Python环境搭建

1.1.1  1python多版本管理工具pyenv安装

1.作用

  管理python解释器、python版本、python的虚拟环境

  软件下载地址：https://github.com/pyenv/pyenv

2.pyenv软件包安装

a、配置yum源（配置文件内容如下）

vi   CentOS6-Base-163.repo

[base]

name=CentOS-$releasever - Base - 163.com

baseurl=http://mirrors.163.com/centos/6/os/$basearch/

enable=1

gpgcheck=0

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

#released updates

[updates]

name=CentOS-$releasever - Updates - 163.com

baseurl=http://mirrors.163.com/centos/6/updates/$basearch/

gpgcheck=0

enable=1

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

#additional packages that may be useful

[extras]

name=CentOS-$releasever - Extras - 163.com

baseurl=http://mirrors.163.com/centos/6/extras/$basearch/

gpgcheck=0

enable=1

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

#additional packages that extend functionality of existing packages

[centosplus]

name=CentOS-$releasever - Plus - 163.com

baseurl=http://mirrors.163.com/centos/6/centosplus/$basearch/

gpgcheck=0

enabled=1

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

#contrib - packages by Centos Users

[contrib]

name=CentOS-$releasever - Contrib - 163.com

baseurl=http://mirrors.163.com/centos/6/contrib/$basearch/

gpgcheck=0

enabled=1

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

b、安装git软件和依赖包

yum install git -y

yum -y install gcc make patch gdbm-devel openssl-devel sqlite-devel readline- devel zlib-devel bzip2-devel

c、创建用户

useradd python

passwd python

d、安装pyenv软件

curl -L https://raw.githubusercontent.com/pyenv/pyenv-installer/master/bin/pyenv-installer | bash

e、配置环境变量

vim ~/.bash_profile

export PATH="/home/python/.pyenv/bin:$PATH"

eval "$(pyenv init -)"

eval "$(pyenv virtualenv-init -)"

1.1.2  3.使用pyenv软件安装和管理python

a、列出所有可用版本

    pyenv versions

b、安装指定python版本

pyenv install --list

pyenv install 3.5.3 –v

/home/python/.pyenv

/home/python/.pyenv/cache---需手工建立

c、创建一个目录让local捆绑在一个目录下

  pyenv versions------利用pyenv工具查看当前已安装python版本

* system (set by /home/python/.pyenv/version)

  3.5.3

  3.6.1

  3.6.3

mkdir -p magedu/projects

  cd magedu/projects/

  pyenv local 3.5.3----------------#让python版本捆绑在一个目录下

  python -V

  Python 3.5.3

  cd-------#你看如果在其它目录，python版本就是系统默认的2.6,local登录基本做到隔离

  python -V

  Python 2.6.6

 pyenv virtualenv用法

pyenv  virtualenv   3.6.3  mage363

pyenv  versions

  system

  3.5.3

  3.6.1

* 3.6.3 (set by /home/python/magedu/projects/web/.python-version)

  3.6.3/envs/mage363

* mage363 (set by /home/python/magedu/projects/web/.python-version)

pyenv  local mage363

(mage363) [python@python web]$

1.2     开发工具IPython Notebook的安装

1.2.1  1、配置pip国内源

mkdir /root/.pip

vim /root/.pip/pip.conf

[global]

index-url = http://mirrors.aliyun.com/pypi/simple/

[install]

trusted-host=mirrors.aliyun.com

pip  -V

pip 9.0.1 from /home/python/.pyenv/versions/3.5.3/lib/python3.5/site-packages (python 3.5)

1.2.2  2 、安装jupyter

  pip install IPython

  pip install urllib3 –安装IPython Notebook的依赖

  pip install jupyter –安装IPython Notebook

1.2.3  3、启动和修改密码

jupyter notebook --ip=0.0.0.0 --port 8000 --allow-root --no-browser

http://192.168.12.128:8080/

jupyter notebook --generate-config-----生成配置文件

生产密码和修改配置文件

Preparing a hashed password

Ipython

You can prepare a hashed password manually, using the function notebook.auth.security.passwd():

In [1]: from notebook.auth import passwd

In [2]: passwd()

Enter password:

Verify password:

Out[2]: 'sha1:67c9e60bb8b6:9ffede0825894254b2e042ea597d771089e11aed'

vi  jupyter_notebook_config.py(添加密码行)

c.NotebookApp.password = u'sha1:a025bae1e107:247f2a22dbd90d2bbeb0aa4e4af6cb3268dcee8f'

重启验证

jupyter notebook --ip=0.0.0.0 --port 8000 --allow-root --no-browser

1.3     3利用pip工具快速在不同项目导入导出包

1.3.1  1、接下来在这个环境，把安装的所有包导出：

(magedu353) [python@python9 cmdb]$ pip freeze >/tmp/packs.txt

(magedu353) [python@python9 cmdb]$ cat /tmp/packs.txt

1.3.2  2、#我们去web环境目录

pip install -r /tmp/packs.txt

#这样就相当于在部署跟cmdb上的环境包了(导入包)

1.4     4win开发工具PyCharm安装

1、  jupyter安装

安装 

pip  install  jupyter

启动

jupyter  notebook