##安装blew
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
##安装zlib依赖
brew install zlib
brew link zlib --force
##安装pyenv
brew install pyenv
$ pyenv
pyenv 1.2.4
Usage: pyenv []
Some useful pyenv commands are:
commands List all available pyenv commands
local Set or show the local application-specific Python version
global Set or show the global Python version
shell Set or show the shell-specific Python version
install Install a Python version using python-build
uninstall Uninstall a specific Python version
rehash Rehash pyenv shims (run this after installing executables)
version Show the current Python version and its origin
versions List all Python versions available to pyenv
which Display the full path to an executable
whence List all Python versions that contain the given executable
See `pyenv help ' for information on a specific command.
For full documentation, see: https://github.com/pyenv/pyenv#readme
需要在.bash_profile的最下面加入
if which pyenv > /dev/null; then eval "$(pyenv init -)"; fi
#查看可以安装的版本
pyenv install -l
#安装3.5.3
CFLAGS="-I$(xcrun --show-sdk-path)/usr/include" pyenv install -v 3.5.3
#查看已经安装的python版本,其中*表示当前版本。
$ pyenv versions
* system (set by /Users/hong/.pyenv/version)
3.5.3
qiaohongdeMacBook-Pro:~ hong$ pyenv versions
* system (set by /Users/hong/.pyenv/version)
3.5.3
qiaohongdeMacBook-Pro:~ hong$ pyenv global 3.5.3
qiaohongdeMacBook-Pro:~ hong$ pyenv versions
system
* 3.5.3 (set by /Users/hong/.pyenv/version)
通过global参数修改全局的python版本,会导致系统异常,因为中部分软件依赖低版本python,应该通过local设置该目录下的python版本,子目录会同步变更。
$ pwd
/Users/hong/python/project
$ pyenv version
system (set by /Users/hong/.pyenv/version)
$ cd test/
$ pyenv local 3.5.3
$ pyenv version
3.5.3 (set by /Users/hong/python/project/test/.python-version)
$ cd ..
$ pyenv version
system (set by /Users/hong/.pyenv/version)
虽然通过local设置目录的版本,但是在团队开发时,如我装了10个包,A又安装了20个,都装到了3.5.3这个环境中,程序打包时没法将不要的包剔除出去,而且相同的包版本不同也会引起冲突。怎么解决呢,pyenv提供了virtualenv(虚拟环境)用来实现包隔离。
virtualenv安装及使用
##virtualenv是依赖python的,所以在安装前至少要有一个python的版本。通过pip、brew或源码安装
brew install pyenv-virtualenv
##基于3.5.3版本创建虚拟环境nenv353
$ pyenv virtualenv 3.5.3 nenv353
$ pyenv versions
system
* 3.5.3 (set by /Users/hong/python/project/test/.python-version)
3.5.3/envs/nenv353
nenv353
##在nenv353下安装redis
pip install redis
##验证redis安装位置
$ pwd
/Users/hong/.pyenv/versions/nenv353/lib/python3.5/site-packages
$ ls redi*
redis:
$ pwd
/Users/hong/.pyenv/versions/3.5.3/lib/python3.5/site-packages
$ ls
README setuptools
__pycache__ setuptools-28.8.0.dist-info
easy_install.py virtualenv-16.0.0.dist-info
pip virtualenv.py
pip-9.0.1.dist-info virtualenv_support
pkg_resources
qiaohongdeMacBook-Pro:site-packages hong$
##安装
jupyter,默认会安装Ipython
pip install jupyter
##修改jupyter notebook密码
jupyter notebook password
##启动jupyter,默认端口8888,启动后通过浏览器打开。--ip:0.0.0.0设置后,远程机器可以通过ip访问。
jupyter notebook --ip=0.0.0.0
输入密码