我在macOS Sierra 10.12.6
今天我跑
brew update
brew upgrade
它升级了一堆软件包和安装,包括python。升级后,虽然ipython
指向正确的安装,python
却没有。例如:
:
$ which python
/usr/bin/python
这样:
$ python
Python 2.7.10 (default, Feb 7 2017, 00:08:15)
[GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.34)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
但:
$ which ipython
/usr/local/bin/ipython
这样
$ ipython
Python 2.7.13 (default, Aug 17 2017, 16:42:26)
Type "copyright", "credits" or "license" for more information.
或:
$ which pip
/usr/local/bin/pip
这也很好。
当然,我的.bash_profile
包括:
# Homebrew
export PATH=/usr/local/bin:$PATH
和
$ echo $PATH
/usr/local/bin:/usr/local/bin:/usr/local/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin
运行brew upgrade
之后我今天安装了命令行工具:
xcode-select --install
因为在升级过程中建议使用它,但我怀疑这与问题有什么关系(?)
我试过了
$ brew link python
Warning: Already linked: /usr/local/Cellar/python/2.7.13_1
To relink: brew unlink python && brew link python
然后brew unlink python && brew link python
但问题仍然存在。
总结一下:如何使安装保持一致?或者如何让python指向正确的安装?
修改:
在brew upgrade
安装它们时,python2和python3。要访问这些安装,您需要指定版本,所以:
$ which python
/usr/bin/python
$ which python2
/usr/local/bin/python2
$ which python3
/usr/local/bin/python3
并注意在运行brew upgrade
之前我没有python3。
答案 0 :(得分:0)
可以通过调用:
找到解决方案brew info python
然后可以阅读
==> Caveats
This formula installs a python2 executable to /usr/local/bin.
If you wish to have this formula's python executable in your PATH then add
the following to ~/.bash_profile:
export PATH="/usr/local/opt/python/libexec/bin:$PATH"
所以简单地添加:
export PATH="/usr/local/opt/python/libexec/bin:$PATH"
到~/.bash_profile
文件
这解决了这个问题。