2.7/site-packages (from ruamel.yaml>=0.10.12->cookiecutter)
Requirement already satisfied (use --upgrade to upgrade): ruamel.base>=1.0.0 in /usr/local/lib/python2.7/site-packages (from ruamel.yaml>=0.10.12->cookiecutter)
Requirement already satisfied (use --upgrade to upgrade): MarkupSafe in /Library/Python/2.7/site-packages (from jinja2>=2.7->cookiecutter)
JINXUANs-MacBook-Pro:~ jinxuanwu$ cookiecutter
-bash: cookiecutter: command not found
JINXUANs-MacBook-Pro:~ jinxuanwu$
我也尝试使用pip install virtualenv仍然面对命令未找到问题。
我的Python版本是2.7.11，pip是8.0.2，Python随附。
使用pip show -f cookiecutter表明它安装了一切的位置（这是我从这个发现由PIP安装在如何列出文件答案
当我运行它时，它表明它已安装在中../../../../usr/local/bin/cookiecutter。查看Location上面的信息（/Library/Python/2.7/site-packages以我为例），我可以看到字符串..用来获取根目录。
在我的Mac上，它已将其安装在中/usr/local/bin。因此，我可以通过更新环境路径来访问它：
export PATH=$PATH:/usr/local/bin
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我来说两句